Square millimetres to Square metres Converter
Convert square millimetres (mm²) to square metres (m²) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Result
- Square metres
- 1.000000e-6 m²
How to use the square millimetres to square metres converter
- Enter the square millimetres (mm²).
- The results update as you type, or press Calculate.
- Read the square metres first, then the supporting figures below it.
Formula
Square metres = square millimetres × 1.000000e-06
Worked example
For example, with these inputs:
- Square millimetres (mm²): 1
the calculator returns:
- Square metres: 1.000000e-6 m²
Square millimetres to Square metres table
| Square millimetres | Square metres |
|---|---|
| 1 mm² | 1.000000e-6 m² |
| 2 mm² | 2.000000e-6 m² |
| 5 mm² | 5.000000e-6 m² |
| 10 mm² | 1.000000e-5 m² |
| 20 mm² | 2.000000e-5 m² |
| 25 mm² | 2.500000e-5 m² |
| 50 mm² | 5.000000e-5 m² |
| 100 mm² | 1.000000e-4 m² |
| 250 mm² | 0.00025 m² |
| 500 mm² | 0.0005 m² |
| 1,000 mm² | 0.001 m² |
About this conversion
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many square metres are in one square millimetre?
1 mm² = 1.000000e-6 m².
How do I convert mm² to m²?
Square metres = square millimetres × 1.000000e-06.