About the Length Converter
What is the Length Converter?
This length converter changes any distance between metric and imperial units using the exact international definitions.
Enter a value, choose the from and to units, and see the result along with the equivalent in every other unit.
How to use the Length Converter
- Value (sample: 1)
- From (sample: Metre (m))
- To (sample: Foot (ft))
- Press Convert (results also refresh as you type). The result card shows the Converted Value, along with Result, Conversion factor and Reverse factor.
Formula used
Result = Value × (metres per from-unit) ÷ (metres per to-unit)
- 1 inch = 2.54 cm exactly
- 1 foot = 0.3048 m
- 1 mile = 1.609344 km
Every length is converted to metres first, then to the target unit.
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Value | 1 |
| From | Metre (m) |
| To | Foot (ft) |
| Result | Value |
|---|---|
| Converted Value | 3.28084 ft |
| Result | 1 m = 3.28084 ft |
| Conversion factor | 1 m = 3.2808399 ft |
| Reverse factor | 1 ft = 0.3048 m |
Common length definitions
| Unit | In metres | Definition |
|---|---|---|
| 1 inch | 0.0254 | Exactly 2.54 cm (1959 agreement) |
| 1 foot | 0.3048 | 12 inches |
| 1 yard | 0.9144 | 3 feet |
| 1 mile | 1,609.344 | 5,280 feet |
| 1 nautical mile | 1,852 | Used at sea and in aviation |
Tips for using the Length Converter
- For height in feet and inches, use the feet to metre converter, which accepts both parts.
- Nautical miles (1,852 m) are used for sea and air travel; statute miles for roads.