Ounces to Dan (Chinese) (oz to dan)

1 ounce equals 0.0005669904625 dan (Chinese) exactly.

1 ounce = 0.0005669904625 dan (Chinese)

How to convert ounces to dan (Chinese)

To convert ounces to dan (Chinese), multiply the number of ounces by 0.0005669904625. This factor is exact. To go the other way, multiply dan (Chinese) by 1,763.698097 (rounded).

dan (Chinese) = ounces × 0.0005669904625

Example: 10 ounces = 0.005669904625 dan (Chinese).

About these units

Ounce (oz)

US & ImperialCurrent unit

One sixteenth of a pound, exactly 28.349523125 g. Used for food, mail and consumer goods in the US and UK.

A twelfth part is what ounce originally meant. It comes from the Roman uncia, one twelfth of the Roman pound, a word that also gave English the inch. The abbreviation oz does not come from English at all but from the Italian onza or oncia. Over the centuries many regions and trades used different ounces: the English Tower ounce of 29.16 g was abolished by Henry VIII in 1527, and the Dutch ons was redefined as exactly 100 g in 1820.

The avoirdupois ounce used for everyday goods is one sixteenth of a pound, exactly 28.349523125 g or 437.5 grains, the standard in the US and under the UK imperial system. It is not the same as the troy ounce for precious metals, and neither is the fluid ounce, which measures volume. Ounces still describe portions such as steaks and burgers, and they show up in unexpected places: fabric is graded by weight per area, so a 16 oz denim is a heavy cloth, and the copper on a circuit board is specified in ounces, where 1 oz is roughly 34.7 micrometres thick.

1 ounce = 0.02834952313 kilograms (approximately).

Sources: Wikipedia: Ounce; NIST Guide to the SI, Appendix B.8 (mass conversions)

Dan (Chinese) (dan)

ChineseTraditional unit (still used in some regions)

100 jin, or 50 kg in the modern market system. Historically known as the picul; Hong Kong's picul is about 60.48 kg.

Dan means a burden, and the character 擔 shows a person carrying a load on a pole across the shoulders. The same unit is written 石 in older texts and is known in English as the picul, a word borrowed from Malay for carrying something on the shoulder. For most of imperial history a dan was 120 catties, roughly what one porter could manage, and it served for rice, salt, tea and other bulk goods moved by caravan, boat or road.

Because the underlying jin changed from dynasty to dynasty, the dan drifted too. The jin was about 250 g before the Qin, around 220 g under the Eastern Han, about 633 g in the Tang and Song periods, and about 590 g under the Ming and Qing. The Republic of China fixed the market system in 1930 and the People's Republic kept it, so the figure used here is 100 jin of 500 g, or exactly 50 kg. That is a convenient fifty-kilogram sack, and it still appears in farm and grain statistics. Hong Kong kept its own picul of 60.478982 kg.

1 dan (Chinese) = 50 kilograms (exactly).

Sources: Wikipedia: Chinese units of measurement; Wikipedia: Picul; Wikipedia: Catty

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