Convert Megatons to Solar Masses
Convert Megatons (Mt) to Solar Masses (M☉) instantly and accurately.
Conversion Formula
M☉ = Mt × 5.027854313e-22
About Megatons
A megaton (Mt) equals one million metric tonnes (10⁹ kg). Nuclear weapon yields are measured in megatons of TNT equivalent: the largest weapon ever detonated, the Soviet Tsar Bomba tested in 1961, had a yield of approximately 50 Mt TNT and produced a fireball 8 km in diameter. Annual global CO₂ emissions are reported in gigatons (Gt), but regional emissions data and specific industrial sectors are quoted in megatons. The Chicxulub asteroid impact that caused the Cretaceous-Paleogene mass extinction released energy equivalent to roughly 100 million Mt of TNT.
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
| Megatons (Mt) | Solar Masses (M☉) |
|---|---|
| 1 Mt | 5.028 × 10-22 M☉ |
| 2 Mt | 1.006 × 10-21 M☉ |
| 5 Mt | 2.514 × 10-21 M☉ |
| 10 Mt | 5.028 × 10-21 M☉ |
| 25 Mt | 1.257 × 10-20 M☉ |
| 50 Mt | 2.514 × 10-20 M☉ |
| 100 Mt | 5.028 × 10-20 M☉ |