Square Millimeter (mm²) to Square Kilometer (km²) Conversion
Convert square millimeter (mm²) to square kilometer (km²) with precision. Enter values and get instant conversions.
Area Converter
1 Square Millimeter (mm²) = 0 Square Kilometer (km²)
Common Conversions
About Square Millimeter (mm²) to Square Kilometer (km²) Conversion
Converting from Square Millimeter (mm²) to Square Kilometer (km²) is a common area conversion.
This online converter allows you to easily convert between square millimeter (mm²) and square kilometer (km²), providing instant results with high precision.
Square Millimeter (mm²)
Definition: A square millimeter (symbol: mm²) is a metric unit of area equal to a square with 1 millimeter sides. One square millimeter equals 0.000001 square meters or about 0.00155 square inches.
History: Developed alongside the metric system to provide precise measurements for small areas. Its importance grew with industrialization and miniaturization in technology.
Current use: Essential in engineering for measuring cross-sectional areas of wires, material thicknesses, and microelectronic components. Used in printing (dot sizes) and medical fields (blood vessel cross-sections).
Square Kilometer (km²)
Definition: A square kilometer (symbol: km²) is a multiple of the square meter, equal to the area of a square with 1 kilometer (1000 meters) on each side. One square kilometer equals 1,000,000 square meters or approximately 0.3861 square miles.
History: Developed as part of the metric system's decimal-based scaling, the square kilometer became particularly useful for geographical measurements. Its adoption grew with the metric system's international acceptance in the 19th and 20th centuries.
Current use: Primarily used to measure large land areas such as cities, national parks, and countries. Commonly appears in geographical surveys, urban planning, and environmental studies. Most world maps and atlases use square kilometers, though some US publications still use square miles.
Details
- From: Square Millimeter (mm²)
- To: Square Kilometer (km²)
- Formula: 1 mm² = 0.0000000000 km²
- Example: 25 mm² = 0.0000000000 km²
Square Millimeter (mm²) to Square Kilometer (km²) Conversion Table
| Square Millimeter (mm²) | Square Kilometer (km²) |
|---|---|
| 0.01 | 0 |
| 0.1 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 5 | 0 |
| 10 | 0 |
| 20 | 0 |
| 50 | 0 |
| 100 | 1e-10 |
| 1000 | 1e-9 |