Convert pennyweight (troy) to grams

Explanation

From this page you can convert pennyweight (troy) to grams (or dwt to g) simply, by using the application above.

In case you are wondering, to convert from pennyweight (troy) to grams you need to multiply by 1.5552. This factor is calculated using the respective definitions of the two units you can find below.

Formula

1 dwt≈1.5552 g

pennyweight (troy)dwt

dimension	mass
symbol	dwt

The Pennyweight (dwt) is a unit of mass in the Troy weight system.

Definition of the pennyweight

One pennyweight is defined as being equal to 24 grains.

Value in terms of the SI

One pennyweight is exactly equal to 1.55517384 grams.

History

In the symbol, the d is the symbol of the old British penny. It stands for denarius, an old roman coin that was the equivalent of the penny. The other two letters are short for weight.

Troy Units of mass

grain	gr
pennyweight	dwt	24 grains
ounce	oz t	20 pennyweight
pound	lb t	12 ounces

The Troy weight system

The Troy weight system originated in 15th-century England. It is still in use today in the precious metal industry.

The Troy system being based on the grain, and the grain as a subdivision of the pound, it was redefined indirectly by the International Yard and Pound Agreement of 1959.

gramsg

dimension	mass
system	International system of units (SI)
symbol	g
search alias	gm

The gram (g) is a unit of mass in the International System of Units.

Definition of the gram

One gram is equal to 0.001 kilograms.

History

The gram was introduced in 1795 by the French National Convention as "the absolute weight of a volume of pure water equal to that of a cube of one hundredth of a meter side, at melting ice temperature".

It was replaced by the kilogram as the base unit of mass in 1960 for the creation of the SI.

Equivalences

One gram is equivalent to:

SI Mass Units

nanogram	ng	0.000000001
microgram	µg	0.000001
milligram	mg	0.001
gram	g	1
kilogram	kg	1000
megagram	Mg	1000000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.