Nautical Miles to Kilometers Converter

Conversion Updated 15 Jun 2026

This Nautical Miles to Kilometers Converter lets you convert Nautical miles (nmi) into Kilometers (km) in one step. Enter a value in nautical miles and you'll instantly see the equivalent in kilometers, worked out with the formula kilometers = nautical miles x 1.852. It's handy whenever you need a quick, precise nautical miles-to-kilometers conversion without doing the arithmetic by hand.

  • Conversion constants are fixed and do not vary by region.

Formula

kilometers = nautical miles x 1.852
  • To convert nautical miles to kilometers, multiply your value by the fixed factor 1.852 (so 1 nmi = 1.852 km).
  • The factor comes from the internationally agreed definitions of each unit, so it never changes.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Nautical miles (nmi): 10

Start with 10 nmi. Multiply by 1.852 to get 18.52 km.

Frequently asked questions

How do I convert nautical miles to kilometers?
Multiply the number of nautical miles by 1.852. For example, 10 nmi equals 18.52 km.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.