Square Meter Calculator — Area from Length and Width

Calculate square meters by multiplying length by width. Use the reverse mode only when the area and one dimension are known.

Square meters = length × width.
m
m
Result
ExampleResult
5 m × 4 m20 m²
10 m × 3 m30 m²
20 m² ÷ 4 m5 m
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Square meter formula

Area in m² = length in meters × width in meters. For example, 5 m × 4 m = 20 m².

Meters and square meters are different

A single length in meters cannot be converted to square meters without a second dimension. If your search is specifically about converting meters to m² with a known width, use the meters to square meters calculator.