Nautical Miles to Miles
( nmi → mi )
Instantly convert nautical miles to statute miles. Enter any value below and get an accurate result with the full formula and reference table.
How to Convert Nautical Miles to Miles
To convert nautical miles to statute miles, multiply the number of nautical miles by 1.15078. This factor comes from the definitions: one nautical mile equals 1,852 meters, while one statute mile equals 1,609.344 meters. Therefore, 1 nmi = 1852 / 1609.344 = 1.150779448… mi.
Step-by-Step Example
Let’s convert 10 nautical miles to miles:
1. Multiply by 1.15078: 10 × 1.15078 = 11.5078 miles
2. So 10 nautical miles is approximately 11.51 miles.
For a distance of 100 nautical miles: 100 × 1.15078 = 115.078 miles.
Why the Difference?
The nautical mile is based on the Earth’s circumference — one minute of latitude. The statute mile originated from Roman paces and was later standardized. Since they are based on different references, the conversion factor is not a round number but is exact when using the meter definitions.
When You’d Use Each Unit
Nautical miles are used in aviation, marine navigation, and for international boundaries at sea. Statute miles are used on land in the US and UK for road distances and speed limits. Converting between them is essential for flight planning, sea travel, and understanding global distances.
Common nautical miles values converted to miles — popular distances highlighted.
| Nautical Miles (nmi) | Miles (mi) | Approximate |
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