CALCULATORJOINT-COMPOUND-CALCULATORCALCULATE · DECIDE · ACT
Drywall & Paint Calculators · reviewed September 6, 2026
Drywall Mud & Joint Compound Calculator
Estimate drywall mud or ready-mixed joint compound in gallons and pails from drywall square footage, coverage rate and extra allowance.
Ready.
Enter your measurements and calculate.
Enter your measurements and calculate.
Worked example
Example
At roughly 110 sq ft per gallon, 1,000 sq ft plus 10% allowance is about 10 gallons, or three 4.5-gallon pails.
References
Sources & assumptions
Last reviewed September 1, 2026. Defaults are starting points; product-specific inputs are editable wherever coverage varies.
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FAQ
Common questions
Why is coverage adjustable?
Finishing methods and products vary.
Does this include texture?
No. Add texture material separately.
Is joint compound the same as drywall mud?
In everyday use, “drywall mud” commonly refers to joint compound.