Smoot to Li (Chinese) Conversion Calculator: Free Online Tool
Convert smoots to li with our free online length converter.
Smoot to Li (Chinese) Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Smoot).
- The converted value in Li (Chinese) will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Smoot to Li (Chinese)
Converting Smoot to Li (Chinese) involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Smoot = 0.0034036 li
Example Calculation:
Convert 10 smoots: 10 × 0.0034036 = 0.034036 li
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 Smoot and a Li (Chinese)?
The Smoot is a non-standard, humorous unit of length created as part of an MIT fraternity prank in October 1958. It is defined by the height of Oliver R. Smoot (MIT class of 1962) at the time of the prank, which was 5 feet 7 inches.
This equates to:
- 67 inches (in)
- 1.7018 meters (m)
- Approximately 1.86 yards (yd)
Unlike standardized units, the Smoot is intrinsically tied to a specific individual's height at a particular moment and serves primarily as a cultural artifact and inside joke, particularly within the MIT community.
The Li (里) is a traditional Chinese unit of distance, often translated as the "Chinese mile". It represents a significantly longer distance than the Chi (Chinese foot) and was historically the primary unit for measuring travel distances and land divisions over large areas.
Traditionally, the Li was defined in relation to smaller units like the Bu (步 - pace) or the Zhang (丈), and ultimately the Chi (尺). Common historical relationships included:
- 1 Li = 300 or 360 Bu
- 1 Bu = 5 or 6 Chi
- Therefore, 1 Li could equal 1500 or 1800 Chi.
- Alternatively, 1 Li = 150 Zhang (since 1 Zhang = 10 Chi).
Like other traditional Chinese units, its exact length varied considerably across different dynasties and regions. The modern standardized value, adopted for convenience and integration with the metric system, defines the Li as exactly 500 meters (0.5 kilometers).
Note: The Smoot is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Li (Chinese) belongs to the imperial/US customary system.
History of the Smoot and Li (Chinese)
The Smoot unit originated in October 1958 during the pledge activities of the Lambda Chi Alpha fraternity at MIT. Pledges were tasked with measuring the length of the Harvard Bridge, which connects Boston and Cambridge, Massachusetts, over the Charles River.
Instead of using conventional measuring tools, the fraternity members decided to use one of their pledges, Oliver Smoot, as the unit of measure. They repeatedly laid him down end-to-end across the bridge, marking off increments in paint. His companions carried him or helped him move for each new measurement.
The final measurement determined the bridge's length to be 364.4 Smoots "plus or minus one ear". The "ear" indicated the uncertainty of the measurement, adding to the absurdity and humor of the event.
The painted markings on the bridge became a local landmark. They have been maintained and periodically repainted over the decades, often unofficially by members of the fraternity or other MIT affiliates. The Cambridge Police Department traditionally tolerates the markings because, among other reasons, they serve as useful reference points for identifying locations along the bridge.
Interestingly, Oliver R. Smoot later became a prominent figure in standards organizations, serving as Chairman of the American National Standards Institute (ANSI) and President of the International Organization for Standardization (ISO), an ironic twist given his namesake unit's non-standard nature.
The Li has been a fundamental unit of distance in China for thousands of years, used since at least the Zhou Dynasty (c. 1046–256 BC). Its length was not constant, often changing with administrative reforms or shifts in the standard length of the base unit, the Chi.
- Early Dynasties: The length fluctuated. For example, during the Han Dynasty, based on a Chi of ~23.1 cm and a definition of 1 Li = 300 Bu = 1800 Chi, the Li would have been approximately 415.8 meters. Other periods might have used different definitions or Chi lengths, leading to Li values ranging roughly from 300 to over 500 meters.
- Standardization Efforts: Various dynasties attempted to standardize measurements, but regional variations often persisted. The Li was crucial for imperial administration, defining tax districts, postal routes, and military logistics.
- 20th Century Standardization: Following the establishment of the Republic of China, efforts were made to align traditional units with the metric system. In 1929, alongside the standardization of the Chi as 1/3 meter, the Li was officially defined as 1500 Chi, which resulted in exactly 500 meters (0.5 kilometers). This standard was maintained by the People's Republic of China.
The Li's historical significance lies in its role as the standard measure for long distances, shaping perceptions of geography and travel within China and neighboring East Asian cultures influenced by the Chinese system.
Common Uses for smoots and li
Explore the typical applications for both Smoot (imperial/US) and Li (Chinese) (imperial/US) to understand their common contexts.
Common Uses for smoots
The Smoot is not used for any official, scientific, or commercial measurements. Its use is primarily cultural and humorous:
- Harvard Bridge Markings: The painted markings on the bridge sidewalk are its most famous application, indicating distance in Smoots from the Boston side. They are a well-known local landmark.
- MIT Culture and Slang: Used humorously within the MIT community and sometimes in the broader Boston area as a quirky local reference.
- Digital Recognition: The unit gained wider recognition when it was included as a unit of measurement in Google Calculator and Google Earth's ruler tool.
- Popular Culture: Occasionally referenced in media or tech circles as an example of a non-standard or humorous unit.
Common Uses for li
While officially replaced by the kilometer for most purposes, the Li retains significance:
- Historical Measurement: Essential for understanding distances mentioned in historical texts, maps, administrative records, travelogues, and descriptions of large-scale projects like the Great Wall or canal systems.
- Geographical Names: Many place names in China incorporate "Li" (e.g., 十里堡 - Shilibao, "Ten Li Fort"), often reflecting historical distances or significance, even if the modern distance doesn't match precisely.
