Furlong Converter
Convert furlong between units instantly. Includes conversion tables, common equivalents, and calculation formulas. Free to use with no signup required.
Reviewed for accuracy by Manoj Kumar, Mathematics Educator
Furlong Converter
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Formula: 1 Furlong = 201.168 meters = 220 yards = 660 feet = 1/8 mile
Worked example โ 10 furlongs = 2,011.68 m = 2.012 km = 1.25 miles = 2,200 yards
Formula
1 Furlong = 201.168 meters = 220 yards = 660 feet = 1/8 mile
The furlong is defined as exactly 201.168 meters through the international yard agreement. All conversions pass through meters as the base unit. One furlong equals 10 chains, 40 rods, or 1/8 of a statute mile.
Worked Examples
Example 1: Kentucky Derby Distance Conversion
Problem:The Kentucky Derby is run over 10 furlongs. Convert this to meters, kilometers, miles, and yards.
Solution:10 furlongs x 201.168 m/furlong = 2,011.68 meters 2,011.68 / 1,000 = 2.01168 kilometers 10 furlongs / 8 furlongs per mile = 1.25 miles 10 furlongs x 220 yards/furlong = 2,200 yards 10 furlongs x 660 feet/furlong = 6,600 feet
Result:10 furlongs = 2,011.68 m = 2.012 km = 1.25 miles = 2,200 yards
Example 2: Marathon to Furlongs
Problem:A marathon is 42,195 meters. How many furlongs is that?
Solution:42,195 meters / 201.168 meters per furlong = 209.714 furlongs Or: 42,195 / 1609.344 = 26.2188 miles 26.2188 x 8 = 209.75 furlongs Closest whole furlongs = 210 furlongs 210 furlongs = 42,245.28 meters (50 meters more than a marathon)
Result:Marathon = 209.71 furlongs = approximately 210 furlongs
Frequently Asked Questions
What is a furlong and where did the measurement originate?
A furlong is a unit of length equal to one-eighth of a mile, 220 yards, 660 feet, or exactly 201.168 meters. The word comes from the Old English words 'furh' meaning furrow and 'lang' meaning long. It originally represented the length of a furrow that a team of oxen could plow in a medieval open field before needing to turn. This standardized plot was approximately 40 rods or 10 chains long. The furlong became an official English unit of measurement and was incorporated into the statute mile in 1593 when Queen Elizabeth I defined the mile as 8 furlongs. Today the furlong survives primarily in horse racing where track distances are still commonly expressed in furlongs throughout the United Kingdom, United States, and other countries with thoroughbred racing traditions.
Why are furlongs still used in horse racing today?
Furlongs remain the standard unit for horse racing distances because the sport has deep historical roots in British tradition dating back centuries. Race distances were originally measured across open fields where the furlong was a natural measurement unit. The convention persisted as formal racetracks were established, and changing to metric measurements would disrupt the entire historical record of race times, track records, and handicapping data. In the United States, the Kentucky Derby is famously 10 furlongs or 1 and 1/4 miles. Sprints are typically 5 to 7 furlongs while distance races range from 8 to 16 furlongs. Furlong markers called poles are placed around the track, with the quarter pole being 2 furlongs from the finish and the half-mile pole at 4 furlongs. This tradition shows no signs of changing despite metric conversion in most other domains.
How does a furlong relate to other imperial and historical measurements?
The furlong sits within a coherent system of related imperial measurements based on land surveying. One furlong equals 10 chains, where each chain is 66 feet as defined by Edmund Gunter in 1620. One furlong also equals 40 rods or poles, where each rod is 16.5 feet. Eight furlongs make one statute mile of 5,280 feet. A square furlong, which is one furlong by one furlong, equals 10 acres, creating a direct link between linear and area measurements. This relationship was fundamental to medieval English land management where a strip of farmland was typically 1 furlong long by 1 chain wide, equaling exactly 1 acre. The chain became the basis of the American Public Land Survey System that divided much of the United States into sections and townships.
How do you convert between furlongs and metric units?
Converting furlongs to metric units uses the exact conversion factor of 1 furlong equaling 201.168 meters. To convert furlongs to meters, multiply by 201.168. To convert furlongs to kilometers, multiply by 0.201168. To go from meters to furlongs, divide by 201.168. For quick mental estimates, 1 furlong is approximately 200 meters or one-fifth of a kilometer. Five furlongs is almost exactly 1 kilometer with only about 6 meters difference. This makes the 5-to-1 ratio useful for quick approximations. For precise scientific or engineering work, use the exact value since the furlong is defined through the international yard agreement of 1959 where 1 yard equals exactly 0.9144 meters, making 1 furlong exactly 201.168 meters with no rounding involved.
What other unusual or archaic length units are related to the furlong?
The furlong connects to a fascinating family of historical length units. The chain at 66 feet was the standard surveying unit used with Gunter's chain, a physical chain of 100 links. The rod, pole, or perch at 16.5 feet was the standard unit for measuring agricultural land and is still used in some US property descriptions. The ell was approximately 45 inches and used in textile measurement. The league, roughly 3 miles or 24 furlongs, was the distance a person could walk in one hour. The fathom at 6 feet measured water depth. The hand at 4 inches still measures horse height. The cable at 100 fathoms or 600 feet measured nautical distances. Many of these units persisted because they related to practical human-scale activities like plowing, walking, or measuring cloth, making them more intuitive than abstract metric units in their original contexts.
References
Reviewed for accuracy by Manoj Kumar, Mathematics Educator ยท Editorial policy
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