Furlong to Ell Converter

Convert furlongs to ells with our free online length converter.

Quick Answer

1 Furlong = 176 ells

Formula: Furlong × conversion factor = Ell

Use the calculator below for instant, accurate conversions.

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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: February 2026Reviewed by: Sam Mathew, Software Engineer

Furlong to Ell Calculator

How to Use the Furlong to Ell Calculator:

  1. Enter the value you want to convert in the 'From' field (Furlong).
  2. The converted value in Ell will appear automatically in the 'To' field.
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How to Convert Furlong to Ell: Step-by-Step Guide

Converting Furlong to Ell involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Furlong = 176 ells

Example Calculation:

Convert 10 furlongs: 10 × 176 = 1760 ells

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Furlong and a Ell?

The Eighth of a Mile

The furlong is defined as exactly 1/8 of a statute mile.

Precise equivalents:

  • 220 yards (1/8 × 1,760 yards)
  • 660 feet (220 yards × 3 feet/yard)
  • 40 rods (traditional surveying unit; 1 rod = 16.5 feet)
  • 10 chains (1 chain = 66 feet = 4 rods)
  • 201.168 meters (exactly, using 1 yard = 0.9144 m)

Old English Etymology

"Furlang" = "furrow-long"

  • Furh (Old English) = furrow (a trench cut by a plow)
  • Lang (Old English) = long

Agricultural origin: In medieval open-field farming, peasants plowed long, narrow strips. The furlong represented the standard length of these strips—the distance a team of oxen could pull a heavy plow before needing to rest and turn around.

Why this specific distance?

  • Oxen stamina: Approximately 220 yards before fatigue
  • Practical turn-around: Long enough to be efficient, short enough to manage
  • Acre relationship: 1 furlong × 1 chain (66 ft) = 1 acre (historical definition)

The Chain-Furlong-Mile System

Edmund Gunter's surveyor's chain (1620):

  • 1 chain = 66 feet = 4 rods = 100 links
  • 10 chains = 1 furlong
  • 80 chains = 1 mile

Why 66 feet? Gunter designed the chain so that:

  • 10 square chains = 1 acre (exactly)
  • Easy conversion between area and distance
  • Practical length for field surveying (two surveyors could carry it)

This system dominated English-speaking land surveys for 300+ years.

The Ell is an historical unit of length, primarily used for measuring cloth and textiles. Its exact length varied considerably depending on the region, country, and time period, making it a non-standardized unit overall, though often legally defined within specific jurisdictions.

It is generally understood to have originated from the length of the arm or forearm, similar to the cubit. The name itself derives from the Proto-Germanic word *alinō, meaning "forearm".

Common historical values demonstrate this variability:

  • English Ell: Traditionally 45 inches (1.25 yards, exactly 1.143 meters). This was the most common ell in England, particularly for measuring imported Flemish cloth.
  • Scottish Ell: Approximately 37.06 inches (about 0.941 meters), based on the standard Scottish inch.
  • Flemish (or Brabant) Ell: Approximately 27 inches (about 0.686 meters). Widely used in the Low Countries, a major center for textile production.
  • French Ell (Aune): Varied, but often around 46.77 inches (about 1.188 meters) in Paris. The aune itself had different lengths in different French regions.
  • Polish Ell (Łokieć): Approximately 22.7 inches (about 0.576 meters).
  • Swedish Ell (Aln): Approximately 23.3 inches (about 0.593 meters).

Note: The Furlong is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Ell belongs to the imperial/US customary system.

History of the Furlong and Ell

Anglo-Saxon Origins (5th-11th Centuries)

Open-field strip farming: Medieval English villages practiced communal agriculture, with fields divided into long, narrow strips assigned to different families.

Strip dimensions:

  • Length: 1 furlong (~220 yards)
  • Width: 1 chain (~22 yards, later standardized to 1 chain = 66 feet / 4 rods)
  • Area: Approximately 1 acre

Plowing practice: Farmers plowed the length of the strip (1 furlong), then turned the ox team at the headland (the unplowed area at each end). The furlong emerged as the natural unit for this plowing distance.

Norman and Plantagenet Standardization (11th-14th Centuries)

Domesday Book (1086): William the Conqueror's land survey used furlongs and acres to catalog English landholdings, cementing these units in law.

