Quick Room Paint Estimator
Instantly estimate how much paint you need for a room.
Just enter the room dimensions.
Paint Needed
Wall area = perimeter × height, minus ~50 sq ft (5 m²) for doors/windows.
Coverage: 1 gallon covers ~350 sq ft (32 m²) per coat. 1 liter covers ~10 m² (108 sq ft).
Both imperial (feet/gallons) and metric (meters/liters) are shown in results.