Square millimeter (mm²)
The area of a 1 mm × 1 mm square.
Result
1 square millimeter = 0.01 square centimeters
Square millimeter at a glance
| Unit name | Square millimeter (plural: square millimeters) |
|---|---|
| Symbol | mm² |
| Quantity measured | Area |
| Measurement system | Metric |
| Also known as | sq mm, mm2, square millimetre |
| Definition exact? | Yes — exact by definition |
1 square millimeter in other area units
| Unit | 1 mm² equals |
|---|---|
| Square centimeter | 0.01 cm² |
| Square meter | 0.000001 m² |
| Square kilometer | 1 × 10⁻¹² km² |
| Square inch | 0.001550003 in² |
| Square foot | 0.000010764 ft² |
| Square yard | 0.000001196 yd² |
| Square mile | 3.86102159 × 10⁻¹³ mi² |
| Acre | 2.47105381 × 10⁻¹⁰ ac |
| Hectare | 1 × 10⁻¹⁰ ha |
| Are | 1 × 10⁻⁸ a |
| Square nautical mile | 2.9155335 × 10⁻¹³ sq nmi |
| Barn | 1 × 10²² b |
Frequently asked questions
- What is a square millimeter?
- The area of a 1 mm × 1 mm square.
- What is the symbol for the square millimeter?
- The symbol for the square millimeter is mm². It measures area.
- How many square centimeters are in a square millimeter?
- 1 square millimeter = 0.01 square centimeters.
- How many square meters are in a square millimeter?
- 1 square millimeter = 0.000001 square meters.
- How many square inches are in a square millimeter?
- 1 square millimeter = 0.001550003 square inches.