Square Meters Calculator
Enter the length and width in metres to instantly calculate the area in square meters (m²), plus square feet, square yards, and acres.
How to calculate square meters
Measure length and width in metres and multiply them. If your measurements are in centimetres, divide each by 100 to get metres first. To convert from square feet, multiply by 0.092903.
Square Meters = Length (m) × Width (m)
Worked example
A room that is 5 metres long and 4 metres wide.
- Length = 5 m
- Width = 4 m
- Area = 5 × 4
Result: 20 square meters
Frequently asked questions
How do I calculate square meters?
Measure the length and width of the area in metres, then multiply them together. A room 5 m by 4 m is 5 × 4 = 20 square meters.
How do I convert square feet to square meters?
Multiply the number of square feet by 0.092903 to get square meters.
How many square meters is a 3x4 metre room?
A room 3 metres by 4 metres is 12 square meters (3 × 4 = 12).
How do I measure square meters for an irregular room?
Split the floor into rectangles, calculate each one's area in square meters, then add the results together for the total.