The square millimeter (mm²) is used for precision measurements in engineering and manufacturing. It's ideal for measuring tiny surfaces like electronic components (a microSD card is about 150 mm²) or paper thickness (standard printer paper is ~62,370 mm² per sheet). This unit is essential in microelectronics and quality control. The square kilometer (km²) measures large territories and geographic areas. Central Park in New York covers 3.41 km², while Paris occupies about 105 km². This unit is essential for urban planning, environmental studies, and country-size comparisons.
To convert between Square Millimeter (mm²) and Square Kilometer (km²), use the following formulas:
1 Square Millimeter (mm²) = 1e-12 Square Kilometer (km²)
1 Square Kilometer (km²) = 1000000000000 Square Millimeter (mm²)
10 mm² = 10 * 1e-12 km² = 1e-11 km²
50 mm² = 50 * 1e-12 km² = 5e-11 km²
100 mm² = 100 * 1e-12 km² = 1e-10 km²
500 mm² = 500 * 1e-12 km² = 5e-10 km²
1000 mm² = 1000 * 1e-12 km² = 1e-9 km²
| Square Millimeter (mm²) | Square Kilometer (km²) |
|---|---|
| 1 mm² | 1e-12 km² |
| 10 mm² | 1e-11 km² |
| 100 mm² | 1e-10 km² |
| 500 mm² | 5e-10 km² |
| 1000 mm² | 1e-9 km² |