OhMyCalc

Paint Room Calculator

Calculate wall area for painting a room minus doors and windows.

How to Use the Paint Room Calculator

  1. Enter the required values.
  2. Click Calculate to see the results.
  3. Review the output values.
  4. Adjust inputs as needed.

Schnellreferenz

VonNach
Small room (3×3×2.5 m)~28 m² paint area
Medium room (4×4×2.5 m)~37 m²
Large room (5×5×2.7 m)~51 m²
Std door deduction1.6 m²
Std window deduction1.5 m²
1 L paint~10–14 m²

Anwendungsfälle

Formel

Wall area = 2(L+W) × H. Deductions = Doors × 1.6 + Windows × 1.5 m². Paint = Wall − Deductions.

Häufig gestellte Fragen

How to use?
Enter the data and click the calculate button.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.