Centimeters to Feet Converter
Instantly convert centimeters to feet, inches, meters, and more — with live precision control, quick presets, composite ft & in display, and a downloadable PDF report.
Uses the exact factor 1 foot = 30.48 cm (international defined constant) — for reference only.
| Centimeters | Feet | Inches | Ft & In |
|---|
Centimeters to Feet Conversion — Complete Guide for 2026
Converting centimeters to feet is one of the most common length-unit conversions in everyday life — arising whenever a height measured in the metric system used by most of the world needs to be expressed in feet and inches for a U.S. audience, a passport application, a medical form, or an international sports profile. The entire conversion rests on one exact, internationally defined relationship: 1 foot = 30.48 centimeters exactly.
Our free Centimeters to Feet Converter performs this calculation with up to 8 decimal places and automatically outputs results across the full unit ladder — including the uniquely important composite feet-and-inches format (e.g. “5 ft 6.9 in”) used in everyday U.S. height communication — alongside meters, millimeters, yards, kilometers, miles, a live log-scale bar chart, and a downloadable 2-page PDF report.
How to Use the Centimeters to Feet Converter in 4 Steps
A complete conversion takes under five seconds. Enter your cm value, set your precision, review every unit output simultaneously including the composite ft & in display, and download a PDF report for medical records, sports documentation, or project archives.
Enter Your Centimeter Value
Type any length in centimeters — whole numbers or decimals both work. The calculator handles everything from sub-centimeter measurements to architectural spans, all with identical mathematical accuracy. Use the Quick Preset chips for the most common reference heights: 1 ft (30.48 cm), 100 cm, 5 ft (152.4 cm), 170 cm, 6 ft (182.88 cm), 200 cm. Results update live on every keystroke — no Convert button click required.
Set Decimal Precision
Choose between 0 and 8 decimal places using the input field or the precision slider. Use 0–1 for everyday height estimates and casual communication; 2–3 for medical records, clothing size charts, and architectural drawings; and 6–8 for precision engineering, manufacturing tolerances, and scientific measurements. The slider and number input stay in sync — adjust either and all results recalculate instantly.
Review the Full Breakdown
The hero result shows your decimal feet value. The third summary card displays the composite feet-and-inches format — the “5 ft 6.9 in” style used on U.S. driver’s licenses, medical records, and sports profiles. The full conversion grid adds total inches, meters, millimeters, yards, kilometers, and miles. The logarithmic bar chart shows the magnitude relationship across all five primary units simultaneously.
Download Your PDF Report
Click Download PDF for a professionally formatted 2-page report. Page 1 includes the branded header, hero result card, metric/imperial side-by-side breakdown table, six labeled summary cards (including composite ft & in), and chart snapshot. Page 2 adds a 16-row height reference table from 1 cm to 500 cm, with standard foot anchors labeled and the row nearest your input highlighted in blue — formatted for medical files, sports documentation, and construction project records.
Why 1 Foot = 30.48 Centimeters Exactly
The foot is one of the oldest units of measurement in human history — referenced in ancient Egyptian, Mesopotamian, and Roman systems — and standardized in England from the medieval period into the statute foot of 12 inches. The centimeter, by contrast, was introduced as part of the French metric system in 1793, defined as one-hundredth of a meter (itself defined as one ten-millionth of a quarter of Earth’s meridian). These two units evolved in entirely separate historical traditions, yet today their relationship is mathematically exact.
The precise metric definition of the inch (and therefore the foot) was fixed on July 1, 1959, when six English-speaking nations signed the International Yard and Pound Agreement. Under that treaty, 1 inch = 2.54 centimeters exactly. From this single defined constant, the entire chain of imperial lengths follows: 1 foot = 12 × 2.54 = 30.48 cm exactly. Every decimal place in 30.48 is mathematically derived, not measured.
Why some cm values produce repeating decimals in feet
Because 30.48 is not a divisor that works cleanly for all integers, dividing certain centimeter values by 30.48 produces a non-terminating repeating decimal. For example, 1 cm ÷ 30.48 = 0.032808398950131233… (repeating). This contrasts with the reverse direction: 1 ft × 30.48 = 30.48 cm exactly — a terminating decimal. In practical terms, this means no whole-number centimeter value — not even 100 cm or 1 m — converts to a perfectly clean decimal feet value. All displayed results are rounded at the presentation step; the calculation always uses the full exact constant.
