Area

mm² to m² conversion

Convert square millimetre (mm²) to square metre (m²). Area sets heat-transfer surface, flow cross-sections, and footprints, in m² or ft².

1 mm² = 1e-6 m²

Formula

To convert square millimetre to square metre, multiply the mm² value by 1e-6. To go the other way, divide by 1e-6 (or multiply by 1000000).

mm² to m² conversion table

mm²
11e-6
22e-6
55e-6
101e-5
252.5e-5
505e-5
1001e-4
2500.00025
5000.0005
10000.001

Used in practice

Exchanger surface is quoted in m² or ft²; orifice and nozzle areas in mm² or in².

Flow area scales with the square of diameter, so doubling a pipe's bore quadruples its area.

Worked example. A area of 1e+7 mm² is 10 m².

Frequently asked questions

How do you convert square millimetre to square metre?

Multiply the value in mm² by 1e-6 to get m². For example, 10 mm² = 1e-5 m².

What is 1 mm² in m²?

1 mm² equals 1e-6 m².

Where is this conversion used?

Exchanger surface is quoted in m² or ft²; orifice and nozzle areas in mm² or in².

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