# Miles to Kilometers Converter

Convert miles to kilometers instantly. Also shows meters, nautical miles, and feet. Exact factor: 1 mile = 1.60934 km. Common distance reference table.

## What this calculates

Convert any distance from miles to kilometers using the exact conversion factor: 1 mile = 1.609344 km. This converter also displays meters, nautical miles, and feet for comprehensive distance reference.

## Inputs

- **Distance in Miles** (mi) — min 0 — Enter a distance in miles.

## Outputs

- **Kilometers** (km) — Distance in kilometers.
- **Meters** (m) — Distance in meters.
- **Nautical Miles** (nmi) — Distance in nautical miles.
- **Feet** (ft) — Distance in feet.

## Details

The mile is a unit of distance in the imperial and US customary systems, primarily used in the United States, United Kingdom, and a few other countries. The kilometer is the standard metric unit for longer distances used worldwide. The exact conversion is: 1 mile = 1.609344 kilometers (based on the international definition where 1 mile = 5280 feet and 1 foot = 0.3048 meters exactly).

Common Mile to Kilometer Conversions

Miles
Kilometers
Context

0.5 mi
0.805 km
Half mile

1 mi
1.609 km
Base conversion

3.1 mi
4.989 km
5K run

5 mi
8.047 km
Short drive

6.2 mi
9.978 km
10K run

13.1 mi
21.082 km
Half marathon

26.2 mi
42.165 km
Marathon

100 mi
160.934 km
Long drive

Fibonacci Shortcut: Consecutive Fibonacci numbers approximate the mile-to-km ratio (since 1.618 is close to 1.609). So 5 miles ≈ 8 km, 8 miles ≈ 13 km, 13 miles ≈ 21 km. This trick gives surprisingly accurate results.

## Frequently Asked Questions

**Q: How many kilometers are in a mile?**

A: One mile equals exactly 1.609344 kilometers. This is derived from the international definitions: 1 mile = 5,280 feet and 1 foot = 0.3048 meters exactly, so 1 mile = 5280 x 0.3048 = 1609.344 meters = 1.609344 km.

**Q: How can I quickly estimate miles to km?**

A: Multiply by 1.6 for a close approximation, or use the Fibonacci trick: consecutive Fibonacci numbers approximate the conversion (5 miles ≈ 8 km, 8 miles ≈ 13 km). For more precision, multiply by 8 and divide by 5.

**Q: What is the difference between a mile and a nautical mile?**

A: A statute mile is 5,280 feet (1.609 km), while a nautical mile is 6,076 feet (1.852 km). Nautical miles are used in maritime and aviation because one nautical mile equals one minute of latitude, making navigation calculations simpler.

**Q: How far is a marathon in miles and kilometers?**

A: A marathon is 26.2 miles, which equals 42.195 kilometers. The half marathon is 13.1 miles or 21.0975 km. The distance was standardized at the 1908 London Olympics.

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Source: https://vastcalc.com/calculators/conversion/miles-to-km
Category: Conversion
Last updated: 2026-04-21