For medical records and standard construction drawings, 2 decimal places in feet (e.g. 5.58 ft for 170 cm) provide sub-centimeter accuracy. The composite feet-and-inches format (5 ft 6.9 in) requires only 1 decimal place on the inches portion for millimeter-level precision. For precision manufacturing or scientific work, 6–8 decimal places cover all practical requirements.
What the Centimeters to Feet Converter Calculates
Every output is derived from the same single division — no intermediate rounding between units — giving you a complete metric and imperial breakdown, including the composite ft & in format, from one instant calculation.
Decimal Feet (Hero Result)
The primary conversion divides your centimeter value by the exact constant 30.48 to produce decimal feet. Decimal feet is the format used in U.S. engineering drawings, surveying, and construction specifications — where expressing a floor height as 8.202 ft is more precise and calculation-friendly than the mixed 8 ft 2.4 in format. It is also the format used by GPS elevation data in imperial mode and by most spreadsheet-based quantity surveying tools.
Composite Feet & Inches
The composite display — “5 ft 6.9 in” — is uniquely important for height communication in the United States. It is the format used on driver’s licenses, passport applications, medical BMI forms, sports team rosters, online dating profiles, and everyday conversation. The composite is calculated from the decimal feet result: the whole-number part gives feet; multiplying the decimal remainder by 12 gives the fractional inches. This is calculated directly from the cm input without any intermediate rounding.
Total Inches
Total inches (cm ÷ 2.54) expresses the entire measurement as a single inches value without any feet component — useful for fabric measurements, screen diagonal specifications, pipe and fitting dimensions, and U.S. clothing size charts (inseam length, chest circumference). A person who is 170 cm tall is 66.93 total inches, which is used in U.S. clothing sizing tables. The exact constant 2.54 is the foundation constant from which all other imperial-to-metric conversions in this calculator derive.
Meters & Millimeters
Meters (cm ÷ 100) and millimeters (cm × 10) are both exact conversions — clean powers of 10 within the metric system. Meters provide the baseline SI length unit for international scientific communication, architectural scale drawings, and cross-unit sanity-checking. Millimeters are essential for precision engineering, machining tolerances, print resolution, and woodworking measurements where sub-centimeter accuracy is required. Confirming that 170 cm = 1700 mm is an immediate data-entry check: wrong decimal placement becomes obvious.
Visual Bar Chart
A horizontal five-bar chart plots the numeric magnitude of your value across centimeters, feet, inches, yards, and meters in five distinct colors on a logarithmic scale. For a typical height of 170 cm, the total-inches value (66.93) and the centimeters value (170) are both visible alongside feet (5.58) and meters (1.70) — which would be invisible bars without log scaling. The log axis keeps all five units visually meaningful, with M/k suffixes preventing axis label crowding for large inputs like room dimensions or building heights.
2-Page PDF Report
Page 1 contains the branded header, hero result, metric/imperial side-by-side breakdown table, six summary cards (input cm, feet, total inches, meters, yards, composite ft & in), and chart snapshot. Page 2 contains a 16-row reference table from 1 cm to 500 cm with standard foot anchors labeled (1 ft = 30.48 cm, 5 ft = 152.4 cm, 6 ft = 182.88 cm) and the row nearest your input highlighted in blue. Formatted for medical height records, sports team documentation, architectural site reports, and manufacturing quality files.
Centimeters to Feet Conversion Chart — Common Heights
Every value uses the exact divisor 30.48. Highlighted rows mark exact foot values or medically / sportingly significant height benchmarks.
