Ounces to Quarters (UK) (oz to qr)

1 ounce equals 0.002232142857 quarters (UK) (rounded).

1 ounce = 0.002232142857 quarters (UK)

How to convert ounces to quarters (UK)

To convert ounces to quarters (UK), multiply the number of ounces by 0.002232142857. The factor is rounded to 10 significant digits. To go the other way, multiply quarters (UK) by 448.

quarters (UK) = ounces × 0.002232142857

Example: 10 ounces = 0.02232142857 quarters (UK).

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)

Quarter (UK) (qr)

Imperial (British)Historical unit (no longer in standard use)

28 pounds (12.7 kg), a quarter of a long hundredweight. A traditional British unit of weight.

Taking one fourth of a larger unit, as the name suggests, produced several quarters in British measure. The mass version is 28 pounds, a quarter of the 112 pound long hundredweight and two stone, which is roughly 12.7 kilograms. The Units of Measurement Regulations 1994 define it as 28 pounds.

A second quarter measured dry goods. Under the Weights and Measures Act 1824 a quarter of grain was eight bushels, or 64 imperial gallons, about 290.95 liters, a size known as the quarter of London since the Latin quarterium Londoniense of Magna Carta. The 1985 Act dropped it as a volume unit. The weight quarter lingers on old anvils and bells stamped in hundredweight, quarters and pounds: an anvil marked 1.1.8, for example, weighs 148 pounds. Four of them make a hundredweight, and eighty make a long ton.

1 quarter (UK) = 12.70058636 kilograms (exactly).

Sources: Wikipedia: Quarter (unit); Wikipedia: Hundredweight

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