What is the Square Footage Calculator?
Calculate the area of a room or plot in square feet, square metres and katha.
Enter length and width and the Square Footage Calculator returns area, in square metres, in katha, in decimal and perimeter. Results update as you type, and nothing you enter leaves your device.
How it is calculated
Area = length × width
How to use it
- Enter length in ft.
- Enter width in ft.
- Read area in the results panel. It updates as you type.
- Change any value to compare scenarios, or use Share to send the result as a link.
Worked example
Common questions
What formula does the Square Footage Calculator use?
It uses: Area = length × width.
What do I need to use the Square Footage Calculator?
You need length and width. Sensible starting values are filled in so you can see how it works straight away.
Is the Square Footage Calculator free, and is my data stored?
It is free with no sign-up. The calculation runs in your browser, so the values you enter are not sent to or stored on our server.