Convert pennyweight to tonne
Please provide values below to convert pennyweight [pwt] to tonne [t], or Convert tonne to pennyweight.
How to Convert Pennyweight to Tonne
1 pwt = 1.55517384e-06 t
Example: convert 15 pwt to t:
15 pwt = 15 × 1.55517384e-06 t = 2.33276076e-05 t
Pennyweight to Tonne Conversion Table
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Pennyweight
The pennyweight (pwt) is a unit of weight traditionally used in measuring precious metals and gemstones, equivalent to 1/20 of a troy ounce or 1.555 grams.
History/Origin
Originating in the medieval period, the pennyweight was used in the troy weight system for weighing gold and silver, especially in the jewelry and precious metals industries. Its use has persisted in certain regions and industries for historical and practical reasons.
Current Use
Today, the pennyweight is primarily used in the jewelry trade and precious metals markets to specify weights of gold, silver, and gemstones, especially in the United States and in contexts where precise measurement of small quantities is required.
Tonne
A tonne (symbol: t) is a metric unit of mass equal to 1,000 kilograms or approximately 2,204.62 pounds.
History/Origin
The tonne was introduced as part of the metric system in the 19th century to standardize measurements of mass globally, replacing various local units with a single, consistent unit.
Current Use
The tonne is widely used internationally in industries such as shipping, manufacturing, and agriculture for measuring large quantities of materials and commodities.