Kilometer is 1000 meter units.
Kilometers to Furlongs Converter — km to fur
Convert Kilometer (km) to Furlong (fur) using the exact conversion factor (1 kilometer = 4.970969538 furlong). See the formula, worked examples, conversion table, history, and common uses.
Kilometers 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 1000 / 201.168.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilometers to Furlongs
Kilometer and Furlong both measure length. Kilometer is most often used for road signage, speed limits, and vehicle odometers outside the us.
Formula
furlongs = kilometers × 4.9709695379
This factor comes from each unit's defined relationship to the category's base unit: 1 kilometer equals 1000 base units, and 1 furlong equals 201.168 base units, so dividing one by the other gives the direct kilometer-to-furlong factor of 4.9709695379.
Simple example
1 km × 4.970969538 = 4.970969538 fur
1 kilometer = 4.970969538 furlongs.
Real-world example
10 km × 4.970969538 = 49.70969538 fur
10 kilometers = 49.70969538 furlongs.
Conversion table
| Kilometer (km) | Furlong (fur) |
|---|---|
| 1 km | 4.970969538 fur |
| 5 km | 24.85484769 fur |
| 10 km | 49.70969538 fur |
| 21.0975 km | 104.8750298 fur |
| 42.195 km | 209.7500597 fur |
| 100 km | 497.0969538 fur |
Reverse conversion: Furlong to Kilometer
4.970969538 fur × 0.201168 = 1 km
4.970969538 furlongs = 1 kilometers.
kilometers = furlongs × 0.201168
For a page dedicated to this direction, see Furlong to Kilometer.
Understanding the Kilometer
Kilometer (km) measures distance. A kilometer is 1,000 meters — the meter is the SI base unit of length. It is classified as a SI derived (metric prefix) unit.
Where it's used: Standard road, distance, and mapping unit in nearly every country except the United States
Uses of the Kilometer today
- Road signage, speed limits, and vehicle odometers outside the US
- Geographic and mapping distances
- Endurance sports (marathons are measured in kilometers internationally, though the marathon distance itself is a fixed value in both systems)
History of the Kilometer
The meter was defined during the French Revolutionary metric reforms as one ten-millionth of the distance from the North Pole to the Equator along a meridian through Paris. 'Kilo-' is simply the SI prefix for 1,000, making the kilometer a direct decimal multiple.
The meter itself has been redefined several times as measurement precision improved — from a physical platinum-iridium bar (1889) to a krypton-86 wavelength (1960) to its current definition (1983) as the distance light travels in a fixed fraction of a second.
Historical origin. Kilometer was not the invention of a single named person; it developed through the process described above.
Understanding the Furlong (fur)
A furlong is 660 feet.
Kilometer — sources
- BIPM — The metre (SI base unit) — Current definition and history of the meter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many furlongs are in 1 kilometer?
1 kilometer equals 4.970969538 furlongs, using the exact defined conversion factor rather than an estimate.
How do I convert kilometer to furlong?
Multiply the kilometer value by 4.970969538. The converter above does this instantly to whatever precision you set.
How do I convert furlong back to kilometer?
Use the reverse factor: 1 furlong equals 0.201168 kilometers. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilometer?
Kilometer (km) measures distance. A kilometer is 1,000 meters — the meter is the SI base unit of length. It is classified as a SI derived (metric prefix) unit.
What is a furlong?
Furlong (fur) is a unit of length.
Is the kilometer to furlong conversion exact?
Yes. Both kilometer and furlong are defined by fixed standards rather than physical artifacts, so the factor of 4.970969538 used above is exact to as many digits as you choose to display.
Where is the kilometer still used today?
Standard road, distance, and mapping unit in nearly every country except the United States