Convert square millimeters (mm²) to square kilometers (km²) with formulas, examples, and conversion tables.
To convert 1 square millimeters to square kilometers, we divide by 1e+12 because one square kilometer equals exactly 1e+12 square millimeters.
Since there are 1e+12 square millimeters in every square kilometer, we divide our value by this factor:
So 1 square millimeters = 1e-12 square kilometers.
To convert square millimeters to square kilometers, divide the value by 1e+12.
1 square kilometer = 1e+12 square millimeters
| Square Millimeters | Square Kilometers |
|---|---|
| 1 mm² | 1e-12 km² |
| 2 mm² | 2e-12 km² |
| 5 mm² | 5e-12 km² |
| 10 mm² | 1e-11 km² |
| 20 mm² | 2e-11 km² |
| 25 mm² | 2.5e-11 km² |
| 50 mm² | 5e-11 km² |
| 100 mm² | 1e-10 km² |
| 250 mm² | 2.5e-10 km² |
| 500 mm² | 5e-10 km² |
| 1000 mm² | 1e-9 km² |
| Unit | 1 mm² = |
|---|---|
| Square Millimeters to Square Kilometers | 1e-12 km² |
| Square Millimeters to Hectares | 1e-10 ha |
| Square Millimeters to Square Meters | 0.000001 m² |
| Square Millimeters to Square Centimeters | 0.01 cm² |
| Square Millimeters to Square Miles | 3.861e-13 mi² |
| Square Millimeters to Acres | 2.4711e-10 ac |
| Square Millimeters to Square Yards | 0.0000012 yd² |
| Square Millimeters to Square Feet | 0.00001076 ft² |
| Square Millimeters to Square Inches | 0.00155 in² |
| Square Millimeters to Ares | 1e-8 a |
| Square Millimeters to Barns | 1e+22 b |