Square Metre Calculator: Work Out Area in m²

How to work it out

Measure the length and width of each area in metres.
Add each room or section as its own area. L-shaped rooms work well as two rectangles.
Read off the square metres. To work it out yourself, multiply length by width.
Enter a price per square metre to see the total cost.

These are common starting points. Your site, climate and supplier may call for something different.

A room 4.2 m by 3.5 m is 4.2 × 3.5 = 14.7 m². Add a hallway of 3 m by 1.1 m, which is 3.3 m², and the total is 18 m².

Enter centimetres as metres with a decimal point, so 350 cm is 3.5. To turn square centimetres into square metres, divide by 10,000.

How do I calculate square metres?

Multiply the length by the width, both in metres. For several rooms, work out each one and add them up.

How do I convert square feet to square metres?

Divide square feet by 10.764, or multiply by 0.093. The calculator shows both at once.

How do I work out square metres for flooring?

Measure the room and add about 10% for cuts. Divide by the square metres in one pack and round up. The flooring calculator does this for you.

Doing this job for a customer? Turn your numbers into a free written estimate on QuoteToPaid.