Square Kilometer to Square Millimeter
1 Square Kilometer = 1.0000e+12 Square Millimeter
Conversion Formula
To convert Square Kilometer to Square Millimeter, multiply the value by 1.0000e+12.
Square Kilometer × 1.0000e+12 = Square Millimeter
Quick Reference
| km² | mm² |
|---|---|
| 1 | 1.0000e+12 |
| 5 | 5.0000e+12 |
| 10 | 1.0000e+13 |
| 25 | 2.5000e+13 |
| 50 | 5.0000e+13 |
| 100 | 1.0000e+14 |
| 500 | 5.0000e+14 |
| 1000 | 1.0000e+15 |
What is Square Kilometer?
The square kilometer (symbol: km²) is an SI unit of area.
It is defined as the area of a square with sides of one kilometer in length. One square kilometer is equal to 1,000,000 square meters or about 100 hectares.
Common Uses
The square kilometer is used to measure the area of large features, such as cities, islands, and entire countries. It is also common in geography and urban planning.
What is Square Millimeter?
The square millimeter (symbol: mm²) is an SI unit of area.
It is defined as the area of a square with sides of one millimeter in length. One square millimeter is equal to one-millionth of a square meter (0.000001 m²).
Common Uses
Square millimeters are used to measure very small areas, such as the cross-sectional area of electrical wires, precise mechanical parts, or small biological samples.
How many square millimeter are in a square kilometer?
There are 1.0000e+12 square millimeter in 1 square kilometer.