| Centimeters | Decimal Feet | Total Inches | Ft & In | Common Reference |
|---|---|---|---|---|
| 100 cm | 3.2808 ft | 39.37 in | 3 ft 3.4 in | Standard desk height — common reference |
| 120 cm | 3.9370 ft | 47.24 in | 3 ft 11.2 in | Average 5-year-old child height |
| 140 cm | 4.5932 ft | 55.12 in | 4 ft 7.1 in | Average 10-year-old height |
| 152.4 cm | 5.0000 ft | 60.00 in | 5 ft 0.0 in | Exactly 5 feet — defined constant |
| 155 cm | 5.0853 ft | 61.02 in | 5 ft 1.0 in | Short adult female benchmark |
| 160 cm | 5.2493 ft | 62.99 in | 5 ft 3.0 in | Near average adult female height globally |
| 163 cm | 5.3478 ft | 64.17 in | 5 ft 4.2 in | Average female height in many countries |
| 165 cm | 5.4134 ft | 64.96 in | 5 ft 5.0 in | Average U.S. adult female height |
| 170 cm | 5.5774 ft | 66.93 in | 5 ft 6.9 in | Common male/female height reference |
| 175 cm | 5.7415 ft | 68.90 in | 5 ft 8.9 in | Average male height in many countries |
| 177 cm | 5.8071 ft | 69.69 in | 5 ft 9.7 in | Average U.S. adult male height |
| 180 cm | 5.9055 ft | 70.87 in | 5 ft 10.9 in | Tall male benchmark |
| 182.88 cm | 6.0000 ft | 72.00 in | 6 ft 0.0 in | Exactly 6 feet — defined constant |
| 185 cm | 6.0696 ft | 72.83 in | 6 ft 0.8 in | NBA average height reference |
| 190 cm | 6.2336 ft | 74.80 in | 6 ft 2.8 in | Tall male — common NBA/volleyball height |
| 213.36 cm | 7.0000 ft | 84.00 in | 7 ft 0.0 in | Exactly 7 feet — NBA shot-blocker benchmark |
Highlighted rows mark exact foot values or clinically significant height benchmarks.
Converting Heights: Centimeters to Feet & Inches by Context
Height conversion appears across an unusually wide range of contexts — from a traveler’s passport application to an NBA draft profile, from a pediatric growth chart to a ceiling clearance specification. The tables below cover the most commonly needed height ranges in both centimeters and feet-and-inches, organized by context.
| Age / Stage | Typical cm | Ft & In |
|---|---|---|
| Newborn | 50 cm | 1 ft 7.7 in |
| Age 1 | 75 cm | 2 ft 5.5 in |
| Age 2 | 87 cm | 2 ft 10.3 in |
| Age 5 | 110 cm | 3 ft 7.3 in |
| Age 8 | 128 cm | 4 ft 2.4 in |
| Age 10 | 140 cm | 4 ft 7.1 in |
| Age 12 | 152 cm | 4 ft 11.8 in |
| Age 14 | 163 cm | 5 ft 4.2 in |
| Context | Typical cm | Ft & In |
|---|---|---|
| Average global female | 161 cm | 5 ft 3.4 in |
| Average U.S. female | 165 cm | 5 ft 5.0 in |
| Average global male | 171 cm | 5 ft 7.3 in |
| Average U.S. male | 177 cm | 5 ft 9.7 in |
| Average NFL player | 187 cm | 6 ft 1.6 in |
| Average NBA player | 200 cm | 6 ft 6.7 in |
| Doorway clearance (std) | 203 cm | 6 ft 8.0 in |
| Tallest recorded person | 272 cm | 8 ft 11.1 in |
Centimeters to Feet — Key Conversion Numbers
The Centimeters to Feet Converter Is Built For You If…
Whether you’re converting your passport height for a U.S. visa application, looking up an athlete’s metric height for an English-language sports profile, checking a furniture piece fits through a doorway, or reconciling metric construction drawings with imperial site measurements — this converter gives you an exact, downloadable result in seconds.
Healthcare & Medical Professionals
Patient records, BMI, growth charts & clinical documentationInternational patients and clinical studies record height in centimeters, while U.S. medical records, pharmaceutical dosing charts, and insurance forms often require feet and inches. A clinician admitting a patient whose height is recorded as 168 cm needs the exact ft & in equivalent for the EMR system. Pediatric growth charts in the U.S. display feet and inches, while WHO international growth standards use centimeters — requiring accurate, documented conversion at every international referral.
- Use 1–2 decimal places on inches in the composite format for clinical-grade accuracy
- Use the 170 cm preset as a quick adult height reference calibration
- Cross-check the meters output against WHO international growth chart values
- Export PDF to attach to patient referral packages, clinical trial data files, and insurance pre-authorization forms
Sports Professionals & Fans
Athlete profiles, scouting reports & international coverageInternational athletes competing in U.S. leagues, or U.S. athletes competing internationally, have their heights recorded in different units depending on the media context. An NBA scout evaluating a European prospect described as “208 cm” needs the exact ft & in equivalent (“6 ft 9.9 in”) for the team’s draft board. A soccer broadcaster covering a Premier League match for a U.S. audience needs quick cm-to-ft conversions for on-screen graphics. Accurate, consistently formatted height data matters for scouting credibility and broadcast professionalism.
