Building tool
Paint Calculator
Estimate gallons of primer and paint from wall area, coats, and coverage.
Runs in your browserResult
- Paintable wall area
- 344 sq ft
- Coated area
- 756.8 sq ft
- Paint needed
- 2.16 gal
- Whole gallons to buy
- 3
- Primer gallons
- 1
Porous surfaces, dramatic color changes, sprayer loss, and product coverage can change the result.
How to use this paint calculator
- Measure the project, enter the dimensions in the units shown, and add the waste, spacing, coverage, or material settings that apply.
- Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
- Change one input at a time to compare another case, then copy or save the result you plan to use.
About this paint calculator
Use the Paint Calculator to estimate gallons of primer and paint from wall area, coats, and coverage. The result changes when you adjust the values or options above.
You can also use it to compare results after changing one input.
Example
Enter the wall lengths, ceiling height, doors, windows, coats, and paint coverage to estimate gallons without counting openings as painted area.
Common uses
- → estimate gallons of primer and paint from wall area, coats, and coverage
- → compare results after changing one input
- → save an estimate for planning or comparison