Paint Calculator (How Much Paint Do I Need?)
Calculator ToolsCalculate litres of paint for walls and ceiling
Embed this tool on your websiteFree
- Choose how tall the frame should be.
- Press Copy code.
- Paste it into your page, blog, WordPress or Notion HTML block.
The tool runs inside your visitor's browser, nothing is uploaded, and a small "Powered by ToolCloak" line stays under it. The second line (script) is optional: it makes the frame fit the tool's height.
Similar tools you may like
History
All history →Paint Calculator (How Much Paint Do I Need?) — at a glance
Buy the right amount of paint — not too little, not too much.
How to use it — step by step
Room length, width and height, plus doors, windows and coats.
Choose units
Feet or metres.
Enter the room size
Length, width, height.
Add doors, windows, coats
These are subtracted from the wall area.
Read the amount
Litres needed and what to buy.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
What is paint coverage?+
How much area one litre covers in one coat. It is printed on the tin, usually 90–120 sq ft per litre.
Are doors and windows included?+
They are subtracted using standard sizes.
Should I buy extra?+
Yes, about 10% for touch-ups and uneven walls.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.