Convert mile (US survey) to nautical mile (international)

Please provide values below to convert mile (US survey) [mi (survey)] to nautical mile (international) [NM], or Convert nautical mile (international) to mile (US survey).

1 mi (survey) = 0.868977979857 NM. To convert mile (US survey) to nautical mile (international), multiply the value by 0.868977979857; to go the other way, divide by it (1 NM = 1.15077714646 mi (survey)). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 mi (survey) = 0.868977979857 NM
  • 1 NM = 1.15077714646 mi (survey)
  • 10 mi (survey) = 8.68977979857 NM
  • 100 mi (survey) = 86.8977979857 NM



How to Convert Mile (Us Survey) to Nautical Mile (International)

1 mi (survey) = 0.868977979856587 NM

Example: convert 15 mi (survey) to NM:
15 mi (survey) = 15 × 0.868977979856587 NM = 13.0346696978488 NM


Mile (Us Survey) to Nautical Mile (International) Conversion Table

mile (US survey) nautical mile (international)
1 mi (survey) 0.868977979857 NM
2 mi (survey) 1.73795595971 NM
3 mi (survey) 2.60693393957 NM
5 mi (survey) 4.34488989928 NM
10 mi (survey) 8.68977979857 NM
20 mi (survey) 17.3795595971 NM
50 mi (survey) 43.4488989928 NM
100 mi (survey) 86.8977979857 NM
500 mi (survey) 434.488989928 NM
1000 mi (survey) 868.977979857 NM

Mile (Us Survey)

The U.S. survey mile is a unit of length equal to 5,280 U.S. survey feet.

History/Origin

The U.S. survey foot was defined such that 1 meter is exactly 39.37 inches. This made the U.S. survey mile slightly longer than the international mile. The use of the survey foot was officially phased out in 2022.

Current Use

The U.S. survey mile was used for land surveying in the United States.


Nautical Mile (International)

The international nautical mile is a unit of length used in marine and air navigation, defined as exactly 1,852 meters.

History/Origin

Historically, a nautical mile was defined as one minute of arc of latitude. The international nautical mile was defined by the First International Extraordinary Hydrographic Conference in Monaco in 1929. The United States adopted it in 1954, and the United Kingdom in 1970.

Current Use

The nautical mile is used for maritime and aviation purposes worldwide.


Frequently Asked Questions

What is 1 mile (US survey) in nautical mile (international)?

1 mile (US survey) (mi (survey)) = 0.868977979857 nautical mile (international) (NM).

How do you convert mile (US survey) to nautical mile (international)?

Multiply the mile (US survey) value by 0.868977979857. For example, 25 mi (survey) × 0.868977979857 = 21.7244494964 NM.

What is 10 mile (US survey) in nautical mile (international)?

10 mi (survey) = 8.68977979857 NM.

Which unit is larger, the mile (US survey) or the nautical mile (international)?

The nautical mile (international) is the larger unit: 1 mi (survey) equals only 0.868977979857 NM.



Convert mile (US survey) To Other Length Units