Pennyweights to Carats
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Conversion Table

How to convert

1 pennyweight (dwt) = 7.7758692 carat (ct). Pennyweight (dwt) is a unit of Weight used in Standard system. Carat (ct) 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.

Carats: A Unit of Weight

Carats are a unit of weight that are used for measuring gemstones and pearls. Carats are derived from the Arabic word qirat, which means a small weight or a seed. The symbol for carat is ct.

How to Convert Carats

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

• To convert carats to ounces, divide by 141.7476. For example, 10 ct = 10 / 141.7476 = 0.071 oz.
• To convert carats to pounds, divide by 2267.962. For example, 20 ct = 20 / 2267.962 = 0.009 lb.
• To convert carats to tons (short), divide by 4535923.7. For example, 50 ct = 50 / 4535923.7 = 0.000011 ton.
• To convert carats to grams, divide by 5. For example, 100 ct = 100 / 5 = 20 g.
• To convert carats to kilograms, divide by 5000. For example, 200 ct = 200 / 5000 = 0.04 kg.
• To convert carats to milligrams, multiply by 200. For example, 25 ct = 25 x 200 = 5000 mg.