Painting Calculators
Buy the right amount of paint — no half-empty cans, no mid-job runs to the store. Our paint calculators estimate gallons or liters from your room size, number of coats, and openings. Use the tools and guides below to plan interior and exterior painting projects.
Painting calculators
What you can estimate
- Gallons or liters of paint by room
- Coverage for one, two, or three coats
- Wall area minus doors and windows
- Paint cost for the project