Pennyweights to Ounces Converter (dwt to oz)
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Convert Ounces to Pennyweights (oz to dwt) ▶

Conversion Table

pennyweights to ounces
dwtoz
10 dwt 0.5486 oz
20 dwt 1.0971 oz
30 dwt 1.6457 oz
40 dwt 2.1943 oz
50 dwt 2.7429 oz
60 dwt 3.2914 oz
70 dwt 3.84 oz
80 dwt 4.3886 oz
90 dwt 4.9371 oz
100 dwt 5.4857 oz
110 dwt 6.0343 oz
120 dwt 6.5829 oz
130 dwt 7.1314 oz
140 dwt 7.68 oz
150 dwt 8.2286 oz
160 dwt 8.7771 oz
170 dwt 9.3257 oz
180 dwt 9.8743 oz
190 dwt 10.4229 oz
200 dwt 10.9714 oz

How to convert

1 pennyweight (dwt) = 0.054857143 ounce (oz). Pennyweight (dwt) is a unit of Weight used in Standard system. Ounce (oz) is a unit of Weight used in Standard system.

Pennyweights: A Unit of Weight

Pennyweights are a unit of weight that are used for measuring precious metals, such as gold, silver and platinum. Pennyweights are derived from the English word penny, which was the name of a coin used in the Middle Ages. The symbol for pennyweight is dwt.

How to Convert Pennyweights

Pennyweights can be converted to other units of weight by using conversion factors or formulas. Here are some examples of how to convert pennyweights to other units of weight in the US customary system and the SI system:

  • To convert pennyweights to avoirdupois ounces, divide by 18.2292. For example, 10 dwt = 10 / 18.2292 = 0.5486 oz.
  • To convert pennyweights to avoirdupois pounds, divide by 291.6667. For example, 5 dwt = 5 / 291.6667 = 0.0171 lb.
  • To convert pennyweights to tons (short), divide by 583333.33. For example, 20 dwt = 20 / 583333.33 = 0.000034 ton.
  • To convert pennyweights to kilograms, divide by 643.0149. For example, 15 dwt = 15 / 643.0149 = 0.0233 kg.
  • To convert pennyweights to grams, divide by 0.643. For example, 25 dwt = 25 / 0.643 = 38.8798 g.
  • To convert pennyweights to milligrams, multiply by 1555.1738. For example, 30 dwt = 30 x 1555.1738 = 46655.214 mg.

Definition of the Ounce

The ounce is defined differently in different systems of measurement. The most common ounce is the international avoirdupois ounce, which is equal to 28.349523125 grams or 437.5 grains. This is the ounce that is used for most purposes, such as measuring food, postal items, fabric, paper and boxing gloves. The avoirdupois ounce is one-sixteenth of an avoirdupois pound, which is defined as 7000 grains.

Another ounce is the international troy ounce, which is equal to 31.1034768 grams or 480 grains. This is the ounce that is used for measuring precious metals and gems, such as gold, silver, platinum and diamonds. The troy ounce is one-twelfth of a troy pound, which is defined as 5760 grains.

A third ounce is the apothecaries’ ounce, which is also equal to 480 grains, but it is divided into eight drams instead of twelve pennyweights like the troy ounce. The apothecaries’ ounce is used for measuring medicines and drugs.

There are also other historical or regional ounces that have different values, such as the Spanish ounce, the French ounce, the Portuguese ounce, the Roman/Italian ounce, the Dutch metric ounce and the Chinese metric ounce.

How to Convert Ounces

Ounces can be converted to other units of weight by using conversion factors or formulas. Here are some examples of how to convert ounces to other units of weight in the US customary system and the SI system:

  • To convert ounces to pounds, divide by 16. For example, 32 oz = 32/16 = 2 lb.
  • To convert ounces to tons (short), divide by 32000. For example, 64000 oz = 64000/32000 = 2 tons.
  • To convert ounces to grams, multiply by 28.349523125. For example, 4 oz = 4 x 28.349523125 = 113.3980925 g.
  • To convert ounces to kilograms, multiply by 0.028349523125. For example, 8 oz = 8 x 0.028349523125 = 0.226796185 kg.
  • To convert ounces to milligrams, multiply by 28349.523125. For example, 2 oz = 2 x 28349.523125 = 56699.04625 mg.
  • To convert ounces to micrograms, multiply by 28349523.125. For example, 1 oz = 1 x 28349523.125 = 28349523.125 µg.



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