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Pennyweight (dwt) - Unit Information & Conversion

Symbol:dwt
Plural:pennyweights
Category:Weight

What is a Pennyweight?

Definition

The pennyweight (dwt) is a unit of mass in the troy weight system. It is equal to 1/20 of a troy ounce, or 24 grains. It is equivalent to exactly 1.55517384 grams.

History

Historically, the pennyweight was the weight of a silver penny in medieval England. It became part of the standardized troy system used for precious metals and coinage.

Common Uses

  • Jewelry: Used by jewelers and goldsmiths for measuring quantities of precious metals during crafting and valuation.
  • Dentistry: Sometimes used for measuring dental alloys.
  • Ammunition: Historically used for specifying the weight of components in ammunition.

Unit FAQs

How many pennyweights are in a troy ounce?

There are 20 pennyweights (dwt) in 1 troy ounce (oz t).

How many grains are in a pennyweight?

There are 24 grains (gr) in 1 pennyweight (dwt).

How many grams are in a pennyweight?

There are exactly 1.55517384 grams (g) in 1 pennyweight (dwt).

Pennyweight Conversion Formulas

To Kilogram:

1 dwt = 0.001555 kg
Example: 5 pennyweights = 0.007776 kilograms

To Gram:

1 dwt = 1.555174 g
Example: 5 pennyweights = 7.775869 grams

To Milligram:

1 dwt = 1555.17384 mg
Example: 5 pennyweights = 7775.8692 milligrams

To Pound:

1 dwt = 0.003429 lb
Example: 5 pennyweights = 0.017143 pounds

To Ounce:

1 dwt = 0.054857 oz
Example: 5 pennyweights = 0.274286 ounces

To Stone:

1 dwt = 0.000245 st
Example: 5 pennyweights = 0.001224 stones

To Ton (metric):

1 dwt = 0.000002 t
Example: 5 pennyweights = 0.000008 tons

To Ton (US):

1 dwt = 0.000002 ton
Example: 5 pennyweights = 0.000009 US tons

To Ton (UK):

1 dwt = 0.000002 long ton
Example: 5 pennyweights = 0.000008 long tons

To Microgram:

1 dwt = 1555173.84 µg
Example: 5 pennyweights = 7775869.2 micrograms

To Carat:

1 dwt = 7.775869 ct
Example: 5 pennyweights = 38.879346 carats

To Slug:

1 dwt = 0.000107 sl
Example: 5 pennyweights = 0.000533 slugs

To Troy Ounce:

1 dwt = 0.05 oz t
Example: 5 pennyweights = 0.25 troy ounces

To Grain:

1 dwt = 24 gr
Example: 5 pennyweights = 120 grains

To Dram:

1 dwt = 0.877714 dr
Example: 5 pennyweights = 4.388571 drams

To Quintal:

1 dwt = 0.000016 q
Example: 5 pennyweights = 0.000078 quintals

To Atomic Mass Unit:

1 dwt = 9.365475773986226e+23 u
Example: 5 pennyweights = 4.6827378869931133e+24 atomic mass units

To Pavan (India):

1 dwt = 0.194397 pavan
Example: 5 pennyweights = 0.971984 pavan

To Kati (India):

1 dwt = 0.133331 kati
Example: 5 pennyweights = 0.666655 kati

To Masha (India):

1 dwt = 1.706357 masha
Example: 5 pennyweights = 8.531785 masha

To Dina (India):

1 dwt = 24000 dina
Example: 5 pennyweights = 120000 dina

To Pras (India):

1 dwt = 557370.023654 pras
Example: 5 pennyweights = 2786850.118271 pras

To Lota (India):

1 dwt = 892137356585.5897 lota
Example: 5 pennyweights = 4460686782927.949 lota

Convert Pennyweight

Need to convert Pennyweight to other weight units? Use our conversion tool.

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Pennyweight Quick Info

dwt
Symbol:dwt
Category:Weight
System:Various
Convert Pennyweight

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