Online calculator to convert miles to nautical miles (mi to nmi) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Length or Distance units.
Conversion Calculator
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Convert miles to nautical miles
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between miles and nautical miles.
What is a mile (mi)?
A mile is a unit of Length or Distance in both US Customary Units as well as the Imperial System. The symbol for mile is mi. There are 1.15078 miles in a nautical mile.
What is a nautical mile (M, NM, or nmi)?
A nautical mile is a non-SI unit of Length or Distance. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. It is approximately one minute of arc measured along any meridian. The symbol for nautical mile is M or NM or nmi. There are 0.86897583 nautical miles in a mile.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from miles to nautical miles is:
nautical miles = miles ÷ 1.15078
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from miles to nautical miles (mi to nmi).
Mile to Nautical Mile Conversion Example
Task: Convert 5 miles to nautical miles (show work) Formula: miles ÷ 1.15078 = nautical miles Calculations: 5 miles ÷ 1.15078 = 4.34487913 nautical miles Result: 5 miles is equal to 4.34487913 nautical miles
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from miles to nautical miles.
Miles to Nautical Miles Conversion Chart
miles (mi) | nautical miles (nmi) |
---|---|
1 miles | 0.86897583 nmi |
2 miles | 1.73795165 nmi |
3 miles | 2.60692748 nmi |
4 miles | 3.4759033 nmi |
5 miles | 4.34487913 nmi |
6 miles | 5.21385495 nmi |
7 miles | 6.08283078 nmi |
8 miles | 6.9518066 nmi |
9 miles | 7.82078243 nmi |
10 miles | 8.68975825 nmi |
20 miles | 17.3795165 nmi |
30 miles | 26.06927475 nmi |
40 miles | 34.759033 nmi |
50 miles | 43.44879125 nmi |
75 miles | 65.17318688 nmi |
100 miles | 86.89758251 nmi |
250 miles | 217.24395627 nmi |
500 miles | 434.48791255 nmi |
750 miles | 651.73186882 nmi |
1,000 miles | 868.97582509 nmi |
2,500 miles | 2,172.43956273 nmi |
5,000 miles | 4,344.87912546 nmi |
7,500 miles | 6,517.31868819 nmi |
10,000 miles | 8,689.75825093 nmi |
25,000 miles | 21,724.39562731 nmi |
50,000 miles | 43,448.79125463 nmi |
75,000 miles | 65,173.18688194 nmi |
100,000 miles | 86,897.58250925 nmi |
250,000 miles | 217,243.95627314 nmi |
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