---
title: "Kilometers to Miles — km to mi converter"
description: "1 kilometer = 0.62137 miles. Convert kilometers to miles with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/km-to-miles/
site: "At One Place"
---

# Kilometers to miles

**1 kilometer in miles: 1 km = 0.62137 mi**

mi = km × 0.6213711922

To convert kilometers to miles, multiply by 0.6213711922. The table below gives the values people look up most often, and the converter works for any number.

## Kilometers to miles table

*Common kilometer values converted to miles.*

| Kilometers | Miles |
| --- | --- |
| 1 km | 0.62137 |
| 2 km | 1.242742 |
| 3 km | 1.864114 |
| 4 km | 2.485485 |
| 5 km | 3.106856 |
| 10 km | 6.213712 |
| 15 km | 9.320568 |
| 20 km | 12.42742 |
| 25 km | 15.53428 |
| 30 km | 18.64114 |
| 40 km | 24.85485 |
| 50 km | 31.06856 |
| 75 km | 46.60284 |
| 100 km | 62.13712 |
| 250 km | 155.3428 |
| 500 km | 310.6856 |
| 1,000 km | 621.3712 |

## How the conversion works

The relationship is mi = km × 0.6213711922. 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 miles are in one kilometer?

One kilometer equals 0.62137 miles. mi = km × 0.6213711922.

### How do you convert kilometers to miles?

Use mi = km × 0.6213711922. So 10 km is 6.213712 mi.

### How many kilometers are in one mile?

One mile equals 1.609344 kilometers, which is the reverse of the conversion above.

## Related pages

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

## 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/)