CM to Metres Converter
Convert centimetres to metres — a hundred to the metre. Results update as you type; exact factors shown.
One centimetre is 0.01 metres — see the exact factor, not a rounded rule of thumb.
How the cm to metres converter works
Every length is converted through the metre, the SI base unit of length. The inch has been defined as exactly 25.4 mm since the 1959 international yard and pound agreement, so a foot is exactly 0.3048 m, a yard 0.9144 m and a statute mile 1,609.344 m. The nautical mile is 1,852 m by international definition.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common length conversions
| From | To | Units |
|---|---|---|
| 1 cm | 0.01 m | centimetre to metres |
| 10 cm | 0.1 m | centimetres to metres |
| 50 cm | 0.5 m | centimetres to metres |
| 100 cm | 1 m | centimetres to metres |
| 150 cm | 1.5 m | centimetres to metres |
| 175 cm | 1.75 m | centimetres to metres |
| 200 cm | 2 m | centimetres to metres |
| 250 cm | 2.5 m | centimetres to metres |
| 500 cm | 5 m | centimetres to metres |
| 1,000 cm | 10 m | centimetres to metres |
| 2,500 cm | 25 m | centimetres to metres |
| 10,000 cm | 100 m | centimetres to metres |
Units in this converter and their exact factors
| Unit | Symbol | One unit in metres |
|---|---|---|
| millimetre | mm | 0.001 metre |
| centimetre | cm | 0.01 metre |
| metre | m | 1 metre |
| kilometre | km | 1,000 metre |
| inch | in | 0.0254 metre |
| foot | ft | 0.3048 metre |
| yard | yd | 0.9144 metre |
| mile | mi | 1,609.344 metre |
| nautical mile | nmi | 1,852 metre |
FAQFrequently asked questions about length conversion
How many cm in a metre?
A hundred.
What is 175 cm in metres?
1.75 m.
How do I convert quickly?
Move the decimal point two places left.
Which is used for heights?
Centimetres, since whole numbers are precise enough for a person.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.