100 m² with 2 coats at 12 m²/L
(100 × 2) ÷ 12 ≈ 16.7 litres of paint.
Paint calculator
Estimate litres of paint from area, coats and coverage.
Calculation details
Change the values to update the result instantly.
How it works
Estimate litres of paint from area, coats and coverage. This free estimate is for planning purposes. Verify financial and tax decisions with a qualified professional.
How much paint you need
The calculator multiplies area by coats and divides by coverage: litres = (area × coats) ÷ coverage per litre.
Why coverage per litre matters
Coverage varies by paint and surface. Check the tin's stated m²/L and adjust the value if it differs from the default.
Rounding up for real purchases
Round the estimated litres up to the nearest full can size when buying paint, to avoid running short mid-job.
Frequently asked questions
How many litres of paint do I need?
Multiply the area by the number of coats, then divide by the coverage per litre stated on the tin.
What if my paint has a different coverage rate?
Replace the default coverage value with the m²/L figure printed on your paint tin for a more accurate estimate.
What does the paint calculator calculate?
Estimate litres of paint from area, coats and coverage.
Is this calculator free to use?
Yes. You can change the values and calculate as often as you need without creating an account.
How accurate is the result?
The result is an estimate based on the values you enter. Rates, fees, taxes and personal circumstances can change the final amount.