Length Converter
Convert meters, feet, miles, inches, and more
Conversion Formula
Target = Value × (From Ratio / To Ratio)
Length conversions use the formula: Target = Value × (From Unit Ratio / To Unit Ratio). To convert meters to feet: multiply by 1 / 0.3048 ≈ 3.28084.
Length conversions are crucial in engineering, construction, travel, and science. This converter easily handles everything from nanometers to nautical miles.
Whether you're converting your height from feet to centimeters, measuring a room in meters versus feet, or planning a road trip in miles versus kilometers, this tool has you covered.
All Supported Length Units
| Unit | Symbol | Definition |
|---|---|---|
| Meter | m | The SI base unit of length, defined by the speed of light in a vacuum. |
| Kilometer | km | One thousand meters, used for measuring geographic distances. |
| Decimeter | dm | One-tenth of a meter, used in scientific measurements. |
| Centimeter | cm | One-hundredth of a meter, common in everyday and medical measurements. |
| Millimeter | mm | One-thousandth of a meter, used for precision engineering. |
| Micrometer | µm | One-millionth of a meter, used in microscopy and semiconductor manufacturing. |
| Nanometer | nm | One-billionth of a meter, used in nanotechnology and molecular biology. |
| Mile | mi | The imperial unit of distance equal to 5,280 feet or 1,760 yards. |
| Yard | yd | The imperial unit of length equal to 3 feet, used in US and UK. |
| Foot | ft | The imperial unit of length equal to 12 inches, used in construction. |
| Inch | in | The imperial unit of length equal to 1/12 of a foot. |
| Nautical Mile | nmi | A maritime and aviation distance unit equal to one minute of latitude. |
| Light Year | ly | The distance light travels in one year, used for interstellar distances. |
| Astronomical Unit | AU | The average Earth-Sun distance, used for solar system measurements. |
| Parsec | pc | A unit equal to 3.26 light-years, used in professional astronomy. |
Common Length Conversions
| From | To | Value |
|---|---|---|
| 1 m | ft | 3.281 |
| 1 m | in | 39.370 |
| 1 m | yd | 1.094 |
| 1 km | mi | 0.621 |
| 1 mi | km | 1.609 |
| 1 ft | m | 0.305 |
| 1 in | cm | 2.54 |
| 1 nmi | km | 1.852 |
Frequently Asked Questions
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Supported Length Units
Complete listing of available length units in our converter.