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Convert km to nautical miles

1 kilometer equals 0.5399568 nautical miles. Enter a value below to convert instantly.

1 km
0.5399568 nmi

Multiply the number of kilometers by 0.539956803456 to get nautical miles. How this is calculated

Copy link puts your number after the #, which browsers never send to a server — but the link itself carries it, so anyone you send it to sees the value. Save keeps the unit pair in this browser only; clear it any time from your saved list.

Need the other direction? Convert nautical mile to kilometer →

Formula

Multiply the number of kilometers by 0.539956803456 to get nautical miles.

Step by step

  1. Start with 1 km.
  2. Multiply by the conversion factor 0.539956803456.
  3. 1 × 0.539956803456 = 0.5399568 nmi.

Kilometers to Nautical Miles conversion table

Kilometers (km) Nautical Miles (nmi)
1 0.5399568
2 1.0799136
3 1.6198704
5 2.699784
10 5.399568
20 10.799136
50 26.99784
100 53.99568
500 269.9784
1,000 539.9568

Convert Kilometer to other length units

1 km expressed in every other length unit on this site.

  • Meter m 1,000
  • Hectometer hm 10
  • Dekameter dam 100
  • Decimeter dm 10,000
  • Centimeter cm 100,000
  • Millimeter mm 1,000,000
  • Micrometer µm 1,000,000,000
  • Nanometer nm 1,000,000,000,000
  • Picometer pm 1e+15
  • Femtometer fm 1e+18
  • Attometer am 1e+21
  • Megameter Mm 0.001
  • Gigameter Gm 0.000001
  • Terameter Tm 1e-9
  • Petameter Pm 1e-12
  • Exameter Em 1e-15
  • Angstrom Å 10,000,000,000,000
  • Mile mi 0.62137119
  • Yard yd 1,093.6133
  • Foot ft 3,280.8399
  • Inch in 39,370.079
  • Kiloyard kyd 1.0936133
  • League lea 0.20712373
  • Furlong fur 4.9709695
  • Chain ch 49.709695
  • Rod rd 198.83878
  • Perch perch 198.83878
  • Pole pole 198.83878
  • Rope rope 164.04199
  • Fathom fath 546.80665
  • Link li 4,970.9695
  • Hand hand 9,842.5197
  • Ell ell 874.89064
  • Barleycorn barleycorn 118,110.24
  • Mil mil 39,370,079
  • Microinch µin 39,370,079,000
  • Caliber cl 3,937,007.9
  • Centiinch cin 3,937,007.9
  • Nautical Mile nmi 0.5399568
  • Nautical Mile (UK) NM (UK) 0.53961182
  • Nautical League nl 0.1799856
  • Nautical League (UK) nl (UK) 0.17987061
  • Mile (US survey) mi (US) 0.62136995
  • Furlong (US survey) fur (US) 4.9709596
  • Chain (US survey) ch (US) 49.709596
  • Rod (US survey) rd (US) 198.83838
  • Fathom (US survey) fath (US) 546.80556
  • Foot (US survey) ft (US) 3,280.8333
  • Link (US survey) li (US) 4,970.9596
  • Inch (US survey) in (US) 39,370
  • League (statute) st.league 0.20712332
  • Pica pica 236,220.47
  • Point pt 2,834,645.7
  • Twip twip 56,692,913
  • Light Year ly 1.0570008e-13
  • Astronomical Unit AU 6.6845871e-9
  • Parsec pc 3.2407793e-14
  • Kiloparsec kpc 3.2407793e-17
  • Megaparsec Mpc 3.2407793e-20
  • Earth's Equatorial Radius R⊕(eq) 0.00015678559
  • Earth's Polar Radius R⊕(pol) 0.00015731304
  • Earth's Distance from Sun d⊕☉ 6.684492e-9
  • Sun's Radius R☉ 0.0000014374012
  • Bohr Radius a₀ 18,897,261,000,000
  • Electron Radius (classical) rₑ 3.5486912e+17
  • Fermi F 1e+18
  • X-unit X 9.9792432e+15
  • Planck Length ℓP 6.1871425e+37
  • Mile (Roman) mi (Rom) 0.67576517
  • Roman Actus actus 28.18591
  • Arpent arpent 17.087708
  • Cubit (UK) cubit 2,187.2266
  • Cubit (Greek) cubit (Gk) 2,160.8166
  • Long Cubit long cubit 1,874.7657
  • Reed reed 364.53777
  • Long Reed long reed 312.46094
  • Span (cloth) span 4,374.4532
  • Finger (cloth) finger 8,748.9064
  • Nail (cloth) nail 17,497.813
  • Handbreadth handbreadth 13,123.36
  • Fingerbreadth fingerbreadth 52,493.438
  • Aln aln 1,684.1317
  • Famn famn 561.37725
  • Ken ken 472.06329
  • Russian Archin archin 1,406.0742
  • Vara Castellana vara (cast) 1,197.3868
  • Vara Conuquera vara (con) 399.12894
  • Vara de Tarea vara (tarea) 399.12894
  • Ja (Korean foot) 자 3,300
  • Chi 치 33,000
  • Pun 푼 330,000
  • Gan 간 550
  • Jang 장 330
  • Ri (Korean) 리 2.5462963

About the kilometer

The kilometer (km) is a SI unit of length.

About the nautical mile

The nautical mile (nmi) is a Other unit of length. Exactly 1,852 meters — about one minute of latitude.

Where this conversion is used

Converting kilometers to nautical miles comes up when measuring height, screen sizes, travel distances, fabric, and construction dimensions. Metric and Imperial length units are both in daily use, so quick conversion is often needed when following instructions from another country.

Related conversions

Frequently asked questions

How many nautical miles are in a kilometer?

One kilometer equals 0.5399568 nautical miles.

How do you convert kilometers to nautical miles?

Multiply the number of kilometers by 0.539956803456 to get nautical miles.

What is 1 nautical mile in kilometers?

One nautical mile equals 1.852 kilometers.

When would I convert kilometers to nautical miles?

This conversion is common when measuring height, screen sizes, travel distances, fabric, and construction dimensions.

Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.