- Cultural References: The Li features prominently in Chinese idioms, proverbs, literature, and poetry, often symbolizing long journeys or vast distances. A famous example is 千里之行,始於足下 (qiān lǐ zhī xíng, shǐ yú zú xià - "A journey of a thousand li begins with a single step").
- Informal Usage: In some rural areas or among older generations, "Li" might still be used informally to refer to a distance of approximately half a kilometer. It can also be used colloquially as a direct synonym for 0.5 km.
- Mapping: Older maps and surveys frequently used the Li.
Frequently Asked Questions
Questions About Smoot (smoot)
How long is a Smoot?
One Smoot is exactly the height of Oliver R. Smoot in 1958:
- 5 feet 7 inches
- 67 inches
- 1.7018 meters
Is the Smoot an official or standardized unit?
No, the Smoot is not an official or standardized unit of measurement in any system (Imperial, US customary, or SI). It is a non-standard, humorous unit originating from a specific event.
Why is the bridge measurement "plus or minus one ear"?
The "plus or minus one ear" (often written as ± εar) reflects the humorous imprecision of the original measurement method using a person. It signifies the margin of error in a whimsical way, possibly referencing the difficulty of the final partial measurement or simply adding to the prank's absurdity.
Are the Smoot markings still on the Harvard Bridge?
Yes, the markings are traditionally repainted periodically (often by Lambda Chi Alpha members) and are considered a fixture of the bridge. During bridge renovations in 2011, the Massachusetts Department of Transportation restored the markings, acknowledging their cultural significance.
How does the Smoot compare to standard units?
- 1 Smoot = 1.7018 meters
- 1 Meter ≈ 0.5876 Smoots
- 1 Smoot = 5.583 feet (5 feet 7 inches)
- 1 Foot ≈ 0.1791 Smoots
Is the Smoot an SI unit?
No, the Smoot is not an SI unit. It is a non-standard, informal unit. The SI base unit for length is the meter (m).
What did Oliver Smoot think of the unit?
Oliver Smoot generally embraced his namesake unit with good humor throughout his life and career, often participating in events related to it at MIT.
About Li (Chinese) (li)
How long is a Li?
The length of the Li varied significantly throughout history, typically ranging from about 400 to over 500 meters. The modern standardized value (since 1929) is:
- Exactly 500 meters (m)
- Exactly 0.5 kilometers (km)
- Approximately 0.3107 miles (mi)
- Approximately 1640.42 feet (ft)
- Approximately 546.81 yards (yd)
How was the Li historically defined?
It was typically defined based on smaller units:
- 1 Li = 300 or 360 Bu (步 - paces)
- Since 1 Bu was often 5 or 6 Chi (尺 - Chinese feet), this meant *1 Li = 1500 or 1800 Chi.
- Alternatively, 1 Li = 150 Zhang (丈), where 1 Zhang = 10 Chi. The variation depended on the specific dynasty, region, and the prevailing standard length of the Chi.
How does the Li relate to the Kilometer?
The modern standardized Li is defined directly in relation to the kilometer:
- 1 Li = 0.5 Kilometers
- 1 Kilometer = 2 Li
Is the Li an SI unit?
No, the Li is not an SI unit. It is a traditional Chinese unit of distance. The SI base unit for length is the meter (m), and the commonly used unit for larger distances is the kilometer (km).
Is the Li still used today?
Officially, China uses the metric system (kilometers and meters) for all legal, commercial, scientific, and administrative purposes. However, the Li continues to be used in:
- Historical and cultural contexts.
- Geographical place names.
- Idioms and literature.
- Informal conversation, often meaning exactly 0.5 km.
Is this related to the surveying Link (li)?
No, they are completely different and unrelated units, despite the similar symbol in some contexts.
- The Chinese Li (里) is a traditional unit of distance, standardized at 500 meters.
- The Gunter's Link (li) is a historical surveying unit from the imperial system, equal to 0.201168 meters (or 7.92 inches).
Conversion Table: Smoot to Li (Chinese)
Smoot (smoot) | Li (Chinese) (li) |
---|---|
1 | 0.003 |
5 | 0.017 |
10 | 0.034 |
25 | 0.085 |
50 | 0.17 |
100 | 0.34 |
500 | 1.702 |
1,000 | 3.404 |
All Length Conversions
Other Units from Length
- Meter (m)
- Kilometer (km)
- Hectometer (hm)
- Decimeter (dm)
- Centimeter (cm)
- Millimeter (mm)
- Inch (in)
- Foot (ft)
- Yard (yd)
- Mile (mi)
- Nautical Mile (NM)
- Micrometer (μm)
- Nanometer (nm)
- Light Year (ly)
- Astronomical Unit (AU)
- Parsec (pc)
- Angstrom (Å)
- Point (Typography) (pt)
- Mil/Thou (mil)
- Fathom (fath)
- Furlong (fur)
- Link (Gunter's) (li)
- Pace (pace)
- Span (span)
- Digit (digit)
- Cable Length (cb)
- Ell (ell)
- Finger (finger)
- Roman Mile (m.p.)
- Stadion (stadion)
- Chi (Chinese) (chi)
- Shaku (Japanese) (shaku)
- Toise (toise)
- Bolt (bolt)
- Rope (rope)
- Sajene (sajene)
- Ken (ken)
- Wa (wa)
- Vara (vara)
- Aln (aln)
- Cubit (Royal/Egyptian) (cubit)
- Versta (versta)
- Arpent (arpent)
- Ri (Japanese) (ri)
- Klafter (klafter)
- Yojana (yojana)
- Skein (skein)