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Joint Compound Calculator

Estimate drywall mud by finish level and coat — embed, filler, finish, and skim — in gallons and boxes or buckets, with tape, U.S. pricing, a finish-level comparison, and a downloadable PDF.

Mud coverage is a rule of thumb — heavier joints, textures, and sanding loss all change it. Prices use 2024-2025 U.S. figures. For planning purposes only.

Area & Finish
1 Drywall Area
ft
×
ft
ft
x
−21 sf
−15 sf
sq ft
Walls + ceiling − openings, times rooms. Edit to enter a known area.
10%
Covers spillage, sanding loss, and touch-ups
2 Finish & Coverage
gal / 100 sf
Set by the finish level — raise it for heavy joints or thick texture
3 Product & Cost
gal
$
$
$/ sq ft
Finishing only ~$0.40-0.90 per sq ft. Set 0 for materials only.
Compound Estimate
Containers To Buy
—
Enter your area to begin
Drywall Area —
Compound Gallons —
Containers —
Material & Cost Breakdown
Drywall area —
Joint compound —
TOTAL ESTIMATE—
Tape Rolls —
Compound Cost —
Cost / sq ft —
Compound By Coat
Gallons of mud per finishing coat
Finish Level Comparison — Your Area
Finish LevelGal / 100 sfGallonsContainers

Compound for your 710 sq ft (with extra) in 4.5-gal containers. Higher levels use more mud.