Millimetres to Metres Converter
Convert millimetres (mm) to metres (m) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Result
- Metres
- 0.001 m
How to use the millimetres to metres converter
- Enter the millimetres (mm).
- The results update as you type, or press Calculate.
- Read the metres first, then the supporting figures below it.
Formula
Metres = millimetres × 0.001
Worked example
For example, with these inputs:
- Millimetres (mm): 1
the calculator returns:
- Metres: 0.001 m
Millimetres to Metres table
| Millimetres | Metres |
|---|---|
| 1 mm | 0.001 m |
| 2 mm | 0.002 m |
| 5 mm | 0.005 m |
| 10 mm | 0.01 m |
| 20 mm | 0.02 m |
| 25 mm | 0.025 m |
| 50 mm | 0.05 m |
| 100 mm | 0.1 m |
| 250 mm | 0.25 m |
| 500 mm | 0.5 m |
| 1,000 mm | 1 m |
About this conversion
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
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.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Frequently asked questions
How many metres are in one millimetre?
1 mm = 0.001 m.
How do I convert mm to m?
Metres = millimetres × 0.001.