Formula
nmi to km conversion formula
Use this relationship for a direct conversion:
km = nmi x 1.852
Worked example
2 nmi = 3.704 km.
Metric factors and international inch, foot, yard, mile, and nautical mile definitions are exact.
Length conversion
Convert Nautical mile to Kilometer
1 nautical mile (nmi) equals 1.852 kilometer (km). Enter any value below to convert from nmi to km.
Enter a value and choose units. Results update instantly.
1 nmi = 1.852 km
All Length units
From 1 nmi| Unit | Value |
|---|---|
| Meter m | 1,852 |
| Kilometer km | 1.852 |
| Centimeter cm | 185,200 |
| Millimeter mm | 1,852,000 |
| Micrometer μm | 1,852,000,000 |
| Nanometer nm | 1.852e12 |
| Inch in | 72,913.3858267717 |
| Foot ft | 6,076.1154855643 |
| Yard yd | 2,025.3718285214 |
| Mile mi | 1.150779448 |
| Nautical mile nmi | 1 |
| Light-year ly | 1.9575655446e-13 |
Recent conversions
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Quick reference
Nautical mile to Kilometer table
| Nautical mile (nmi) | Kilometer (km) |
|---|---|
| 0.01 | 0.01852 |
| 0.1 | 0.1852 |
| 1 | 1.852 |
| 2 | 3.704 |
| 5 | 9.26 |
| 10 | 18.52 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
| 1,000 | 1,852 |
From unit
About the nautical mile
Exactly 1,852 meters.
Symbol: nmi
To unit
About the kilometer
One thousand meters.
Symbol: km
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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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nmi to km FAQ
How do you convert nautical mile to kilometer?
Use the formula km = nmi x 1.852. 1 nautical mile (nmi) equals 1.852 kilometer (km).
Is the nmi to km conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.