Convert Pennyweights to Newtons
Convert Pennyweights (dwt) to Newtons (N) instantly and accurately.
Conversion Formula
N = dwt × 0.01525104554
About Pennyweights
A pennyweight (dwt or pwt) equals 24 grains or 1/20 of a troy ounce - approximately 1.555 grams. Its name derives from the weight of an English silver penny in the medieval period. Pennyweights are the standard unit used by jewellers and goldsmiths in North America for weighing precious metals: gold, silver, and platinum. When a jeweller quotes the gold weight of a ring or chain, they typically use pennyweights. Gold buyers, refiners, and scrap metal dealers quote prices per pennyweight (often abbreviated 'DWT') when appraising jewellery.
About Newtons
The newton (N) is the SI unit of force, but because weight is technically the gravitational force on a mass, newtons are the scientifically correct unit for what most people call 'weight.' At standard gravity (9.80665 m/s²), 1 kg of mass exerts a weight force of approximately 9.81 N. Scales in physics labs and engineering contexts display results in newtons rather than kilograms. The distinction matters in aerospace and high-altitude contexts: an astronaut's mass stays constant at, say, 70 kg, but their weight in newtons changes from ~686 N on Earth's surface to nearly 0 N in free-fall orbit.
Quick Reference Table
| Pennyweights (dwt) | Newtons (N) |
|---|---|
| 1 dwt | 0.015251 N |
| 2 dwt | 0.0305021 N |
| 5 dwt | 0.0762552 N |
| 10 dwt | 0.15251 N |
| 25 dwt | 0.381276 N |
| 50 dwt | 0.762552 N |
| 100 dwt | 1.5251 N |