---
title: "Length converter — every unit"
description: "Convert between every length unit: meter, kilometer, centimeter, millimeter, mile and more. Tables, exact formulas and a calculator."
url: https://atoneplace.net/convert/length/
site: "At One Place"
---

# Length conversions

Every length unit on the site, and every conversion between them. Each page shows a full table, the exact formula and a live calculator.

## All length units

*Every length unit and its size relative to the base unit.*

| Unit | Symbol | In meter |
| --- | --- | --- |
| meter | m | 1 |
| kilometer | km | 1,000 |
| centimeter | cm | 0.01 |
| millimeter | mm | 0.001 |
| micrometer | µm | 0.000001 |
| nanometer | nm | 1 × 10^-9 |
| mile | mi | 1,609.344 |
| yard | yd | 0.9144 |
| foot | ft | 0.3048 |
| inch | in | 0.0254 |
| nautical mile | nmi | 1,852 |
| light-year | ly | 9.460730473 × 10^15 |
| astronomical unit | AU | 149,597,870,700 |
| furlong | fur | 201.168 |
| fathom | ftm | 1.8288 |
| hand | hh | 0.1016 |

## Common conversions

- [Meters to Kilometers](https://atoneplace.net/convert/meters-to-km/)
- [Meters to Centimeters](https://atoneplace.net/convert/meters-to-cm/)
- [Meters to Millimeters](https://atoneplace.net/convert/meters-to-mm/)
- [Meters to Miles](https://atoneplace.net/convert/meters-to-miles/)
- [Meters to Yards](https://atoneplace.net/convert/meters-to-yards/)
- [Meters to Feet](https://atoneplace.net/convert/meters-to-feet/)
- [Meters to Inches](https://atoneplace.net/convert/meters-to-inches/)
- [Kilometers to Meters](https://atoneplace.net/convert/km-to-meters/)
- [Kilometers to Centimeters](https://atoneplace.net/convert/km-to-cm/)
- [Kilometers to Millimeters](https://atoneplace.net/convert/km-to-mm/)
- [Kilometers to Miles](https://atoneplace.net/convert/km-to-miles/)
- [Kilometers to Yards](https://atoneplace.net/convert/km-to-yards/)
- [Kilometers to Feet](https://atoneplace.net/convert/km-to-feet/)
- [Kilometers to Inches](https://atoneplace.net/convert/km-to-inches/)
- [Centimeters to Meters](https://atoneplace.net/convert/cm-to-meters/)
- [Centimeters to Kilometers](https://atoneplace.net/convert/cm-to-km/)
- [Centimeters to Millimeters](https://atoneplace.net/convert/cm-to-mm/)
- [Centimeters to Miles](https://atoneplace.net/convert/cm-to-miles/)
- [Centimeters to Yards](https://atoneplace.net/convert/cm-to-yards/)
- [Centimeters to Feet](https://atoneplace.net/convert/cm-to-feet/)
- [Centimeters to Inches](https://atoneplace.net/convert/cm-to-inches/)
- [Millimeters to Meters](https://atoneplace.net/convert/mm-to-meters/)
- [Millimeters to Kilometers](https://atoneplace.net/convert/mm-to-km/)
- [Millimeters to Centimeters](https://atoneplace.net/convert/mm-to-cm/)
- [Millimeters to Miles](https://atoneplace.net/convert/mm-to-miles/)
- [Millimeters to Yards](https://atoneplace.net/convert/mm-to-yards/)
- [Millimeters to Feet](https://atoneplace.net/convert/mm-to-feet/)
- [Millimeters to Inches](https://atoneplace.net/convert/mm-to-inches/)
- [Miles to Meters](https://atoneplace.net/convert/miles-to-meters/)
- [Miles to Kilometers](https://atoneplace.net/convert/miles-to-km/)
- [Miles to Centimeters](https://atoneplace.net/convert/miles-to-cm/)
- [Miles to Millimeters](https://atoneplace.net/convert/miles-to-mm/)
- [Miles to Yards](https://atoneplace.net/convert/miles-to-yards/)
- [Miles to Feet](https://atoneplace.net/convert/miles-to-feet/)
- [Miles to Inches](https://atoneplace.net/convert/miles-to-inches/)
- [Yards to Meters](https://atoneplace.net/convert/yards-to-meters/)
- [Yards to Kilometers](https://atoneplace.net/convert/yards-to-km/)
- [Yards to Centimeters](https://atoneplace.net/convert/yards-to-cm/)
- [Yards to Millimeters](https://atoneplace.net/convert/yards-to-mm/)
- [Yards to Miles](https://atoneplace.net/convert/yards-to-miles/)
- [Yards to Feet](https://atoneplace.net/convert/yards-to-feet/)
- [Yards to Inches](https://atoneplace.net/convert/yards-to-inches/)
- [Feet to Meters](https://atoneplace.net/convert/feet-to-meters/)
- [Feet to Kilometers](https://atoneplace.net/convert/feet-to-km/)
- [Feet to Centimeters](https://atoneplace.net/convert/feet-to-cm/)
- [Feet to Millimeters](https://atoneplace.net/convert/feet-to-mm/)
- [Feet to Miles](https://atoneplace.net/convert/feet-to-miles/)
- [Feet to Yards](https://atoneplace.net/convert/feet-to-yards/)
- [Feet to Inches](https://atoneplace.net/convert/feet-to-inches/)
- [Inches to Meters](https://atoneplace.net/convert/inches-to-meters/)
- [Inches to Kilometers](https://atoneplace.net/convert/inches-to-km/)
- [Inches to Centimeters](https://atoneplace.net/convert/inches-to-cm/)
- [Inches to Millimeters](https://atoneplace.net/convert/inches-to-mm/)
- [Inches to Miles](https://atoneplace.net/convert/inches-to-miles/)
- [Inches to Yards](https://atoneplace.net/convert/inches-to-yards/)
- [Inches to Feet](https://atoneplace.net/convert/inches-to-feet/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)