Kilometers to nautical miles converter

1 km = 0.5399568 nmi. To convert kilometers to nautical miles, divide by 1.852 (or multiply by ≈ 0.5399568). Example: 10 km = 5.399568 nmi.

Result (nmi)

nmi = km ÷ 1.852 · Swap: Nautical miles to kilometers

Open the full tool: Unit converter →

Kilometers to nautical miles chart

KilometersNautical miles
1 km0.539957 nmi
2 km1.07991 nmi
3 km1.61987 nmi
4 km2.15983 nmi
5 km2.69978 nmi
6 km3.23974 nmi
7 km3.7797 nmi
8 km4.31965 nmi
9 km4.85961 nmi
10 km5.39957 nmi
12 km6.47948 nmi
15 km8.09935 nmi
20 km10.7991 nmi
25 km13.4989 nmi
30 km16.1987 nmi
40 km21.5983 nmi
50 km26.9978 nmi
60 km32.3974 nmi
75 km40.4968 nmi
100 km53.9957 nmi
200 km107.991 nmi
500 km269.978 nmi
1000 km539.957 nmi

How to convert kilometers to nautical miles

Formula: nmi = km ÷ 1.852. Worked example: 10 km = 5.399568 nmi. Quick estimate: multiply by about 0.5 — the error is 7.4%, fine for everyday use but not for engineering or shopping by exact size.

About these units

The nautical mile is exactly 1,852 m, historically one minute of latitude. It is used in marine and air navigation, and one nautical mile per hour is a knot. Territorial waters extend 12 nautical miles (22.224 km).

Category: length. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of length open the full unit converter, or use the reverse page — nautical miles to kilometers.

FAQ

How many nautical miles are in one km?

1 km = 0.5399568035 nmi (rounded). Conversely, 1 nmi = 1.852 km.

What is 100 km in nautical miles?

100 km = 53.99568 nmi.

Is this converter accurate?

Yes — it uses the official definitions (1 km = 1000 m, 1 nmi = 1852 m) and shows results rounded to 7 significant digits.

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