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Length

Convert furlongs to nautical miles

1 fur=0.1086nmi

Use the converter below to change any furlongs value into nautical miles instantly — with formula, conversion table, and real-world examples.

0.10862

Conversion formula

Forward
nautical miles = furlongs × 0.1086
Reverse
furlongs = nautical miles × 9.20624

Example: 10 fur × 0.1086 = 1.08622 nmi.

About both units

From

Furlong

fur

The furlong equals 201.168 meters or 1/8 of a statute mile. It originated as the length of a medieval English plough furrow — "furrow long". Today it survives mainly in horse racing in the UK, Ireland and North America, where race distances are typically 5 to 12 furlongs.

Real-world: The Epsom Derby is run over 1 mile and 4 furlongs (about 2.4 km). The Kentucky Derby is 10 furlongs.
Read full furlong reference →
To

Nautical Mile

nmi

The nautical mile equals 1852 meters exactly — defined as one minute of arc along a meridian. It is the standard distance unit for marine and air navigation worldwide. Ship and aircraft speeds are given in knots, where 1 knot = 1 nautical mile per hour.

Real-world: Territorial waters extend 12 nautical miles from the coastline. London Heathrow to New York JFK is about 3000 nmi.
Read full nautical mile reference →

Furlong to Nautical Mile conversion table

Common furlongs to nautical miles values for quick reference.

Furlong (fur)Nautical Mile (nmi)
1 fur0.1086 nmi
5 fur0.5431 nmi
10 fur1.08622 nmi
25 fur2.71555 nmi
50 fur5.4311 nmi
100 fur10.8622 nmi
250 fur27.1555 nmi
500 fur54.311 nmi
1,000 fur108.622 nmi
5,000 fur543.11 nmi

Tips & common mistakes

Quick tips

  • 1 furlong = 1/8 mile = 10 chains = 220 yards.
  • Convert quickly: 8 furlongs = 1 mile = 1.609 km.
  • Furlongs are used almost exclusively in horse racing — elsewhere they are largely historical.

Avoid these

  • Assuming furlongs appear in modern road distances — they do not.
  • Confusing furlongs with fathoms (a nautical depth unit).
  • Using 200 m as a shortcut when accuracy matters — the true value is 201.168 m.

Frequently asked questions

How many nautical miles in a furlong?
One furlong equals 0.1086 nautical miles.
How do I convert furlongs to nautical miles?
Multiply the furlong value by 0.1086 to get the equivalent in nautical miles.
What is 100 furlongs in nautical miles?
100 furlongs equals 10.8622 nautical miles.
Is a furlong bigger than a nautical mile?
No. 1 furlong equals 0.1086 nautical miles, so one furlong is smaller.
How to convert furlongs to nautical miles without a calculator?
Multiply by 0.11 for a quick estimate; use a calculator for precise results.

Related length conversions

📊 See full comparison matrix →

More from Furlong

fur → m
1 = 201.168 m
fur → km
1 = 0.2012 km
fur → cm
1 = 20,116.8 cm
fur → mm
1 = 201,168 mm
fur → mi
1 = 0.125 mi
fur → yd
1 = 220 yd
fur → ft
1 = 660 ft
fur → in
1 = 7,920 in

More to Nautical Mile

m → nmi
1 = 0.00054 nmi
km → nmi
1 = 0.54 nmi
cm → nmi
1 = 5.3996e-6 nmi
mm → nmi
1 = 5.3996e-7 nmi
mi → nmi
1 = 0.869 nmi
yd → nmi
1 = 0.0004937 nmi
ft → nmi
1 = 0.0001646 nmi
in → nmi
1 = 1.3715e-5 nmi

Conversions in other categories

WeightKilogram → PoundTemperatureCelsius → FahrenheitVolumeLiter → US GallonAreaSquare Meter → Square FootSpeedKilometer per Hour → Mile per HourEnergyKilojoule → KilocaloriePressureBar → Pound per Square InchPowerKilowatt → Mechanical Horsepower