Square Feet to Qing (Chinese) (ft² to qing)

1 square foot equals 0.0000013935456 qing (Chinese) exactly.

1 square foot = 0.0000013935456 qing (Chinese)

How to convert square feet to qing (Chinese)

To convert square feet to qing (Chinese), multiply the number of square feet by 0.0000013935456. This factor is exact. To go the other way, multiply qing (Chinese) by 717,594.0278 (rounded).

qing (Chinese) = square feet × 0.0000013935456

Example: 10 square feet = 0.000013935456 qing (Chinese).

About these units

Square Foot (ft²)

US & ImperialCurrent unit

Exactly 0.09290304 m². The standard unit for floor areas and real estate in the US, UK and India.

Feet came first, and they were not all the same length. As a body-based unit, the foot ranged historically between about 250 and 335 millimeters, with ancient Greek and Roman feet near 300 mm. In medieval England a statute foot was set at 10/11 of an older Belgic foot, and Charlemagne's attempt around 790 to standardize units largely failed. The square foot is simply that length squared, so its size changed along with the foot.

The 1959 international agreement fixed the foot at exactly 0.3048 meter, so one square foot is exactly 0.09290304 m², or 144 square inches. The United Kingdom adopted the new foot in 1964. Today the square foot is the usual way of listing property in the United States, Canada, the United Kingdom, India, Pakistan, Singapore and Hong Kong, although the measuring convention varies: agents may measure corner to corner, subtract unheated space, or add heated space that extends beyond the end-to-end measurement. The world's smallest park has been reported at 2.6 sq ft.

1 square foot = 0.09290304 square meters (exactly).

Sources: Wikipedia: Square foot; Wikipedia: Foot (unit); NIST Guide to the SI, Appendix B.8: conversion factors

Qing (Chinese) (qing)

ChineseTraditional unit (still used in some regions)

100 mu: about 6.67 hectares (66,667 m²). A traditional Chinese land unit.

Where the mu suits a family plot, the qing counts large holdings. It is defined as 100 mu, which comes to 6.67 hectares in the modern market system, or about 16.47 acres. Wikipedia glosses it in English as the Chinese hide, borrowing an old English term for a household's farmland.

Its size depends entirely on the mu beneath it. With the 1915 mu of 614.4 m² a qing was about 6.1 hectares, and with the 1930 mu of 666.67 m² it is the figure used here. Older dynasty values were smaller still, as the Han mu worked out to only about 461 m². The qing is now mostly a historical and literary term, and Chinese agriculture reports land in mu, hectares or, for large areas, in ten thousands of mu.

1 qing (Chinese) = 66,666.66667 square meters (approximately).

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

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