Nautical Miles to Miles Converter
Convert nautical miles (nmi) to miles (mi) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Nautical Miles to Miles formula
mi = nmi × 1.150779448
1 nautical mile = 1.15 miles · 1 mile = 0.869 nautical miles
To convert nautical miles to miles, multiply the value by 1.150779448. For example, 10 nmi:
mi = 10 × 1.150779448mi = 11.507794
So 10 nmi = 11.51 mi.
Mental math shortcut
Quick mental estimate: add 15%. For 10 nmi that gives about 11.5 mi — within 1% of the exact answer. Use the exact formula when precision matters.
Nautical Miles to Miles conversion table
Miles back to Nautical Miles
The same values converted the other way, rounded for everyday use:
| Miles | Nautical miles |
|---|---|
| 1.15 mi | 0.9993 nmi |
| 5.75 mi | 5 nmi |
| 11.51 mi | 10 nmi |
| 13.81 mi | 12 nmi |
| 23.02 mi | 20 nmi |
| 57.54 mi | 50 nmi |
| 115.08 mi | 100 nmi |
| 230.16 mi | 200 nmi |
About the units
Nautical miles (nmi)
A nautical mile is exactly 1,852 meters (about 1.15 statute miles), based on one minute of latitude. It is used at sea and in aviation.
Miles (mi)
A mile is 5,280 feet, or exactly 1,609.344 meters. It is the road-distance unit in the US and UK.
Frequently asked questions
How many miles are in a nautical mile?
One nautical mile equals 1.15 miles.
What is 10 Nautical Miles in Miles?
10 nmi = 11.51 mi.
How do I convert Miles back to Nautical Miles?
Divide the miles by 1.150779448.