- Use the composite Ft & In format for all U.S. sports documentation and broadcast graphics
- Use the 6 ft preset to anchor NBA/NFL height comparisons — 182.88 cm = 6 ft exactly
- Use 1 decimal place on the inches component for standard sports profile precision
- Export PDF for scouting report attachments, media guide production, and official registration forms
Architects, Designers & Construction Professionals
Drawings, specifications, clearances & international projectsInternational construction projects routinely require reconciling metric architectural drawings with imperial building codes, material supplier specifications, and site measurements. A European architect delivering drawings to a U.S. contractor needs every dimension expressed in both metric and imperial. Ceiling heights, door clearances, countertop heights, and structural member dimensions must be converted precisely — a rounding error in a door clearance specification can mean a custom door frame that does not fit. The PDF report provides the auditable, timestamped conversion record required for project files.
- Use 3–4 decimal places in feet for construction-grade precision — 1 decimal place in feet = ±3 cm
- Use the mm output for machining tolerances, hardware specifications, and joinery details
- Use the 200 cm preset for standard room-height checks against 6 ft 6 in and 7 ft building codes
- Export PDF to include in project handover packages, building permit submissions, and contractor briefing files
7 Tips for Accurate Centimeters to Feet Conversions
Dividing by 30.48 is simple, but a few habits prevent the errors that arise when metric measurements meet imperial documentation, medical records, and construction drawings.
Always Divide by 30.48 — Not 30 or 30.5
Using 30 introduces a 1.6% error — 1.6 cm per 100 cm. For a person who is 170 cm tall, that is a 2.7 cm error — over 1 inch — in the computed height. Using 30.5 introduces a 0.066% error — 0.66 mm per 100 cm — acceptable for casual estimates but not for medical or architectural records. The exact constant is 30.48. All other approximations trade speed for accuracy; use them only for mental estimates, never for documented professional output.
Understand the Composite Ft & In Format
The composite “5 ft 6.9 in” format requires two separate numbers and is easy to miscompute mentally. The correct method: divide cm by 30.48 to get total feet → take the whole-number part as feet → multiply the remaining decimal by 12 to get inches. Example: 170 cm ÷ 30.48 = 5.5774 ft → 5 feet → 0.5774 × 12 = 6.929 inches → 5 ft 6.9 in. A common error is dividing the original cm by 2.54 to get total inches, then dividing by 12 — this produces decimal feet, not composite ft & in. The calculator handles this correctly automatically.
Memorize Six Essential CM-to-Ft Anchors
For everyday use: 30.48 cm = exactly 1 ft · 60.96 cm = 2 ft · 91.44 cm = 3 ft · 152.4 cm = 5 ft · 182.88 cm = 6 ft · 213.36 cm = 7 ft. Knowing these lets you instantly bracket any result — if 170 cm comes back as 4.58 ft, you know the decimal is wrong (should be between 5 ft and 6 ft because 170 cm falls between 152.4 and 182.88 cm). These exact-foot values are straightforward to verify: just multiply the foot value by 30.48.
Match Precision to the Application
0 decimal places (e.g. “6 ft”) for casual conversation, clothing shopping, and social media; 1 decimal place for sports profiles, general medical records, and real estate listings; 2–3 decimal places for architectural specifications, clinical trial data, and furniture clearance calculations; 4+ decimal places for precision machining, surveying, and scientific measurement. The composite ft & in format should use 1 decimal place on inches for all practical purposes — 5 ft 6.9 in is more readable and equally precise for most uses than 5 ft 6.9291 in.
Use the Total Inches Output for Clothing and Fabric
U.S. clothing size systems and fabric tables often use total inches rather than composite ft & in — an inseam of 30 inches, a chest of 42 inches, a fabric roll of 60 inches wide. The total-inches output (cm ÷ 2.54) gives you this value directly without needing to convert from the feet result. A person with a 170 cm inseam measurement would have a 66.93-inch inseam in U.S. clothing sizing — which falls between the standard 30-inch and 32-inch trouser inseam lengths (76.2 cm and 81.28 cm respectively).
