Paint Calculator
How many litres of paint to cover a wall, accounting for two coats and the typical 10 m²/L spread rate.
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How many litres of paint to cover a wall, accounting for two coats and the typical 10 m²/L spread rate.
How to use Paint Calculator
- Open the toolNo signup and nothing to install; it works as soon as the page loads.
- Set “Wall length (m)”
- Set “Wall height (m)”
- Set “Coats”
- Read the resultChange any input and the result is recalculated immediately.
Worked example with the defaults
- PAINT NEEDED (2 COATS) · 71.5 m² of paintable area
- 7.2 L
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Paint Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- Does this account for windows?
- No. Subtract roughly 1.5 m² per standard window and 2 m² per door for a more accurate figure.