Paint Coverage Calculator
Use this paint coverage calculator to estimate paint quantity for walls or other surfaces. Enter surface dimensions, coverage rate, coats and openings and review estimated area and paint volume or tins.
Paint needed
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Wall area to cover —
In US gallons —
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How it works
Paint needed = wall area × coats ÷ coverage rate per liter/gallonHow to use the Paint Coverage Calculator
Start by entering surface dimensions, coverage rate, coats and openings. Keep the units consistent and check that each value belongs to the same question.
The result gives estimated area and paint volume or tins. Coverage varies with surface texture, colour and application method. Use it as a guide and check any instructions, rules or professional advice that apply.
Frequently Asked Questions
What does this paint coverage calculator calculate?
It gives estimated area and paint volume or tins. Coverage varies with surface texture, colour and application method.
What information should I enter?
Enter surface dimensions, coverage rate, coats and openings. Use the same units throughout so the result is easier to understand.
Should I include more than one coat?
Yes. Enter the number of coats you plan to apply so the estimate reflects the project.