Verify the inputs
Measure or document each input. If a value is only an estimate, record its source and test a conservative alternative.
Construction/ CALCULATOR
Paint quantity and can estimate
Convert measured paintable area, coats and the product’s declared coverage into litres and whole cans.
FROM ESTIMATE TO ACTION
Use the result, not just the number.
Keep the calculation traceable
Save the input link or copied result together with the date, units and assumptions. A number without its inputs cannot be checked later.
Confirm the decision
Compare the estimate with the related guide, current product data and requirements that apply at your location before buying or building.
Inputs to verify
- Measured paintable area (m²)
- Add walls and ceilings that receive the same paint system.
- Doors, windows and excluded areas (m²)
- Subtract only surfaces that will not receive this coating.
- Finish coats (coats)
- Use the specified number of finish coats; count a separate primer separately.
- Declared coverage per litre (m²/L/coat)
- Use the label value for this surface, application method and product.
- Application allowance (%)
- A visible allowance for texture, handling and touch-up, not hidden extra area.
- Can size (L/can)
- Enter an available package size for whole-can rounding.