Paint Calculator
Estimate paint quantity and cost from room dimensions.
Your project
ft
ft
ft
Estimate
$53–$105
- Wall area
- 302 sq ft
- Paint needed
- 1.73 gal
- Recommended purchase
- 1.75 gal
Methodology
Wall area is calculated from room perimeter × wall height, minus a standard deduction for doors and windows, then divided by average paint coverage (350 sq ft per gallon) and multiplied by your number of coats.