Statute of 1305 (Edward I): Formalized the furlong as:

  • 40 rods (1 rod = 16.5 feet = 5.5 yards)
  • 1/8 mile
  • Standard for all land measurement in England

Acre definition: Legally defined as 1 furlong × 4 rods (1 furlong × 66 feet), creating the enduring acre-furlong relationship.

Edmund Gunter and the Surveyor's Chain (1620)

Revolutionary tool: English mathematician Edmund Gunter invented the surveyor's chain, a 66-foot measuring chain with 100 links.

Advantages:

  • Durability: Metal chain resisted wear better than ropes
  • Accuracy: Standardized links prevented stretching errors
  • Calculation ease: 100 links made decimal-like subdivision simple
  • Furlong integration: 10 chains = 1 furlong (exact)

Global spread: Gunter's chain became the standard surveying tool throughout the British Empire, spreading the furlong to:

  • North America (colonial land surveys)
  • Australia (1788 onwards)
  • India (British Raj)
  • Africa (colonial territories)

Horse Racing Adoption (18th Century)

The Jockey Club (founded 1750): British horse racing's governing body standardized race distances in furlongs and miles.

Common race distances established:

  • 5 furlongs: Sprint races
  • 1 mile (8 furlongs): Classic middle distance
  • 1.5 miles (12 furlongs): St. Leger Stakes (established 1776)
  • 2.5 miles (20 furlongs): Royal Ascot Gold Cup

Why furlongs?

  • Traditional British measurement
  • Convenient divisions of the mile
  • Allowed precise race distance specifications
  • Established in racecourse infrastructure (distance poles)

American Horse Racing (19th Century)

Kentucky Derby (1875): Established at 1.5 miles (12 furlongs), later shortened to 1.25 miles (10 furlongs) in 1896. The furlong became America's standard racing measurement.

Belmont Stakes (1867): Originally 1.625 miles, standardized to 1.5 miles (12 furlongs)—the "Test of the Champion."

Preakness Stakes (1873): Run at 9.5 furlongs (1.1875 miles).

All three Triple Crown races use furlong-based distances.

Metrication and Decline (20th Century)

UK Weights and Measures Act (1985): Officially transitioned Britain to metric system for most purposes. The furlong became obsolete for:

  • Road distances (now kilometers)
  • Land surveying (now meters)
  • General measurement (meters standard)

Exception: Horse racing Racing authorities worldwide retained furlongs, grandfathered as a traditional sporting measure.

Modern Persistence (21st Century)

Countries still using furlongs in horse racing:

  • United Kingdom: All thoroughbred racing
  • Ireland: All thoroughbred racing
  • United States: All thoroughbred and quarter horse racing
  • Canada: Thoroughbred racing
  • Australia: Some racing uses furlongs alongside meters
  • Myanmar (Burma): Road signs and general distance measurement

Global standard: Despite metrication, international horse racing maintains furlong terminology for consistency with historical records and tradition.

The ell was a fundamental unit for the textile trade across Europe, flourishing from the medieval period through the early modern era and into the 19th century. Its origins likely lie in anthropomorphic measurements related to the arm, similar to the cubit.

The lack of a universal standard led to numerous regional variations. Different cities, guilds, or nations established their own "standard" ell, often physically represented by a metal rod kept by authorities. This variation could sometimes be a source of trade disputes but also reflected local manufacturing and trade practices.

The English ell of 45 inches (longer than the standard English yard of 36 inches) became particularly well-established, possibly to account for shrinkage or to provide a customary "bonus" measure when selling cloth.

With the rise of standardized measurement systems like the Imperial system (promoting the yard) and especially the Metric system (introducing the meter), the ell gradually became obsolete during the 18th and 19th centuries. Legal reforms in many countries formally abolished it in favor of metric units.

Common Uses and Applications: furlongs vs ells

Explore the typical applications for both Furlong (imperial/US) and Ell (imperial/US) to understand their common contexts.

Common Uses for furlongs

1. Thoroughbred Horse Racing

Race distance specification: Nearly all English-language racing nations specify race lengths in furlongs.

Examples:

  • "A 6-furlong sprint on turf"
  • "The colt won at distances from 8 to 12 furlongs"
  • "She specializes in 5-furlong races"

Racecourse markers: Distance poles along the track show remaining furlongs to the finish (e.g., "4F" pole = 4 furlongs to go).

2. Breeding and Training

Horse pedigrees: Thoroughbred bloodlines are analyzed by optimal racing distances measured in furlongs.

