Estimate paint quantity, gallons required and project cost.
| Wall Area | - |
| Ceiling Area | - |
| Total Paint Area | - |
| Gallons Needed | - |
| Estimated Cost | - |
This calculator estimates wall and ceiling area, subtracts standard-sized doors (21 sq ft each) and windows (15 sq ft each), applies a waste factor, and divides by the selected paint coverage to estimate the number of gallons required.
Two coats are commonly recommended for most interior painting projects.
Yes. The ceiling area is included in the estimate.