---
title: "Miles to Kilometers — mi to km converter"
description: "1 mile = 1.609344 kilometers. Convert miles to kilometers with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/miles-to-km/
site: "At One Place"
---

# Miles to kilometers

**1 mile in kilometers: 1 mi = 1.609344 km**

km = mi × 1.609344

To convert miles to kilometers, multiply by 1.609344. The table below gives the values people look up most often, and the converter works for any number.

## Miles to kilometers table

*Common mile values converted to kilometers.*

| Miles | Kilometers |
| --- | --- |
| 1 mi | 1.609344 |
| 2 mi | 3.218688 |
| 3 mi | 4.828032 |
| 4 mi | 6.437376 |
| 5 mi | 8.04672 |
| 10 mi | 16.09344 |
| 15 mi | 24.14016 |
| 20 mi | 32.18688 |
| 25 mi | 40.2336 |
| 30 mi | 48.28032 |
| 40 mi | 64.37376 |
| 50 mi | 80.4672 |
| 75 mi | 120.7008 |
| 100 mi | 160.9344 |
| 250 mi | 402.336 |
| 500 mi | 804.672 |
| 1,000 mi | 1,609.344 |

## How the conversion works

The relationship is km = mi × 1.609344. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many kilometers are in one mile?

One mile equals 1.609344 kilometers. km = mi × 1.609344.

### How do you convert miles to kilometers?

Use km = mi × 1.609344. So 10 mi is 16.09344 km.

### How many miles are in one kilometer?

One kilometer equals 0.62137 miles, which is the reverse of the conversion above.

## Related pages

- [Kilometers to Miles](https://atoneplace.net/convert/km-to-miles/)
- [Miles to Meters](https://atoneplace.net/convert/miles-to-meters/)
- [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/)

## 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)
- Calculated on this page — At One Place (/about/)