Paint Calculator
Calculate exactly how much paint you need to cover a room. Enter room dimensions, ceiling height, and subtract doors and windows. Choose number of coats and enter your paint coverage rate to get liters needed and number of 4-liter cans to buy.
Paint Calculator
8.7 L
Paint Needed
52.0 m²
Wall Area
104.0 m²
Total Area (incl. coats)
3
4L Cans Needed
How to Use Paint Calculator
- 1Enter room length, width, height
- 2Add doors and windows count
- 3Choose number of coats
- 4View liters and paint cans needed
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Paint Calculator runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
No server uploadNo account required100% freeWorks on all devices
Frequently Asked Questions
How much area does 1 liter of paint cover?
Most paints cover 10–15 m² per liter on smooth surfaces. On rough surfaces or porous walls, coverage is lower — around 8–10 m²/L.
Why Use This Tool?
Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed
Tags
paint calculatorhow much paintroom paintpaint coverageliters of paint
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