Convert Pennyweights to Solar Masses
Convert Pennyweights (dwt) to Solar Masses (M☉) instantly and accurately.
Conversion Formula
M☉ = dwt × 7.819187499e-34
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 Solar Masses
A solar mass (M☉) is the mass of our Sun - approximately 1.989 × 10³⁰ kg - and is the standard unit for measuring stellar and galactic masses in astronomy. The Sun contains 99.86% of the total mass of the Solar System. Stellar evolution models describe stars of 0.08 M☉ (the minimum for hydrogen fusion) to over 200 M☉ (the most massive known stars). Supermassive black holes at the centres of galaxies range from millions to billions of solar masses: the black hole at the centre of the Milky Way (Sagittarius A*) is approximately 4.3 million M☉.
Quick Reference Table
| Pennyweights (dwt) | Solar Masses (M☉) |
|---|---|
| 1 dwt | 7.819 × 10-34 M☉ |
| 2 dwt | 1.564 × 10-33 M☉ |
| 5 dwt | 3.91 × 10-33 M☉ |
| 10 dwt | 7.819 × 10-33 M☉ |
| 25 dwt | 1.955 × 10-32 M☉ |
| 50 dwt | 3.91 × 10-32 M☉ |
| 100 dwt | 7.819 × 10-32 M☉ |