Paint Coverage Calculator
Calculate paint needed from wall area, coats, coverage per liter, waste, can size, and can price.
Runs locally in your browser. This tool does not upload your input.
Paint project
Results
- Painted area
- 84 m2
- Liters with waste
- 9.24 L
- Cans needed
- 3
- Estimated cost
- $267.00
How to estimate paint coverage
Use this tool to estimate liters, cans, and cost for a wall painting project.
What this tool helps with
It multiplies area by number of coats, divides by paint coverage, adds waste, and rounds cans up.
Inputs to prepare
- Prepare wall area, coats, coverage per liter, waste percent, can size, and can price.
- The result shows painted area, liters with waste, cans needed, and estimated cost.
- Coverage varies by surface, color, primer, and paint type, so check the paint label before buying.
How to use it well
- Start with the sample values, then replace them with your own numbers or text.
- Check the result and adjust assumptions before relying on it.
- Use it as a planning aid, then confirm important outputs in the source system or real-world context.
Privacy
This tool runs locally in your browser. The values you type are used only to update the result on the page.
FAQ
Should I include doors and windows?
Subtract them from the wall area if you want a tighter estimate.
Why add waste?
Waste covers roller loss, touch-ups, porous surfaces, and small measuring errors.
Why are cans rounded up?
The estimate rounds to whole cans because paint is bought by container size.