Convert nautical miles to miles

Precise decimal and fraction answers

The conversion in miles rounded to six significant decimal places is 1 nmi = 1.150779 mi. The precise fraction answer is 1 ⁵⁰³/₃₃₃₆ mi.

Answer in feet and inches

1 nmi equals 1 mi 796 ft 1 ²⁵/₆₄ in using feet, inches and fractional inches instead of decimals as is traditional in the imperial system. This calculation is accurate to the nearest 1/64th of an inch.

How many miles are in a nautical mile?

There are 1.151 miles in one nautical mile. A nautical mile is 1.151 times longer than a mile. A mile is 86.90% of a nautical mile

Nautical miles to miles conversion factor and formulas

The conversion factor between nautical miles and miles is 1.151. This represents the ratio of miles per one nautical mile. To calculate the value in miles, we can either multiply by the conversion factor or divide by its inverse.

Multiplication

To convert from nautical miles to miles, multiply nautical miles by 1.151.
The formula is expressed as:
nmi × 1.151 = mi

Division

Alternatively we can divide by the inverse conversion factor to get the same result.
The inverse of 1.151 is 1/1.151 or 0.869. To convert from nautical miles to miles, divide nautical miles by 0.869.
The formula is expressed as:
nmi ÷ 0.869 = mi

About this conversion

Converting nautical miles to miles is a conversion between units from separate unit systems - nautical miles are International Hydrographic defined units while miles are US Customary / UK Imperial .

About Nautical miles

The nautical mile is a distance measurement, usually between two geographic points. It is officially defined as being equal to 1,852 meters. The nautical mile, or international nautical mile can be found abbreviated as either M, NM, nmi or nm. Historically the nautical mile was defined as 1/16th of a degree of the earth's latitude. Given this correlation with latitude and longitude, the nautical mile has closely been associated with measurements for navigation. This tradition continues to this day as it remains the unit used to measure distance by the maritime and aviation industries. The prevalent unit of speed over water and air is the knot (nautical miles per hour).

About Miles

The mile is a measure of distance between two points used within the US Customary and British Imperial units of measure. It is customarily used to measure large geographical distances. The mile is officially defined as 5,280 feet, 1,760 yards or 1,609.344 meters. The abbreviation or for miles is 'mi' or sometimes 'm' as in miles per hour. The mile's origin stems from the Roman mile, which marked the distance the Roman army could march over 1,000 (mille) paces.

Reverse this conversion

Convert from miles to nautical miles instead.

References and Citations

1. International Hydrographic Organization Resolutions of the International Hydrographic Organization
2. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement