Convert Miles to Nautical Miles
Enter a value in miles to see it in nautical miles. The answer, a worked example and conversion charts are below.
What is a mile?
Definition: A US customary and imperial unit equal to 5,280 feet or 1,609.344 meters.
Current use: The standard road-distance unit in the US and UK.
What is a nautical mile?
Definition: Defined as exactly 1,852 meters, based on one minute of latitude along a meridian.
Current use: Used in maritime and aviation navigation worldwide.
Miles to Nautical Miles Conversion Table
| Miles [mi] | Nautical Miles [nmi] |
|---|---|
| 0.01 mi | 0.0086897624 nmi |
| 0.1 mi | 0.0868976242 nmi |
| 1 mi | 0.8689762419 nmi |
| 2 mi | 1.7379524838 nmi |
| 3 mi | 2.6069287257 nmi |
| 5 mi | 4.3448812095 nmi |
| 10 mi | 8.689762419 nmi |
| 20 mi | 17.379524838 nmi |
| 50 mi | 43.448812095 nmi |
| 100 mi | 86.8976241901 nmi |
| 1000 mi | 868.9762419006 nmi |
Miles to Nautical Miles Chart (1 to 100)
- 1 mi 0.868976 nmi
- 2 mi 1.73795 nmi
- 3 mi 2.60693 nmi
- 4 mi 3.4759 nmi
- 5 mi 4.34488 nmi
- 6 mi 5.21386 nmi
- 7 mi 6.08283 nmi
- 8 mi 6.95181 nmi
- 9 mi 7.82079 nmi
- 10 mi 8.68976 nmi
- 11 mi 9.55874 nmi
- 12 mi 10.4277 nmi
- 13 mi 11.2967 nmi
- 14 mi 12.1657 nmi
- 15 mi 13.0346 nmi
- 16 mi 13.9036 nmi
- 17 mi 14.7726 nmi
- 18 mi 15.6416 nmi
- 19 mi 16.5105 nmi
- 20 mi 17.3795 nmi
- 25 mi 21.7244 nmi
- 30 mi 26.0693 nmi
- 35 mi 30.4142 nmi
- 40 mi 34.759 nmi
- 45 mi 39.1039 nmi
- 50 mi 43.4488 nmi
- 55 mi 47.7937 nmi
- 60 mi 52.1386 nmi
- 65 mi 56.4835 nmi
- 70 mi 60.8283 nmi
- 75 mi 65.1732 nmi
- 80 mi 69.5181 nmi
- 85 mi 73.863 nmi
- 90 mi 78.2079 nmi
- 95 mi 82.5527 nmi
- 100 mi 86.8976 nmi
How to Convert Miles to Nautical Miles
1 nmi = 1.150779448 mi
Worked example (a marathon): 26.2 mi × 0.8689762419 = 22.7672 nmi.
Source: NIST Special Publication 811 (2008), Appendix B; the international yard and pound agreement of 1959 (1 inch = 25.4 mm exactly).
Nautical Miles to Miles Conversion Table
| Nautical Miles [nmi] | Miles [mi] |
|---|---|
| 0.01 nmi | 0.0115077945 mi |
| 0.1 nmi | 0.1150779448 mi |
| 1 nmi | 1.150779448 mi |
| 2 nmi | 2.301558896 mi |
| 3 nmi | 3.4523383441 mi |
| 5 nmi | 5.7538972401 mi |
| 10 nmi | 11.5077944802 mi |
| 20 nmi | 23.0155889605 mi |
| 50 nmi | 57.5389724012 mi |
| 100 nmi | 115.0779448024 mi |
| 1000 nmi | 1150.7794480235 mi |
Quick Estimate
For a quick mental estimate, 1 mi is about 0.87 nmi, and 1 nmi is about 1.2 mi. Use the exact calculator above when accuracy matters, such as for money, medicine, engineering or anything you will buy or sell.
Frequently Asked Questions
How many nautical miles are in a mile?
1 mile (mi) equals 0.8689762419 nautical miles (nmi).
How many miles are in a nautical mile?
1 nautical mile (nmi) equals 1.150779448 miles (mi).
How do I convert miles to nautical miles?
Multiply the value in mi by 0.8689762419 to get nmi. To go the other way, multiply nmi by 1.150779448.
What is 10 mi in nautical miles?
10 mi = 8.689762419 nmi.
What is 100 mi in nautical miles?
100 mi = 86.8976241901 nmi.
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