Sumwise

Kilometers to nautical miles

nautical miles = kilometers × 0.5399568

Reverse: nautical miles to kilometers

How to convert kilometers to nautical miles

One kilometer is 0.5399568 nautical miles, so multiply the number of kilometers by 0.5399568. For example, 20 kilometers is 20 × 0.5399568 = 10.799136 nautical miles. To go back, divide by the same number, or multiply by 1.852.

Quick estimate

Multiplying by about 0.5 gets within 7.4% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Length conversions come up in DIY and building plans, running and cycling distances, maps, clothing sizes and travel between countries that use metric and imperial units.

kilometersnautical miles
1 km0.5399568 nmi
2 km1.079914 nmi
3 km1.61987 nmi
4 km2.159827 nmi
5 km2.699784 nmi
6 km3.239741 nmi
7 km3.779698 nmi
8 km4.319654 nmi
9 km4.859611 nmi
10 km5.399568 nmi
11 km5.939525 nmi
12 km6.479482 nmi
13 km7.019438 nmi
14 km7.559395 nmi
15 km8.099352 nmi
16 km8.639309 nmi
17 km9.179266 nmi
18 km9.719222 nmi
19 km10.259179 nmi
20 km10.799136 nmi
25 km13.49892 nmi
30 km16.198704 nmi
40 km21.598272 nmi
50 km26.99784 nmi
60 km32.397408 nmi
70 km37.796976 nmi
75 km40.49676 nmi
80 km43.196544 nmi
90 km48.596112 nmi
100 km53.99568 nmi
120 km64.794816 nmi
150 km80.993521 nmi
200 km107.991361 nmi
250 km134.989201 nmi
300 km161.987041 nmi
400 km215.982721 nmi
500 km269.978402 nmi
750 km404.967603 nmi
1,000 km539.956803 nmi
1,500 km809.935205 nmi
2,000 km1,079.91 nmi
5,000 km2,699.78 nmi
10,000 km5,399.57 nmi

Questions

How many nautical miles are in a kilometer?

0.5399568 nautical miles.

How do I convert kilometers to nautical miles in a spreadsheet?

Put the value in A1 and type =A1*0.5399568, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.