Room area calculator
List rooms with sizes and get a totalled area schedule.
How it is calculated
Each room = length × width (or an area you enter). Total net area = sum of rooms. Built-up area estimate = net area × (1 + allowance for walls), using the percentage you set.
Check locally: Definitions of carpet, built-up and super built-up area differ between regions and contracts. The wall allowance is an estimate.
Questions
Is this carpet area or built-up area?
The room total is the net (carpet-style) area. The built-up figure adds the wall allowance you set; definitions vary by region.
Is anything I enter saved or sent?
No. The calculation runs in your browser. Nothing you type is sent anywhere. You can copy the result, print it or download it as a CSV.