Free Paint Coverage Calculator — HTML Tool
HTML
Try it here
If the tool does not load here, use the download link: paint-coverage-calculator.html.
What this is
Who it's for: Freelancers who need a paint coverage calculator litres
A paint coverage calculator for painters and homeowners, in HTML format, that works out litres of paint needed for a room area and number of coats.
Free in full — download it and use it on your own freelance work.
The paint coverage calculator is a free single-file HTML tool that works out litres of paint needed for a room area and number of coats for painters and homeowners.
The paint coverage calculator is a free single-file HTML tool that works out litres of paint needed for a room area and number of coats for painters and homeowners. Paint buying usually fails in one of two ways: too little, which means a second trip mid-job and a visible shade difference between batches, or far too much, which is money sitting in tins. The calculator avoids both by working from the paintable area and the number of coats, using 10 square metres per litre per coat as the default, or your tin label value if it differs.
How to use it. Open paint-coverage-calculator.html in a browser, enter the paintable area, enter the number of coats, and click Calculate. Use the coverage figure from your tin label when it differs from the default, because paints do vary and the label is the manufacturer's own number for that product. Buy the rounded-up quantity the tool shows, not the exact figure, since a part tin cannot be bought and running out mid-coat is the expensive mistake. Calculate primer separately as one coat, because the tool does not include primer, and treating primer as free paint is how primer gets forgotten until the walls are already being painted.
Worked example. A homeowner is painting a room with 40 square metres of paintable wall area and plans two coats. At the default coverage of 10 square metres per litre per coat, one coat needs 4 litres and two coats need 8 litres, so she buys 10 litres in whole tins rather than exactly 8, keeping the spare litre for touch-ups. Had she guessed instead, she might have bought 5 litres, finished the first coat, and discovered mid-second-coat that the room needed nearly twice that, with the shop closed and the job half done. The calculation takes a minute; the second trip it prevents takes an evening.
The tool is free in full, with no checkout and no account. If a download fails or a file arrives damaged, email tariqshahzad88@gmail.com and the file will be re-sent, and if a product does not work as described it will be fixed or replaced within 7 days.
Questions
Q: What does paint coverage calculator litres do?
A: A paint coverage calculator for painters and homeowners, in HTML format, that works out litres of paint needed for a room area and number of coats.
Q: What files do I get?
A: The download is paint-coverage-calculator.html.
Q: What do I need to open or use it?
A: Any modern web browser. No internet needed after download.
Q: What coverage should I use?
A: 10 square metres per litre per coat is the default; use your tin label value if different.
Q: Does it include primer?
A: No, calculate primer separately as one coat.
User manual
- Open paint-coverage-calculator.html in a browser
- Enter the paintable area
- Enter the number of coats
- Click Calculate
- Buy the rounded-up quantity
Requirements
Any modern web browser. No internet needed after download.
Download details
Format: HTML
What is inside: A single HTML file with a working calculator: area, coats and coverage inputs, with litres and can-count outputs.
Download free — paint-coverage-calculator.html (1.8 KB)
- README.txt — 440 B
- paint-coverage-calculator.html — 1.8 KB
Questions
What does paint coverage calculator litres do?
A paint coverage calculator for painters and homeowners, in HTML format, that works out litres of paint needed for a room area and number of coats.
What files do I get?
The download is paint-coverage-calculator.html.
What do I need to open or use it?
Any modern web browser. No internet needed after download.
What coverage should I use?
10 square metres per litre per coat is the default; use your tin label value if different.
Does it include primer?
No, calculate primer separately as one coat.