Use the Millimeters Output as a Sanity Check
For any cm input, the mm output (cm × 10) should always be a clean integer or simple decimal. 170 cm = 1700 mm exactly; 182.88 cm = 1828.8 mm exactly. If your cm input has a rogue decimal — say you typed 17.0 instead of 170 — the mm output will show 170 mm instead of 1700 mm, making the error immediately visible. This one-second check catches decimal-point placement errors before they propagate into official documentation or construction drawings.
Use the PDF as a Permanent Measurement Record
For professional deliverables — patient referral packages, athlete registration forms, building permit submissions, or manufacturing inspection records — download the PDF conversion report and attach it to the project file. It records the exact cm input, all converted outputs at your chosen precision, the conversion standard (1 ft = 30.48 cm, 1 in = 2.54 cm), the composite ft & in display, and the generation date. For any height or length measurement that may be questioned later, the PDF provides a timestamped, auditable conversion record with no ambiguity about the source value or the method used.
Centimeters to Feet Converter — Frequently Asked Questions
Everything you need to know about converting centimeters to feet and inches, the composite ft & in format, the 30.48 cm foot definition, average heights across countries, and how to apply this calculator accurately across healthcare, sports, construction, and everyday life.
To convert centimeters to feet, divide the centimeter value by 30.48. The formula is: feet = cm ÷ 30.48. For example, 170 cm ÷ 30.48 = 5.5774 feet.
To express the result in composite feet-and-inches format: take the whole-number part of the feet result as feet (5), then multiply the decimal remainder (0.5774) by 12 to get inches (6.929). So 170 cm = 5 ft 6.9 in. The constant 30.48 is exact — derived from 1 inch = 2.54 cm × 12 inches per foot — established by the International Yard and Pound Agreement of 1959. The calculator performs all of this automatically.
170 centimeters equals 5.5774 feet, or 5 feet 6.9 inches (5 ft 6.93 in more precisely). The calculation: 170 ÷ 30.48 = 5.57743 feet. Composite: 5 ft + 0.57743 × 12 = 5 ft 6.929 in.
170 cm is a very common adult height reference. It is slightly above the global average for women (around 161–163 cm) and below the global average for men (around 175–177 cm). In U.S. terms, 5 ft 7 in (170.18 cm) is a standard benchmark on medical BMI charts. Use the 170 cm preset chip in the calculator for the full breakdown across all units.
160 centimeters equals 5.2493 feet, or 5 feet 2.99 inches — commonly described as 5 feet 3 inches. The calculation: 160 ÷ 30.48 = 5.2493 feet. Composite: 5 ft + 0.2493 × 12 = 5 ft 2.99 in.
160 cm is near the global average height for adult women and is a widely cited reference in medical growth charts and clothing size specifications. Use the calculator with value 160 for the full breakdown.
180 centimeters equals 5.9055 feet, or 5 feet 10.87 inches — commonly described as just under 6 feet tall. The calculation: 180 ÷ 30.48 = 5.90551 feet. Composite: 5 ft + 0.90551 × 12 = 5 ft 10.866 in.
180 cm is a common adult male height reference. In the U.S., it falls between 5 ft 11 in (180.34 cm) and 5 ft 10 in (177.8 cm), closer to the latter. A person who is exactly 6 ft tall (182.88 cm) is 2.88 cm taller than 180 cm. Use the calculator with value 180 for the full breakdown.
5 feet equals exactly 152.4 centimeters. The calculation: 5 × 30.48 = 152.4 cm exactly — a terminating decimal because 30.48 is exact and terminating.
152.4 cm is used in clothing size charts, building code minimum ceiling heights, medical height records, and sporting eligibility criteria. The 5 ft preset chip (30.48 cm per foot × 5 = 152.4 cm exactly) is available in the calculator for the instant full breakdown in all units.
6 feet equals exactly 182.88 centimeters. The calculation: 6 × 30.48 = 182.88 cm exactly.
6 feet (182.88 cm) is a culturally significant height benchmark in the U.S. and U.K. — widely cited as a threshold for “tall” in everyday conversation, social media, and sports contexts. It is used in NBA draft analysis, military service height charts, and online height-comparison references. The 6 ft preset chip in the calculator gives the instant full breakdown. Note: 183 cm (a common rounding) is 183.0 cm, which is slightly above exactly 6 ft (182.88 cm) by 0.12 cm.
