Paint calculator
Enter the size of your rooms, doors and windows to see how many litres and buckets of paint you need for two coats.
Free, no sign-upRuns in your browser
For one room, add up all four sides.
You need
Paint0 Lfor 2 coats
Area to paint0 m²after doors and windows
20 L buckets0or a mix of sizes
4 L gallons0if you buy small tins only
A door is counted as 1.9 m² and a window as 1.4 m². New plaster soaks up more paint, so use a primer or allow a third coat.
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How much does one litre of paint cover?
Most emulsion paints cover about 10 square metres per litre for each coat. Check the tin and change it in the calculator.
Is it free?
Yes. This tool is free to use, with no sign-up.
Is what I type stored?
No. Everything happens in your browser and nothing is sent to our servers.
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