Units & Conversion · 市制单位 · Updated 2026-10-25
What Is Chinese Traditional Units?
Definition
PRC market units are exactly defined: 1 jin = 500g = 10 liang; 1 li = 500m; 1 chi ≈ 33.3cm; 1 mu ≈ 666.7m². Hong Kong’s jin (605g) differs by 21% — check the context.
Formula
1 jin = 500g = 10 liang; 1 mu ≈ 666.7 m²; 1 hectare = 15 mu
Worked Example
8 yuan/jin = 16 yuan/kg; “three qian” is 15g on the mainland but 11.25g in Taiwan’s pharmacopoeia.
Common Misconception
"Half a jin = eight liang is just a figure of speech" - it was literally true under the old 16-liang system; "mu to square meters: multiply by 666" - the exact value is 666.67, and errors amplify on large plots.
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