Meters to Chi (Chinese) (m to chi)

1 meter equals 3 chi (Chinese) exactly.

1 meter = 3 chi (Chinese)

How to convert meters to chi (Chinese)

To convert meters to chi (Chinese), multiply the number of meters by 3. This factor is exact. To go the other way, multiply chi (Chinese) by 0.3333333333 (rounded).

chi (Chinese) = meters × 3

Example: 10 meters = 30 chi (Chinese).

About these units

Meter (m)

Metric (SI)Current unit

The SI base unit of length. Since 1983 it is defined as the distance light travels in a vacuum in 1/299,792,458 of a second.

Meter comes from the Greek metron, a measure. In 1791 the French National Assembly defined it as one ten-millionth of the distance from the equator to the North Pole along a great circle through Paris, after rejecting the length of a seconds pendulum because that length changes with local gravity. The surveyors Delambre and Méchain measured the meridian arc, and in 1799 a platinum bar known as the Mètre des Archives became the physical standard. NIST notes that this Earth-based meter turned out to be about 0.2 mm shorter than the true pole-to-equator fraction it was meant to represent.

The 1875 Treaty of the Meter created the CGPM and the BIPM to look after common standards, and in 1889 a platinum-iridium prototype bar took over; the original is still kept at the BIPM. In 1960 the meter was tied to 1,650,763.73 wavelengths of an orange-red krypton-86 line, and in 1983 to the speed of light, which made length a quantity derived from the time standard. The 2018 revision reworded that definition without changing the meter's size. NIST offers a handy yardstick for scale: a pace, meaning two steps, is roughly a meter or a yard.

The meter is the reference unit for length on this site.

Sources: BIPM: history of the metre; NIST: the meter and the SI redefinition; Wikipedia: Metre

Chi (Chinese) (chi)

ChineseTraditional unit (still used in some regions)

The Chinese foot, one third of a meter in the modern market system. Ancient chi were much shorter, around 23 cm in the Han dynasty.

Span of the hand between thumb tip and forefinger tip is the origin usually given for the chi, which appeared in the Shang dynasty roughly three thousand years ago. Its size drifted for centuries. Surviving rulers and bronze standards suggest about 23 cm under the Qin and Han, and tables list values between roughly 17 and 20 cm for the Shang and Western Zhou. By the Qing, figures between about 31 and 36 cm were in use depending on trade and region.

A British report of 1864 shows how messy the later situation was: engineers' public works used about 32.3 cm, surveyors about 30.6 cm, and Guangzhou merchants about 37 cm. Republican China fixed the unit against the meter, and the figure used here is the modern market chi of exactly one third of a meter, about 33.3 cm. Ten cun make one chi and ten chi make one zhang. Hong Kong's chek is longer at 0.371475 m, and Taiwan follows the Japanese shaku.

1 chi (Chinese) = 0.3333333333 meters (approximately).

Sources: Wikipedia: Chi (unit); Wikipedia: Chinese units of measurement

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