Convert pennyweight to Planck mass
Please provide values below to convert pennyweight [pwt] to Planck mass [m_P], or Convert Planck mass to pennyweight.
How to Convert Pennyweight to Planck Mass
1 pwt = 71453.9525010682 m_P
Example: convert 15 pwt to m_P:
15 pwt = 15 × 71453.9525010682 m_P = 1071809.28751602 m_P
Pennyweight to Planck Mass Conversion Table
| pennyweight | Planck mass |
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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.
Planck Mass
The Planck mass (m_P) is a fundamental physical constant representing a mass scale derived from natural units, approximately 2.176 × 10^-8 kilograms.
History/Origin
Introduced by Max Planck in 1899 as part of his system of natural units, the Planck mass emerged from combining fundamental constants to define a universal mass scale in theoretical physics.
Current Use
The Planck mass is primarily used in theoretical physics, especially in quantum gravity and high-energy physics, to express natural units and scale phenomena near the Planck scale.