Room Area Calculator

Measuring Rooms Accurately

Tools You Need

A laser distance measurer gives accurate readings to within 1–2mm and makes solo measurement of large rooms easy. A traditional tape measure works fine but is harder to use solo in larger rooms.

Dealing with Alcoves and Bay Windows

For rooms with alcoves, bay windows, or chimney breasts, calculate the main rectangle then add or subtract the additional sections. Always measure at the widest and longest points.

Why Area Matters

Floor area drives flooring and carpet costs. Wall area drives paint and wallpaper costs. Perimeter drives skirting board, coving, and door frame trim costs. Getting this right avoids costly under or over-ordering.