How many miles is one nautical mile?

One nautical mile equals exactly 1.15078 statute miles (about 1.151 miles). This ratio is fixed by international definition: 1 nautical mile = 1,852 meters, while 1 statute mile = 1,609.344 meters.

Why do aviation and maritime navigation use nautical miles?

One nautical mile corresponds to one minute of arc of latitude on the Earth's surface. This makes it extremely convenient for navigation using charts and coordinates, since distance and position share the same scale.

What is the difference between a knot and a nautical mile?

A knot is a unit of speed equal to one nautical mile per hour. So if a ship travels at 10 knots, it covers 10 nautical miles (about 11.51 statute miles) every hour.

Are nautical miles used on land?

Rarely. Nautical miles are almost exclusively used in aviation and maritime contexts. Land distances are typically expressed in statute miles (in the US and UK) or kilometers (elsewhere).

What is a statute mile?

A statute mile (the common "mile") is 5,280 feet or exactly 1,609.344 meters. The word "statute" distinguishes it from a nautical mile, which is longer.

How accurate is this converter?

The conversion uses the exact internationally defined ratio: 1 nautical mile = 1.15077944802354 statute miles, giving results accurate to many decimal places. Results are displayed to 6 significant figures.

Nautical Miles to Miles Converter

Enter a distance in nautical miles or statute miles for an instant conversion with a handy reference table.

Convert Distance

Nautical Miles (nmi)

Statute Miles (mi)

Quick Reference Table

Common distances in nautical miles and their statute mile equivalents.

Nautical Miles	Statute Miles	Context

Conversion Formula

miles = nautical miles × 1.15078

nautical miles = miles ÷ 1.15078

Exact factor: 1 nmi = 1,852 m; 1 statute mile = 1,609.344 m → ratio = 1852 / 1609.344 ≈ 1.150779448

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Summary

One nautical mile equals exactly 1,852 meters (approximately 1.15078 statute miles). This difference matters in aviation and maritime contexts where charts and regulations use nautical miles, but road distances and everyday references use statute miles. Use this converter to switch between the two units instantly and accurately.

How it works

Enter a value in the Nautical Miles field to convert to statute miles.
Or enter a value in the Miles field to convert back to nautical miles.
Both fields update in real time as you type.
Consult the reference table below for common navigation distances.
Click "Reset" to clear both fields and start fresh.

Use cases

Pilots converting flight distances between nautical miles and statute miles.
Sailors planning voyages and comparing chart distances to road maps.
Students studying geography, aviation, or maritime science.
Hikers and outdoor enthusiasts converting distances cited in nautical charts.
Race organizers calculating course lengths in both unit systems.
Software developers building navigation or mapping applications.
Teachers creating unit conversion exercises for math or science classes.
Travelers comparing distances displayed differently on international maps.

Frequently Asked Questions

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