Miles to Nautical Miles Converter (mi to nmi)
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Formula
To convert miles to nautical miles, multiply the value by 0.868976242.
nmi = mi × 0.868976242
Example calculation
Convert 5 mi to nmi:
5 mi × 0.868976242 = 4.34488 nmi
Conversion table
| mi | nmi |
|---|---|
| 1 | 0.8690 |
| 2 | 1.7380 |
| 3 | 2.6069 |
| 4 | 3.4759 |
| 5 | 4.3449 |
| 6 | 5.2139 |
| 7 | 6.0828 |
| 8 | 6.9518 |
| 9 | 7.8208 |
| 10 | 8.6898 |
| 15 | 13.0346 |
| 20 | 17.3795 |
| 25 | 21.7244 |
| 30 | 26.0693 |
| 35 | 30.4142 |
| 40 | 34.7590 |
| 45 | 39.1039 |
| 50 | 43.4488 |
| 55 | 47.7937 |
| 60 | 52.1386 |
| 65 | 56.4835 |
| 70 | 60.8283 |
| 75 | 65.1732 |
| 80 | 69.5181 |
| 85 | 73.8630 |
| 90 | 78.2079 |
| 95 | 82.5527 |
| 100 | 86.8976 |
| 200 | 173.7952 |
| 500 | 434.4881 |
| 1000 | 868.9762 |
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About the units
- Mile (mi)
- Used for road distances in the US and UK. The statute mile is exactly 1,609.344 metres, derived from the Roman mille passus.
- Nautical Mile (nmi)
- Used in sea and air navigation worldwide. Defined internationally as exactly 1,852 metres, close to one minute of latitude.
Frequently asked questions
- How do I convert miles to nautical miles?
- To convert miles to nautical miles, multiply the value by 0.868976242.
- How many nautical miles are in 1 mile?
- 1 mile equals 0.868976 nmi.
- How many nautical miles are in 10 miles?
- 10 mi equals 8.68976 nmi.
- How do I convert nautical miles back to miles?
- Use the reverse converter: 1 nautical mile equals 1.15078 mi.
- Is this converter accurate?
- Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.
Related conversions
- Reverse conversion: nautical miles → miles
- millimeters → miles
- miles → millimeters
- centimeters → miles
- miles → centimeters
- meters → miles
- miles → meters
- kilometers → miles
- miles → kilometers