Formula
km to nmi conversion formula
Use this relationship for a direct conversion:
nmi = km x 0.539956803456
Worked example
2 km = 1.0799136069 nmi.
Metric factors and international inch, foot, yard, mile, and nautical mile definitions are exact.
Length conversion
Convert Kilometer to Nautical mile
1 kilometer (km) equals 0.539956803456 nautical mile (nmi). Enter any value below to convert from km to nmi.
Enter a value and choose units. Results update instantly.
1 km = 0.5399568035 nmi
All Length units
From 1 km| Unit | Value |
|---|---|
| Meter m | 1,000 |
| Kilometer km | 1 |
| Centimeter cm | 100,000 |
| Millimeter mm | 1,000,000 |
| Micrometer μm | 1,000,000,000 |
| Nanometer nm | 999,999,999,999.9998779297 |
| Inch in | 39,370.0787401575 |
| Foot ft | 3,280.8398950131 |
| Yard yd | 1,093.6132983377 |
| Mile mi | 0.6213711922 |
| Nautical mile nmi | 0.5399568035 |
| Light-year ly | 1.057000834e-13 |
Recent conversions
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Quick reference
Kilometer to Nautical mile table
| Kilometer (km) | Nautical mile (nmi) |
|---|---|
| 0.01 | 0.005399568 |
| 0.1 | 0.0539956803 |
| 1 | 0.5399568035 |
| 2 | 1.0799136069 |
| 5 | 2.6997840173 |
| 10 | 5.3995680346 |
| 25 | 13.4989200864 |
| 50 | 26.9978401728 |
| 100 | 53.9956803456 |
| 1,000 | 539.9568034557 |
From unit
About the kilometer
One thousand meters.
Symbol: km
To unit
About the nautical mile
Exactly 1,852 meters.
Symbol: nmi
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Source
Conversion standard
Definitions are checked against NIST SP 811: Guide for the Use of the SI. Calculations use full internal precision before display rounding.
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km to nmi FAQ
How do you convert kilometer to nautical mile?
Use the formula nmi = km x 0.539956803456. 1 kilometer (km) equals 0.539956803456 nautical mile (nmi).
Is the km to nmi conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.