Chi (Chinese) to Ell Conversion Calculator: Free Online Tool

Convert chi to ells with our free online length converter.

Chi (Chinese) to Ell Calculator

Chi (Chinese)
Ell

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Chi (Chinese)).
  2. The converted value in Ell will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Length category.
  4. Click the swap button (⇌) to reverse the conversion direction.

How to Convert Chi (Chinese) to Ell

Converting Chi (Chinese) to Ell involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Chi (Chinese) = 0.291601 ells

Example Calculation:

Convert 10 chi: 10 × 0.291601 = 2.91601 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 Chi (Chinese) and a Ell?

The Chi (尺) is a traditional Chinese unit of length, often translated as the "Chinese foot". It served as a fundamental base unit within the traditional Chinese system of weights and measures (度量衡, dùliànghéng).

The Chi is traditionally subdivided and multiplied as follows:

  • 1 Zhang (丈) = 10 Chi
  • 1 Chi (尺) = 10 Cun (寸 - Chinese inch)
  • 1 Cun (寸) = 10 Fen (分 - Chinese line)

While sometimes called the "Chinese foot", its length has historically varied significantly and is generally longer than the imperial foot. The modern standardized value is exactly 1/3 of a meter.

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 Chi (Chinese) 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 Chi (Chinese) and Ell

The Chi has been used in China for millennia, with its length undergoing numerous changes across different dynasties and regions. Archaeological evidence suggests its use dates back to the Shang Dynasty (c. 1600–1046 BC).

  • Early Dynasties: Lengths varied, often based on standards set by the ruling government. For example, the Chi during the Han Dynasty (206 BC – 220 AD) was around 23.1 cm, while during the Tang Dynasty (618–907 AD), it was closer to 30.7 cm.
  • Later Dynasties: Variations continued. During the Qing Dynasty (1644–1912), different standards existed for different trades, such as a gongchéng chi (工尺) for engineering (approx. 32 cm) and a cáiféng chi (裁縫尺) for tailoring (approx. 35.5 cm).
  • 20th Century Standardization: In the Republic of China era (1912–1949), efforts were made to standardize traditional units with the metric system. In 1929, the Chi was officially defined as exactly 1/3 of a meter (33.33... cm). This standard was largely retained by the People's Republic of China after 1949.

Unlike some Western units (like the foot or digit), the Chi's connection to direct anthropomorphic measurement (like the length of a forearm or foot) is less clear and likely became conventionalized early in its history.

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 for chi and ells

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

Common Uses for chi

Historically, the Chi was ubiquitous in Chinese society. Its modern usage is less common but persists in specific areas:

  • Historical Measurement: Essential for understanding dimensions in ancient and imperial Chinese architecture, engineering projects (like canals and walls), land surveying (often in conjunction with the Bu 步 and Li 里), and everyday objects.
  • Textile Measurement: Used for measuring cloth lengths, similar to the Western ell or yard. The tailor's chi (裁縫尺) was specifically used for this.
  • Traditional Crafts: Still used in some traditional arts and crafts, such as calligraphy, painting, furniture making, and seal carving, where traditional proportions are valued.
  • Traditional Chinese Medicine (TCM): The cun (1/10th of a chi) is used as a proportional body measurement unit (known as the body inch) to locate acupuncture points. The patient's own body proportions determine the length of their cun.
  • Cultural Context: Appears frequently in historical texts, literature, idioms (e.g., 得寸進尺, dé cùn jìn chǐ - "gain an inch, advance a foot," meaning to become greedy), and cultural practices.
  • Informal Measurement: In some contexts, particularly among older generations or in rural areas, informal measurements might still reference the chi or cun.

Common Uses for 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").

Frequently Asked Questions

Questions About Chi (Chinese) (chi)

How long is a Chi?

The length of the Chi has varied significantly throughout history. Key values include:

  • Han Dynasty: ~23.1 cm (~9.1 inches)
  • Tang Dynasty: ~30.7 cm (~12.1 inches)
  • Modern Standardized Value (since 1929): Exactly 1/3 of a meter.
    • This equals 33.33... centimeters (cm).
    • Approximately 13.12 inches (in).
    • Approximately 1.094 feet (ft).

What are the subdivisions and multiples of the Chi?

The traditional system is decimal:

  • Subdivisions: 1 Chi = 10 Cun (寸); 1 Cun = 10 Fen (分).
  • Multiples: 1 Zhang (丈) = 10 Chi. Another important related unit is the Li (里), standardized as 150 Zhang or 1500 Chi (historically varied, now 500 meters).

How does the Chi relate to the Meter?

Since 1929, the Chi has been officially defined in relation to the meter:

  • 1 Chi = 1/3 Meter
  • 1 Meter = 3 Chi

Is Chi related to other East Asian units?

Yes, the Chi is the historical basis for similar traditional length units in neighboring countries, which evolved independently over time:

  • Japan: Shaku (尺) - Modern standardized value is 10/33 meters (approx. 30.3 cm).
  • Korea: Cheok (척) or Ja (자) - Modern standardized value is also 10/33 meters (approx. 30.3 cm).
  • Vietnam: Thước - Various historical values, sometimes aligned with Chinese standards.

Is the Chi an SI unit?

No, the Chi is not an SI unit. It is a traditional Chinese unit. The SI base unit for length is the meter (m).

Is the Chi still used today?

Officially, China uses the metric system (SI units) for all legal, commercial, and scientific purposes. However, the Chi (and its subdivision, the Cun) still sees use in:

  • Traditional crafts and arts.
  • Traditional Chinese Medicine (TCM) for body measurements.
  • Cultural and historical contexts.
  • Informal measurements in some communities.
  • The term "Chi" might sometimes be used colloquially to refer to 1/3 of a meter.

Where does the name 'Chi' and the character 尺 come from?

The character 尺 is a pictogram. Its earliest forms are thought to depict a hand stretching out or a measuring tool. Its exact etymological origin related to a specific body part is debated, but it has represented this fundamental unit of length for millennia.

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: Chi (Chinese) to Ell

Chi (Chinese) (chi)Ell (ell)
10.292
51.458
102.916
257.29
5014.58
10029.16
500145.801
1,000291.601

All Length Conversions

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