Feet to Centimetres Converter
Convert feet to centimetres — one foot is exactly 30.48 cm. Results update as you type; exact factors shown.
One foot is 30.48 centimetres — see the exact factor, not a rounded rule of thumb.
How the feet to centimetres 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 ft | 30.48 cm | foot to centimetres |
| 2 ft | 60.96 cm | feet to centimetres |
| 3 ft | 91.44 cm | feet to centimetres |
| 4 ft | 121.92 cm | feet to centimetres |
| 5 ft | 152.4 cm | feet to centimetres |
| 5.5 ft | 167.64 cm | feet to centimetres |
| 6 ft | 182.88 cm | feet to centimetres |
| 6.5 ft | 198.12 cm | feet to centimetres |
| 7 ft | 213.36 cm | feet to centimetres |
| 8 ft | 243.84 cm | feet to centimetres |
| 10 ft | 304.8 cm | feet to centimetres |
| 20 ft | 609.6 cm | feet to centimetres |
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 foot?
30.48 exactly.
How tall is 6 feet in cm?
182.88 cm.
What is 5 foot 10 in cm?
177.8 cm — convert the inches first, so 5.833 feet.
Why is the foot exactly 30.48 cm?
It follows from the 1959 definition of the inch as exactly 2.54 cm.
How do I convert feet and inches together?
Multiply the feet by 30.48 and the inches by 2.54, then add.
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.