To convert square millimeters to square meters, multiply the value by 1 × 10⁻⁶. To go the other way, multiply square meters by 1,000,000 to get square millimeters.
| Square Millimeters (mm²) | Square Meters (m²) |
|---|---|
| 1 mm² | 1 × 10⁻⁶ m² |
| 2 mm² | 2 × 10⁻⁶ m² |
| 5 mm² | 5 × 10⁻⁶ m² |
| 10 mm² | 1 × 10⁻⁵ m² |
| 20 mm² | 2 × 10⁻⁵ m² |
| 50 mm² | 5 × 10⁻⁵ m² |
| 100 mm² | 0.0001 m² |
| 500 mm² | 0.0005 m² |
| 1,000 mm² | 0.001 m² |
Square millimeter (mm²). A square millimeter is the area of a square with 1 mm sides, used for small parts, wire and pipe cross-sections.
Square meter (m²). The square meter is the SI unit of area, the area of a square with 1 m sides.
There are 1 × 10⁻⁶ square meters in one square millimeter.
Multiply the number of square millimeters by 1 × 10⁻⁶. For example, 10 square millimeters equal 1 × 10⁻⁵ square meters.
One square meter equals 1,000,000 square millimeters.