A surveyor's chain is 66 feet.
Chains to Furlongs Converter — ch to fur
Convert Chain (ch) to Furlong (fur) using the exact conversion factor (1 chain = 0.1 furlong). See the formula, worked examples, and conversion table.
Chains to Furlongs 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 furlong is 660 feet.
Result = input x 20.1168 / 201.168.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Chains to Furlongs
Chain and Furlong both measure length. Specifically: A surveyor's chain is 66 feet, and a furlong is 660 feet.
Formula
furlongs = chains × 0.1
This factor comes from each unit's defined relationship to the category's base unit: 1 chain equals 20.1168 base units, and 1 furlong equals 201.168 base units, so dividing one by the other gives the direct chain-to-furlong factor of 0.1.
Simple example
1 ch × 0.1 = 0.1 fur
1 chain = 0.1 furlongs.
Real-world example
10 ch × 0.1 = 1 fur
10 chains = 1 furlong.
Conversion table
| Chain (ch) | Furlong (fur) |
|---|---|
| 1 ch | 0.1 fur |
| 5 ch | 0.5 fur |
| 10 ch | 1 fur |
| 21.0975 ch | 2.10975 fur |
| 42.195 ch | 4.2195 fur |
| 100 ch | 10 fur |
Reverse conversion: Furlong to Chain
0.1 fur × 10 = 1 ch
0.1 furlongs = 1 chain.
chains = furlongs × 10
For a page dedicated to this direction, see Furlong to Chain.
Understanding the Chain (ch)
A surveyor's chain is 66 feet.
Understanding the Furlong (fur)
A furlong is 660 feet.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many furlongs are in 1 chain?
1 chain equals 0.1 furlongs, using the exact defined conversion factor rather than an estimate.
How do I convert chain to furlong?
Multiply the chain value by 0.1. The converter above does this instantly to whatever precision you set.
How do I convert furlong back to chain?
Use the reverse factor: 1 furlong equals 10 chains. You can also use the swap control in the converter above to flip the direction instantly.
What is a chain?
Chain (ch) is a unit of length.
What is a furlong?
Furlong (fur) is a unit of length.
Is the chain to furlong conversion exact?
Yes. Both chain and furlong are defined by fixed standards rather than physical artifacts, so the factor of 0.1 used above is exact to as many digits as you choose to display.