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AIPULY

Paint Calculator

Work out how much paint a room needs from wall area, coats and door/window deductions.

Estimate the litres of paint and cost needed to paint a room, accounting for doors, windows and multiple coats.

How to use it

  1. 1Enter the wall dimensions or total wall area.
  2. 2Deduct the area of doors and windows.
  3. 3Set the number of coats and paint coverage.
  4. 4Enter the price per litre to see total cost.

Room details

Enter the wall size, openings and paint coverage.

m
m
m²
m²/L
Currency

Result

Litres needed

5.0 L

Wall area (net)
24.8 m²
Coats
2
Total cost
€89.28

Round up litres to the nearest tin size available from your supplier.

Frequently asked questions

What coverage rate should I use?
Most paints cover 10–12 m² per litre per coat; check the tin for the exact figure.
Does it round up to whole litres?
Yes, the litres figure is rounded up so you buy enough paint.
Can I calculate for multiple rooms?
Run the calculator once per room and add the totals together.

Something wrong with this tool or its numbers?

Report an issue

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