To convert centimeters to feet and inches: (1) divide cm by 30.48 to get total decimal feet; (2) take the whole-number part as your feet count; (3) multiply the decimal remainder by 12 to get the inches. Example: 175 cm → 175 ÷ 30.48 = 5.7415 ft → 5 feet → 0.7415 × 12 = 8.90 in → 5 ft 8.9 in.
The composite feet-and-inches format is standard on U.S. driver’s licenses, medical records, sports profiles, passport applications, and online dating platforms. The calculator produces this composite result automatically in the third summary card and in the full result grid, labeled “Ft & In.” The inches component is displayed to 1 decimal place by default, which provides millimeter-level precision.
The metric equivalent of the foot was fixed by the International Yard and Pound Agreement of 1959, signed by the United States, United Kingdom, Canada, Australia, New Zealand, and South Africa. Under that treaty, 1 inch = 2.54 cm exactly. Since 1 foot = 12 inches: 1 foot = 12 × 2.54 = 30.48 cm exactly.
The full exact chain: 1 inch = 25.4 mm = 2.54 cm → 1 foot = 12 inches = 304.8 mm = 30.48 cm → 1 yard = 3 feet = 914.4 mm = 91.44 cm → 1 mile = 1760 yards = 160,934.4 cm. Every link is mathematically exact. The 2.54 cm inch definition is recognized by the U.S. NIST and the International Bureau of Weights and Measures (BIPM) as the authoritative standard.
The foot is an imperial unit used primarily in the United States and informally for height in the United Kingdom — equal to 12 inches = 30.48 cm. The centimeter is an SI (metric) unit used globally — equal to one-hundredth of a meter. A foot is a larger unit: 1 foot = 30.48 cm, while 1 cm = 0.0328 feet.
For human heights, a practical observation: heights described in feet sound taller than they are to metric-system users. “Six foot” (182.88 cm) is considered tall in the U.S., but “183 cm” is the same thing expressed in metric — which might seem unremarkably close to 180 cm to a metric-system reader. The same person, different framing. Neither unit is more accurate; the conversion is mathematically exact and precise in both directions.
The United States is the primary country where feet and inches are used for everyday height communication — on driver’s licenses, medical records, sports profiles, and casual conversation. The United Kingdom commonly uses feet and inches for personal height in everyday life, even though the official measurement system is metric and hospital records use centimeters.
All other countries — including all of continental Europe, Canada (officially metric, though feet/inches are still heard informally for heights), Australia, Asia, Africa, and Latin America — use centimeters as the standard unit for height in official and medical records. International medical research, the WHO, and scientific publications universally use centimeters for height and weight measurements.
The calculator uses the exact relationship 1 foot = 30.48 cm with double-precision floating-point arithmetic, accurate to approximately 15 significant digits. The display rounds only to your chosen decimal precision — the underlying calculation always uses the full exact constant.
Because dividing by 30.48 can produce non-terminating repeating decimals for some cm values, a small rounding difference will appear in displayed results — but only at the display step. For medical records and sports documentation, 1–2 decimal places on feet provide sub-centimeter accuracy. For architectural drawings and precision manufacturing, 3–4 decimal places provide sub-millimeter accuracy. The composite ft & in result is derived from the full precision feet value, not from a rounded intermediate result. The downloadable PDF records all outputs, your precision setting, and the conversion standard for complete documentation.
Accuracy note: The HomeExpertly Centimeters to Feet Converter uses the exact international conversion relationship of 1 inch = 2.54 centimeters (therefore 1 foot = 30.48 cm exactly), as established by the 1959 International Yard and Pound Agreement and recognized by the U.S. National Institute of Standards and Technology (NIST) and the International Bureau of Weights and Measures (BIPM). All calculations are mathematically precise to the decimal precision you select (up to 8 places). Because dividing certain centimeter values by 30.48 produces non-terminating repeating decimals, displayed results are rounded only at the display step — the underlying calculation always uses the exact constant. The composite feet-and-inches result is derived from the full-precision feet value without intermediate rounding. Results are for informational and reference purposes only. For applications where measurement accuracy is critical — including but not limited to medical diagnosis, clinical dosing, architectural construction, manufacturing tolerances, legal documentation, building permits, passport applications, or sporting eligibility certification — always verify your conversions independently using calibrated measuring instruments or authoritative reference documents. HomeExpertly is not responsible for any consequences arising from the use of these conversions, including measurement errors in medical, construction, legal, or sporting contexts. When in doubt, use the highest available precision and consult a licensed professional for measurement-critical applications.