Convert Carats to Solar Masses
Convert Carats (ct) to Solar Masses (M☉) instantly and accurately.
Conversion Formula
M☉ = ct × 1.005570863e-34
About Carats
A metric carat (ct or CD) is exactly 200 milligrams (0.2 g), the universal standard for weighing gemstones. Established internationally in 1907, it replaced fractionally different regional carat weights previously used in different countries. The total weight of a diamond or colored gemstone is always expressed in carats: a 1.00 ct diamond of excellent cut and color can command over $5,000. The Cullinan diamond, the largest gem-quality rough diamond ever found, weighed 3,106.75 carats.
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
| Carats (ct) | Solar Masses (M☉) |
|---|---|
| 1 ct | 1.006 × 10-34 M☉ |
| 2 ct | 2.011 × 10-34 M☉ |
| 5 ct | 5.028 × 10-34 M☉ |
| 10 ct | 1.006 × 10-33 M☉ |
| 25 ct | 2.514 × 10-33 M☉ |
| 50 ct | 5.028 × 10-33 M☉ |
| 100 ct | 1.006 × 10-32 M☉ |