Paint Calculator
Estimate how many gallons of paint and primer a room needs, the rough cost, and how long it should take, with deductions for doors and windows.
Enter the room size, how many coats you plan, and the paint type, since flat and matte cover more area per gallon than gloss. The calculator deducts door and window area, multiplies by coats, and rounds up to whole gallons.
| Primer | |
| Estimated paint cost | |
| Time estimate |
Estimate only. Coverage assumes smooth, primed walls. Rough or porous surfaces and dark color changes use more.