Nautical Miles to Miles Calculator
Convert nautical miles to statute miles and km.
Results update as you type.
How it works
Nautical miles are used for distances at sea and in the air, and this calculator converts them to the miles and kilometers used on land. You enter a distance in nautical miles, and it returns the equivalent in statute (regular) miles and kilometers. A nautical mile is defined as exactly 1,852 meters, a value based on the geometry of the Earth: it originally corresponded to one minute of latitude along a meridian, which makes it natural for navigation with charts and coordinates. This is longer than a statute mile, the regular mile used on roads, so one nautical mile equals about 1.151 statute miles or 1.852 kilometers. Converting matters when you encounter a distance given in nautical miles, such as a flight distance, a ship's voyage, a marine chart, or a weather advisory, but want to relate it to familiar road distances. For example, a 100-nautical-mile trip is about 115 statute miles or 185 kilometers. Pilots, sailors, and anyone reading aviation or marine information use this conversion regularly. The related unit, the knot, is one nautical mile per hour, so nautical miles and knots go together for navigation. The conversion factors are exact and fixed. Enter a distance in nautical miles to convert it to statute miles and kilometers.
1 nautical mile = 1.150779 statute miles = 1.852 km
A nautical mile is defined as exactly 1,852 meters, or 1.852 kilometers, based on the circumference of the Earth. That equals about 1.150779 statute (regular) miles. Multiplying nautical miles by these fixed factors converts the distance to statute miles and kilometers.
Source:Unit conversion
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Worked example
How to use this calculator
- 1
Enter your values
Enter nautical miles.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Statute miles updates instantly as you type — no button to press.
Frequently asked questions
How do I convert nautical miles to regular miles?
Multiply the nautical miles by 1.150779 to get statute (regular) miles. For example, 100 nautical miles is about 115.08 statute miles. The calculator also converts to kilometers by multiplying by 1.852, giving you both common land-distance units from a nautical distance in a single step for easy comparison.
What is a nautical mile?
A nautical mile is a unit of distance used at sea and in aviation, defined as exactly 1,852 meters. It is based on the Earth's geometry, originally equal to one minute of latitude, which makes it convenient for navigation using charts and coordinates. It is longer than a regular statute mile.
Why is a nautical mile longer than a statute mile?
A nautical mile (1,852 meters) is longer than a statute mile (about 1,609 meters) because they come from different definitions. The nautical mile derives from the Earth's circumference and latitude, while the statute mile has historical land-measurement roots. As a result, one nautical mile equals about 1.15 statute miles.
How are nautical miles related to knots?
A knot is a speed of one nautical mile per hour, so nautical miles and knots are paired for navigation. If a vessel travels at 20 knots for 3 hours, it covers 60 nautical miles. This natural relationship, tied to the Earth's geometry, is why both units are standard in maritime and aviation contexts.
When would I need this conversion?
You need it whenever a distance is given in nautical miles but you want to understand it in road terms, such as a flight distance, a ship's voyage length, a marine navigation chart, or a coastal weather advisory. Converting to statute miles or kilometers relates the nautical distance to the units most people use on land.