Convert square millimeter to square kilometer
Please provide values below to convert square millimeter [mm^2] to square kilometer [km^2], or Convert square kilometer to square millimeter.
How to Convert Square Millimeter to Square Kilometer
1 mm^2 = 1e-12 km^2
Example: convert 15 mm^2 to km^2:
15 mm^2 = 15 × 1e-12 km^2 = 1.5e-11 km^2
Square Millimeter to Square Kilometer Conversion Table
| square millimeter | square kilometer |
|---|
Square Millimeter
A square millimeter (mm²) is a unit of area equal to the area of a square with sides measuring one millimeter.
History/Origin
The square millimeter has been used in scientific and engineering contexts for precise measurement of small areas, especially in fields like electronics and material science, as a subdivision of the metric system established in the 19th century.
Current Use
It is commonly used today in fields such as electronics, manufacturing, and scientific research to measure small surface areas, including the cross-sectional areas of wires and components.
Square Kilometer
A square kilometer is a unit of area equal to the area of a square with sides measuring one kilometer each.
History/Origin
The square kilometer has been used as a standard unit of area measurement in the metric system since its adoption, primarily for measuring large land areas such as countries and regions.
Current Use
It is commonly used in geography, urban planning, and environmental studies to quantify land and area sizes, especially in contexts requiring large-scale measurements.