Convert chain (US survey) to nautical mile (international)
Please provide values below to convert chain (US survey) [ch (US)] to nautical mile (international) [NM], or Convert nautical mile (international) to chain (US survey).
1 ch (US) = 0.0108622247482 NM. To convert chain (US survey) to nautical mile (international), multiply the value by 0.0108622247482; to go the other way, divide by it (1 NM = 92.0621717171 ch (US)). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 ch (US) = 0.0108622247482 NM
- 1 NM = 92.0621717171 ch (US)
- 10 ch (US) = 0.108622247482 NM
- 100 ch (US) = 1.08622247482 NM
How to Convert Chain (Us Survey) to Nautical Mile (International)
1 ch (US) = 0.0108622247482181 NM
Example: convert 15 ch (US) to NM:
15 ch (US) = 15 × 0.0108622247482181 NM = 0.162933371223272 NM
Chain (Us Survey) to Nautical Mile (International) Conversion Table
| chain (US survey) | nautical mile (international) |
|---|---|
| 1 ch (US) | 0.0108622247482 NM |
| 2 ch (US) | 0.0217244494964 NM |
| 3 ch (US) | 0.0325866742447 NM |
| 5 ch (US) | 0.0543111237411 NM |
| 10 ch (US) | 0.108622247482 NM |
| 20 ch (US) | 0.217244494964 NM |
| 50 ch (US) | 0.543111237411 NM |
| 100 ch (US) | 1.08622247482 NM |
| 500 ch (US) | 5.43111237411 NM |
| 1000 ch (US) | 10.8622247482 NM |
Chain (Us Survey)
A U.S. survey chain is a unit of length equal to 66 U.S. survey feet.
History/Origin
The U.S. survey chain is based on the U.S. survey foot, which was slightly different from the international foot. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey chain 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 chain (US survey) in nautical mile (international)?
1 chain (US survey) (ch (US)) = 0.0108622247482 nautical mile (international) (NM).
How do you convert chain (US survey) to nautical mile (international)?
Multiply the chain (US survey) value by 0.0108622247482. For example, 25 ch (US) × 0.0108622247482 = 0.271555618705 NM.
What is 10 chain (US survey) in nautical mile (international)?
10 ch (US) = 0.108622247482 NM.
Which unit is larger, the chain (US survey) or the nautical mile (international)?
The nautical mile (international) is the larger unit: 1 ch (US) equals only 0.0108622247482 NM.