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Paint Coverage Calculator
Gallons or liters of paint needed for a room
Runs locally in your browser
Parameters
Results
- Paint needed
- 2.15 gal (8.1 L)
- Wall area (paintable)
- 376 sq ft
- Suggested cans (1 gal)
- 3
How it works
Estimates paint volume for room walls with door/window openings and multiple coats.
Who it's for: Homeowners and painters buying the right amount of paint.
Wall area = 2 × (L + W) × H minus openings.
Uses gallons from coverage rating; also shows liters.
How to use
- Enter room dimensions, coats, and coverage per gallon.
- Adjust door/window counts, then round up cans.
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