Paint Calculator
Find out how much paint you need — enter wall dimensions and coats to get liters required.
🔄 Updated October 13, 2026
About the Paint Calculator
Planning a build or renovation? The Paint Calculator gives fast, reliable planning estimates. Find out how much paint you need — enter wall dimensions and coats to get liters required. Figures include a small waste allowance where relevant. For bigger projects, compare with the Concrete Calculator and Gravel Calculator.
How to use this calculator
- Enter your numbers in the fields above.
- Results update instantly — no button to press, no page reload.
- Adjust the inputs to compare scenarios with the Paint Calculator.
Keep exploring: Concrete Calculator · Tile Calculator · Brick Calculator · Square Footage Calculator
Frequently asked questions
How much area does 1 liter of paint cover?
About 100 sq ft per coat on smooth walls. Rough or textured walls need more.
Should I subtract doors and windows?
Yes — measure them and subtract, or just buy 10% extra to be safe.
How many coats do I need?
Two coats is standard for good coverage and color depth.
Related tools
Concrete CalculatorEstimate concrete volume for slabs, footings and walls in cubic feet and cubic meters,… Tile CalculatorCalculate floor or wall tiles needed from room size and tile dimensions, including wastage. Brick CalculatorEstimate bricks, cement and sand for walls from length, height and wall thickness. Square Footage CalculatorCalculate the area of any room or plot in square feet and square meters… Mulch CalculatorCalculate mulch needed for garden beds in cubic yards and bags from area and… Gravel CalculatorEstimate gravel in cubic yards and tons for driveways, paths and landscaping.