Paritian

Construction & DIY

Room Wall Area Calculator

Wall area, floor area, perimeter and volume of a rectangular room.

Results

Area 36.60 m²
Area 15.75 m²
Perimeter 16.00 m
Volume 40.95 m³
The shape, to scale
Room Wall Area CalculatorRoom Wall Area Calculator: l = 4.50 m, w = 3.50 m, h = 2.60 ml = 4.50 mh = 2.60 mw = 3.50 m

What this tool does

One measurement session gives you every figure a decorating or heating estimate needs. Subtract the doors and windows to get the surface you will actually paint, tile or paper.

Formula

A = perimeter × height − openings

Variables

SymbolMeaningUnit
lLengthm
wWidthm
hHeightm
oArea of doors and windowsm²
WAAream²
FAAream²
PEPerimeterm
VOVolumem³

Worked example

  • Length4.5 m
  • Width3.5 m
  • Height2.6 m
  • Area of doors and windows5 m²
  • Area36.60 m²
  • Area15.75 m²
  • Perimeter16.00 m
  • Volume40.95 m³

Limitations

  • Mixing units is the most common source of error. Convert every input to the units shown next to each field before calculating.