How many furlongs are in one nautical mile?

One nautical mile equals approximately 9.20624 furlongs. This is derived from the exact definition of a nautical mile (1,852 meters) divided by the exact length of a furlong (201.168 meters).

How many nautical miles are in one furlong?

One furlong equals approximately 0.108622 nautical miles (201.168 m ÷ 1,852 m).

What is a nautical mile?

A nautical mile is an international unit of length used in maritime and air navigation. It is defined as exactly 1,852 meters, roughly equal to one minute of arc of latitude along any meridian.

A furlong is an imperial unit of length equal to one-eighth of a mile, or 201.168 meters (220 yards). It is still widely used in horse racing to measure course distances.

Is this conversion exact?

Yes. Both units have exact metric definitions: 1 nautical mile = 1,852 m exactly; 1 furlong = 201.168 m exactly. The conversion factor (1 nmi = 9.20624 furlongs) is therefore exact to the precision shown.

Nautical Miles to Furlongs Converter

Instantly convert nautical miles to furlongs (and back) with precise results and a handy reference table.

Convert Distance

Nautical Miles (nmi)

Furlongs (fur)

Result

Enter a value on the left to see the result.

Quick Reference Table

Nautical Miles (nmi)	Furlongs (fur)

Summary

One nautical mile equals exactly 1,852 meters, which converts to approximately 9.2062 furlongs. This tool lets you convert any number of nautical miles to furlongs or furlongs to nautical miles in real time, with no rounding surprises. It is useful for comparing maritime navigation distances with land-based or equestrian measurements.

How it works

Enter a value in either the Nautical Miles or Furlongs field.
The converter applies the exact factor: 1 nmi = 9.20624 furlongs.
The result appears instantly in the opposite field.
Use the swap button to reverse the direction of conversion.
Scroll down to see a quick-reference conversion table.

Use cases

Convert a voyage distance in nautical miles to furlongs for land-based comparison.
Cross-reference horse-racing course lengths (furlongs) with offshore distances.
Educational exercises comparing maritime and imperial distance units.
Navigate hobbyist sailing logs alongside traditional British distance measurements.
Double-check chart distances when planning coastal trips.
Convert historical nautical records into furlong equivalents for research.

Frequently Asked Questions

Last updated: 2026-10-05 · Reviewed by Nham Vu