Construction/Home calculator
Paint Calculator
Estimate paint needed from wall area, coverage per liter, and number of coats.
Formula
Paint quantity formula
Paint coverage varies by surface texture, primer, color change, and application method.
Paint needed = wall area x coats / coverage per liter
80 sq m at 10 sq m per liter for 2 coats needs about 16 liters.
FAQs
Should I include doors and windows?+
For a closer estimate, subtract large openings from wall area.
Should I buy extra paint?+
A small allowance helps cover touch-ups, waste, and uneven surfaces.
How does the Paint Calculator calculate the result?+
It uses the Paint quantity formula: Paint needed = wall area x coats / coverage per liter. 80 sq m at 10 sq m per liter for 2 coats needs about 16 liters.
What information do I need to use the Paint Calculator?+
Estimate paint needed from wall area, coverage per liter, and number of coats.
How accurate is the Paint Calculator?+
Paint Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Paint Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Construction/Home guide
How to use the Paint Calculator
Estimate paint needed from wall area, coverage per liter, and number of coats. The page also explains the paint quantity formula and shows a practical example: 80 sq m at 10 sq m per liter for 2 coats needs about 16 liters.
- 1
Enter your details
Enter wall area, coverage per liter, and number of coats, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the paint quantity formula: Paint needed = wall area x coats / coverage per liter.
- 3
Compare scenarios
Change one or more inputs to see how they affect the paint Calculator result before you use the estimate.
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