How many kilometers is one nautical mile?

One nautical mile equals exactly 1.852 kilometers by international definition.

What is 100 km in nautical miles?

100 km equals about 54 nautical miles (100 divided by 1.852).

A nautical mile (1.852 km) is longer than a statute mile (1.609 km), so results differ noticeably.

No. Speed at sea uses knots (nautical miles per hour); use a km/h-to-knots converter for speed.

The international standard symbol is nmi. NM and M are also seen in aviation and marine use, but nmi avoids confusion with nanometres.

Enter kilometers and get nautical miles by dividing by 1.852 (one nautical mile is exactly 1.852 km).

Value in kilometers (km)

Quick values

Formula: result = value × 0.539957

1 kilometers =

— nautical miles

nmi

Common conversions

kilometers	nautical miles

Enter kilometers and get nautical miles by dividing by 1.852 (one nautical mile is exactly 1.852 km).

Last updated: 2026-09-22 · Reviewed by Nham Vu