Nautical miles to Kilometres Converter
Convert nautical miles (nmi) to kilometres (km) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Result
- Kilometres
- 1.852 km
How to use the nautical miles to kilometres converter
- Enter the nautical miles (nmi).
- The results update as you type, or press Calculate.
- Read the kilometres first, then the supporting figures below it.
Formula
Kilometres = nautical miles × 1.852
Worked example
For example, with these inputs:
- Nautical miles (nmi): 1
the calculator returns:
- Kilometres: 1.852 km
Nautical miles to Kilometres table
| Nautical miles | Kilometres |
|---|---|
| 1 nmi | 1.852 km |
| 2 nmi | 3.704 km |
| 5 nmi | 9.26 km |
| 10 nmi | 18.52 km |
| 20 nmi | 37.04 km |
| 25 nmi | 46.3 km |
| 50 nmi | 92.6 km |
| 100 nmi | 185.2 km |
| 250 nmi | 463 km |
| 500 nmi | 926 km |
| 1,000 nmi | 1,852 km |
About this conversion
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Frequently asked questions
How many kilometres are in one nautical mile?
1 nmi = 1.852 km.
How do I convert nmi to km?
Kilometres = nautical miles × 1.852.