What is a Square Millimeter (mm²)?
A square millimeter (mm²) is a unit of area equal to a square with sides of one millimeter.
Definition
Symbol
mm²
Category
Area
System
Metric
1 {unit} = {value} {otherUnit}
1 Square Millimeter = 0.01 Square Centimeter (cm²)
1 Square Millimeter = 0.000001 Square Meter (m²)
1 Square Millimeter = 1e-12 Square Kilometer (km²)
1 Square Millimeter = 0.00155 Square Inch (in²)
1 Square Millimeter = 0.0000107639 Square Foot (ft²)
Common Uses
- Cross-section of wires
- Precision engineering
- Small component sizing