A furlong is 660 feet.
Furlongs to Chains Converter — fur to ch
Convert Furlong (fur) to Chain (ch) using the exact conversion factor (1 furlong = 10 chain). See the formula, worked examples, and conversion table.
Furlongs to Chains converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
A surveyor's chain is 66 feet.
Result = input x 201.168 / 20.1168.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Furlongs to Chains
Furlong and Chain both measure length. Specifically: A furlong is 660 feet, and a surveyor's chain is 66 feet.
Formula
chains = furlongs × 10
This factor comes from each unit's defined relationship to the category's base unit: 1 furlong equals 201.168 base units, and 1 chain equals 20.1168 base units, so dividing one by the other gives the direct furlong-to-chain factor of 10.
Simple example
1 fur × 10 = 10 ch
1 furlong = 10 chains.
Real-world example
10 fur × 10 = 100 ch
10 furlongs = 100 chains.
Conversion table
| Furlong (fur) | Chain (ch) |
|---|---|
| 1 fur | 10 ch |
| 5 fur | 50 ch |
| 10 fur | 100 ch |
| 21.0975 fur | 210.975 ch |
| 42.195 fur | 421.95 ch |
| 100 fur | 1,000 ch |
Reverse conversion: Chain to Furlong
10 ch × 0.1 = 1 fur
10 chains = 1 furlong.
furlongs = chains × 0.1
For a page dedicated to this direction, see Chain to Furlong.
Understanding the Furlong (fur)
A furlong is 660 feet.
Understanding the Chain (ch)
A surveyor's chain is 66 feet.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many chains are in 1 furlong?
1 furlong equals 10 chains, using the exact defined conversion factor rather than an estimate.
How do I convert furlong to chain?
Multiply the furlong value by 10. The converter above does this instantly to whatever precision you set.
How do I convert chain back to furlong?
Use the reverse factor: 1 chain equals 0.1 furlongs. You can also use the swap control in the converter above to flip the direction instantly.
What is a furlong?
Furlong (fur) is a unit of length.
What is a chain?
Chain (ch) is a unit of length.
Is the furlong to chain conversion exact?
Yes. Both furlong and chain are defined by fixed standards rather than physical artifacts, so the factor of 10 used above is exact to as many digits as you choose to display.