Convert Millimetre to Metre
Turn Millimetres into Metres in an instant. Type a value below to get an accurate mm → m result, with the formula and a quick-reference table.
1 mm = 0.001 m
Quick answer: 1 Millimetre = 0.001 Metre
Millimetre to Metre conversion table
| Millimetre (mm) | Metre (m) |
|---|---|
| 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 |
| 50 mm | 0.05 m |
| 100 mm | 0.1 m |
| 500 mm | 0.5 m |
| 1,000 mm | 1 m |
How to convert Millimetre to Metre
To convert Millimetres to Metres, multiply the value by 0.001.
- Take your measurement in Millimetres.
- Multiply it by 0.001 — the number of Metres in one Millimetre.
- The result is the same amount, expressed in Metres.
To go the other way, multiply Metres by 1,000 — or simply divide by 0.001.
For example, a sharp pencil tip is about 0.5 mm, which is 0.0005 m.
About Millimetre and Metre
A millimetre is one-thousandth of a metre (1/1000 m) — the smallest line printed on a standard ruler. It is the everyday unit for fine measurements such as engineering tolerances, screw threads, paper thickness and rainfall.
The metre is the SI base unit of length, defined as the distance light travels in 1/299,792,458 of a second. It underpins the whole metric system and is used for rooms, fabric, sports fields and scientific work worldwide.
Both the Millimetre and the Metre are metric units, so converting between them is just a change of scale: one Millimetre equals 0.001 Metres, and the Metre is the larger unit.
Other length conversions
Frequently asked questions
How many Metres are in a Millimetre?
1 Millimetre equals 0.001 Metre (mm → m). To convert any amount, multiply the number of Millimetres by 0.001.
How do I convert Millimetre to Metre?
Enter the number of Millimetres in the converter above and read the result in Metres. It applies the exact mm → m factor instantly, with full precision.
Is the Millimetre to Metre converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined length factors and full floating-point precision, then rounds the display to a clean, readable number.