Convert Solar Masses to Newtons
Convert Solar Masses (M☉) to Newtons (N) instantly and accurately.
Conversion Formula
N = M☉ × 1.950464232e+31
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☉.
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
| Solar Masses (M☉) | Newtons (N) |
|---|---|
| 1 M☉ | 1.95 × 1031 N |
| 2 M☉ | 3.901 × 1031 N |
| 5 M☉ | 9.752 × 1031 N |
| 10 M☉ | 1.95 × 1032 N |
| 25 M☉ | 4.876 × 1032 N |
| 50 M☉ | 9.752 × 1032 N |
| 100 M☉ | 1.95 × 1033 N |