Example: "This stallion's progeny excel at 8-10 furlongs, inheriting his stamina."

Training distances: Trainers describe workout distances in furlongs: "We gave him a strong 6-furlong breeze this morning."

3. Myanmar (Burma)

Road distances: Myanmar road signs often show distances in furlongs and miles rather than kilometers.

Example: "Yangon 12 furlongs" (1.5 miles ahead)

Why? British colonial legacy; Myanmar has resisted full metrication.

4. Historical Documents

Land deeds: Property descriptions in English-speaking countries often reference furlongs:

"Beginning at the oak tree, thence north 3 furlongs, thence east 2 furlongs..."

Literary references: Classic literature mentions furlongs for travel distances.

When to Use ells

The ell is now obsolete but was historically crucial for:

  • Textile Trade: Its primary and defining use was measuring and selling lengths of cloth (wool, linen, silk, etc.). Cloth was often priced and sold "by the ell".
  • Tailoring and Dressmaking: Used by artisans creating garments.
  • Mercantile Records: Appears frequently in historical merchant accounts, inventories, customs documents, and trade records. Understanding the local ell is vital for interpreting these economic historical sources.
  • Land Measurement (Rarely): In some specific, localized contexts, an ell might have been used for land, but this was uncommon compared to units like the rod or chain.
  • Literature and Culture: Referenced in historical texts, literature, and idioms (e.g., "Give him an inch, and he'll take an ell").

Additional Unit Information

About Furlong (fur)

How many furlongs are in a mile?

Exactly 8 furlongs = 1 statute mile.

This is the defining relationship:

  • 1 furlong = 1/8 mile = 0.125 miles
  • 1 mile = 8 furlongs = 1,760 yards = 5,280 feet

How many yards/feet/meters are in a furlong?

1 furlong equals:

  • 220 yards (exactly)
  • 660 feet (220 × 3)
  • 201.168 meters (exactly, using international yard definition)

Derivation: 1 mile = 1,760 yards 1/8 mile = 1,760 ÷ 8 = 220 yards

Where is the furlong used most often today?

Primary use: Horse racing

Countries:

  • United Kingdom: All thoroughbred flat and jump racing
  • Ireland: All racing
  • United States: Thoroughbred and quarter horse racing standard
  • Canada: Thoroughbred racing
  • Australia: Some racing (alongside meters)

Secondary use:

  • Myanmar (Burma): Road distances, general measurement

Historical references:

  • Land deeds and property surveys (historical documents)
  • Classic literature

Is the furlong an SI unit?

No, the furlong is not part of the International System of Units (SI).

It belongs to the imperial and U.S. customary measurement systems. The SI unit for length is the meter.

Legal status:

  • UK: Permitted for specific uses (horse racing, historical contexts)
  • US: Legal, but not commonly used outside racing
  • Myanmar: Customary unit

Why is it called a furlong?

Etymology: Old English "furlang" = "furrow-long"

Origin:

  • Furh = furrow (trench cut by plow)
  • Lang = long

Agricultural meaning: The distance a team of oxen could plow a furrow before needing to rest—approximately 220 yards.

Historical context: Medieval open-field strip farming created long, narrow fields. The furlong defined the standard strip length, while the chain (66 feet) defined the width, producing a 1-acre plot.

Why does horse racing still use furlongs?

Historical tradition: British horse racing standardized on furlongs in the 18th century (Jockey Club, 1750). Racing infrastructure, records, and terminology built around furlongs over 270+ years.

Practical advantages:

  • Convenient divisions: 1 mile divides evenly into 8 furlongs, creating simple race distances (5, 6, 7, 8, 10, 12 furlongs)
  • Global consistency: Using furlongs allows comparison across centuries of racing records
  • Infrastructure: Historic racecourses designed with furlong markers and measurements

Resistance to change: Metrication efforts in the 1970s-1990s met strong resistance from racing traditionalists. The sport successfully lobbied to preserve furlongs as a cultural heritage measure.

How long is the Kentucky Derby in furlongs?

10 furlongs = 1.25 miles = 2,012 meters

History:

  • 1875-1895: 1.5 miles (12 furlongs)
  • 1896-present: 1.25 miles (10 furlongs)

The distance was shortened to 10 furlongs in 1896 and has remained unchanged since, becoming known as "The most exciting two minutes in sports" (approximate finishing time for winners).

