Paint
Use the coverage number listed on your paint can for the best estimate.
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Home mathPaint Calculator
Estimate paint quantity from area, coats, and coverage rate.
Estimate paint from total area, number of coats, and extra waste allowance.
Paint areaCoatsCoverage per literWaste allowance (%)
This tool is for quick reference. Double-check important decisions with your own source data.
Calculation resultEnter values to see the result
Popular examples
48 square meters with 2 coatsEstimate with 10% extraPaint needed for 48 m² of living-room walls with 2 coatsRepaint amount for a 4.2 m by 3.6 m roomWalls and ceiling after excluding 3 m² of openingsCheck whether 10 liters is enough for office wallsSingle-coat paint estimate for furniture refreshHow much paint for a full hallway repaintInclude a 10% buffer for DIY paintingEstimate paint for a balcony wall and ceiling
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wallcoatbucket
Home math
A paint calculator for estimating paint before you buy
Enter area, number of coats, and coverage rate to estimate paint needed and a rounded purchase amount.
Use it before painting a room, office, or furniture so you can estimate material needs and avoid buying too little.
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Real examples
Paint Calculator
Paint needed for 48 m² of living-room walls with 2 coatsRepaint amount for a 4.2 m by 3.6 m roomWalls and ceiling after excluding 3 m² of openingsCheck whether 10 liters is enough for office wallsSingle-coat paint estimate for furniture refreshHow much paint for a full hallway repaintInclude a 10% buffer for DIY paintingEstimate paint for a balcony wall and ceiling
Paint
Why a paint calculator is useful
Paint
Exclude windows and doors if you want a tighter wall-only estimate.
Paint
Two coats are common, so check the coats input before calculating.
Example inputs
Useful examples for this calculator
48 square meters, 2 coats, 10 per literRoom repaint estimateFurniture refresh estimate
Modes
Paint Calculator
Area based
Estimate paint from total area, number of coats, and extra waste allowance.
Room walls
Use room dimensions to estimate wall paint.
Walls + ceiling
Estimate paint for room walls and ceiling together.
FAQ
Paint Calculator
Do area and coverage need the same unit?
Yes. The calculator does not convert units automatically, so use the same measurement system for both values.
Why is the recommended purchase rounded up?
Because paint is usually purchased in whole containers, rounding up gives you a safer estimate for buying.