How To Calculate Paint Per Square Meter

Paint Calculator: Calculate Paint per Square Meter

Calculating paint per square meter is crucial for ensuring you have the right amount of paint for your project. Whether you’re painting a room, a fence, or an entire house, accurate calculation saves you time, money, and unnecessary trips to the store.

  1. Enter the width and height of the area you want to paint.
  2. Select the coverage of the paint you’re using (m²/l).
  3. Click the “Calculate” button.

The formula used in this calculator is:

Paint needed (liters) = Area (m²) / Coverage (m²/l)

The area is calculated as:

Area (m²) = Width (m) × Height (m)

Paint Coverage Comparison
Paint Brand Coverage (m²/l)
Brand A 10
Brand B 12
Brand C 8
Paint Types and Coverage
Paint Type Coverage (m²/l)
Emulsion 10-12
Gloss 8-10
Eggshell 10-12
  • Always buy a little extra paint for touch-ups and mistakes.
  • Consider the surface you’re painting. Some surfaces require more paint.
  • Check the paint can’s label for specific coverage information.
What if my area isn’t a perfect rectangle?

Divide the area into rectangles, calculate each, and add the results together.

Can I use this calculator for exterior painting?

Yes, but consider the surface type and any additional coats needed.

A room being painted Paint cans and brushes

UK Government guide to painting and decorating

Clemson University’s guide to painting exterior surfaces

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