What's the difference between a furlong and a chain?

Both are imperial length units, but different sizes:

Furlong:

  • 220 yards = 660 feet = 201.168 m
  • Used for longer distances (racing, field lengths)

Chain (Gunter's chain):

  • 66 feet = 22 yards = 20.1168 m
  • 1 furlong = 10 chains
  • Used for detailed land surveying

Historical relationship: Edmund Gunter designed the chain so that 10 chains = 1 furlong, creating an integrated surveying system.

Can I convert racecourse distances from furlongs to meters?

Yes, multiply by 201.168.

Common conversions:

  • 5 furlongs × 201.168 = 1,006 m (~1 km)
  • 6 furlongs × 201.168 = 1,207 m
  • 8 furlongs × 201.168 = 1,609 m (~1 mile)
  • 10 furlongs × 201.168 = 2,012 m
  • 12 furlongs × 201.168 = 2,414 m

Note: Many international racing jurisdictions use round meter distances (1200m, 1600m, 2000m) rather than exact furlong equivalents.

Is a furlong longer than a kilometer?

No, a furlong is shorter than a kilometer.

Comparison:

  • 1 furlong = 201.168 meters = 0.201 km
  • 1 kilometer = 1,000 meters ≈ 4.97 furlongs (~5 furlongs)

Memory aid: 5 furlongs ≈ 1 kilometer

About Ell (ell)

How long is an Ell?

There is no single fixed length for the ell; it varied significantly by location and time. Some key examples include:

  • English Ell: 45 inches (1.143 m)
  • Scottish Ell: ~37 inches (~0.94 m)
  • Flemish Ell: ~27 inches (~0.69 m)
  • French Aune (Ell): ~47 inches (~1.19 m) Always check the context (region and era) when encountering a measurement in ells. The English ell of 45 inches is often assumed in English-language historical contexts unless otherwise specified.

How does the Ell compare to a Yard?

The English ell (45 inches) is exactly 1.25 times longer than the standard yard (36 inches). However, other ells could be shorter (like the Flemish ell) or have different relationships to the local yard equivalent.

Is the Ell related to the Elbow or Arm?

Yes, the name "ell" derives from Proto-Germanic *alinō ("forearm"), cognate with Latin ulna and Greek ōlénē, all referring to the forearm or elbow. This strongly suggests an origin based on the length of the human arm, similar to the cubit. However, the standardized lengths adopted for trade were often considerably longer than a literal forearm.

Why did the Ell length vary so much?

The variation stemmed from:

  • Lack of Universal Standards: Before the metric system, measurement standards were highly localized.
  • Regional Customs: Different areas developed their own traditional lengths based on local needs and practices.
  • Trade Protectionism: Sometimes, variations were maintained deliberately by guilds or cities.
  • Evolution Over Time: The definition could change even within the same region over centuries.

Is the Ell an SI unit?

No, the ell is not part of the International System of Units (SI). It is an historical, customary unit belonging to various pre-metric systems. The corresponding SI unit for length is the meter (m).

Is the Ell still used today?

No, the ell is obsolete and is not used for any standard commercial, scientific, or practical measurements today. Its use was superseded primarily by the yard (in Imperial/US customary systems) and the meter (in the metric system). Its relevance is now purely historical.

Conversion Table: Furlong to Ell

Furlong (fur)Ell (ell)
0.588
1176
1.5264
2352
5880
101,760
254,400
508,800
10017,600
25044,000
50088,000
1,000176,000

People Also Ask

How do I convert Furlong to Ell?

To convert Furlong to Ell, enter the value in Furlong in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our length converter page to convert between other units in this category.

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What is the conversion factor from Furlong to Ell?

The conversion factor depends on the specific relationship between Furlong and Ell. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Ell back to Furlong?

Yes! You can easily convert Ell back to Furlong by using the swap button (⇌) in the calculator above, or by visiting our Ell to Furlong converter page. You can also explore other length conversions on our category page.

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What are common uses for Furlong and Ell?

Furlong and Ell are both standard units used in length measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our length converter for more conversion options.

For more length conversion questions, visit our FAQ page or explore our conversion guides.

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Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Guide for the Use of SI

National Institute of Standards and TechnologyOfficial US standards for length measurements

SI Brochure

Bureau International des Poids et MesuresInternational System of Units official documentation

Last verified: February 19, 2026