Miles to Nautical Miles (mi → nmi)
Formula
1 mi = 0.8689762419006479 nmiConversion Table
| mi | nmi |
|---|---|
| 0 | 0 |
| 1.0000 | 0.86898 |
| 2.0000 | 1.7380 |
| 3.0000 | 2.6069 |
| 4.0000 | 3.4759 |
| 5.0000 | 4.3449 |
| 6.0000 | 5.2139 |
| 7.0000 | 6.0828 |
| 8.0000 | 6.9518 |
| 9.0000 | 7.8208 |
| 10.000 | 8.6898 |
| 11.000 | 9.5587 |
| 12.000 | 10.428 |
| 13.000 | 11.297 |
| 14.000 | 12.166 |
| 15.000 | 13.035 |
| 16.000 | 13.904 |
| 17.000 | 14.773 |
| 18.000 | 15.642 |
| 19.000 | 16.511 |
| mi | nmi |
|---|---|
| 20.000 | 17.380 |
| 21.000 | 18.249 |
| 22.000 | 19.117 |
| 23.000 | 19.986 |
| 24.000 | 20.855 |
| 25.000 | 21.724 |
| 26.000 | 22.593 |
| 27.000 | 23.462 |
| 28.000 | 24.331 |
| 29.000 | 25.200 |
| 30.000 | 26.069 |
| 31.000 | 26.938 |
| 32.000 | 27.807 |
| 33.000 | 28.676 |
| 34.000 | 29.545 |
| 35.000 | 30.414 |
| 36.000 | 31.283 |
| 37.000 | 32.152 |
| 38.000 | 33.021 |
| 39.000 | 33.890 |
| mi | nmi |
|---|---|
| 40.000 | 34.759 |
| 41.000 | 35.628 |
| 42.000 | 36.497 |
| 43.000 | 37.366 |
| 44.000 | 38.235 |
| 45.000 | 39.104 |
| 46.000 | 39.973 |
| 47.000 | 40.842 |
| 48.000 | 41.711 |
| 49.000 | 42.580 |
| 50.000 | 43.449 |
| 51.000 | 44.318 |
| 52.000 | 45.187 |
| 53.000 | 46.056 |
| 54.000 | 46.925 |
| 55.000 | 47.794 |
| 56.000 | 48.663 |
| 57.000 | 49.532 |
| 58.000 | 50.401 |
| 59.000 | 51.270 |
| mi | nmi |
|---|---|
| 60.000 | 52.139 |
| 61.000 | 53.008 |
| 62.000 | 53.877 |
| 63.000 | 54.746 |
| 64.000 | 55.614 |
| 65.000 | 56.483 |
| 66.000 | 57.352 |
| 67.000 | 58.221 |
| 68.000 | 59.090 |
| 69.000 | 59.959 |
| 70.000 | 60.828 |
| 71.000 | 61.697 |
| 72.000 | 62.566 |
| 73.000 | 63.435 |
| 74.000 | 64.304 |
| 75.000 | 65.173 |
| 76.000 | 66.042 |
| 77.000 | 66.911 |
| 78.000 | 67.780 |
| 79.000 | 68.649 |
Miles to Nautical Miles Conversion
Converting Miles (mi) to Nautical Miles (nmi) is a common length conversion. 1 mi equals 0.868976 nmi. For example, 100 mi is equal to 86.897624 nmi.
Quick Mental Math: Miles to Nautical Miles
Apply the standard conversion formula to convert miles to nautical miles.
Why is converting Miles to Nautical Miles tricky?
One unit is obscure or specialized, making the conversion unfamiliar to most people.
Quick Reference Values
1 mi = 0.868976 nmi. 5 mi = 4.344881 nmi. 10 mi = 8.689762 nmi. 25 mi = 21.724406 nmi. 50 mi = 43.448812 nmi. 100 mi = 86.897624 nmi.
What is Miles?
Miles (mi) is a unit of length. The mile is a unit of length equal to exactly 1,609.344 meters. It is defined internationally based on the statute mile standard agreed upon by the United States and countries using Imperial units [bipm-si-brochure]. The mile is used primarily for measuring distances on land and in navigation. The mile traces back to Roman times, originally defined as 1,000 paces. The modern statute mile was standardized in 1593 by an English Act of Parliament and internationally fixed in 1959 to 1,609.344 meters to unify measurements [bipm-si-brochure]. Miles remain official units of length in the United States, United Kingdom, and some Caribbean countries. It is commonly used in road distances, aviation, and maritime navigation, despite the global trend toward metric units [nist-sp-811].
What is Nautical Miles?
Nautical Miles (nmi) is a unit of length. A nautical mile equals exactly 1852 meters by international agreement, representing one minute of arc along a meridian on Earth's surface. It is used for maritime and aviation navigation due to its direct link with angular measurements on a globe [bipm-si-brochure]. The nautical mile was standardized internationally in 1929 based on Earth's circumference. It derives from older maritime practices where one minute of latitude approximately equaled one nautical mile, formalized by the International Hydrographic Organization [bipm-si-brochure]. Nautical miles are the standard unit for sea and air navigation globally. Countries, maritime organizations, and aviation authorities use nautical miles for distance, speed (knots), and charting [bipm-si-brochure].
Common Misspellings
People often search for this conversion using these alternate spellings: mile, mileses, miels, mil, nautical mile, nauticalmiles, nauticalmiles, nautical mils. All of these refer to the Miles to Nautical Miles conversion.