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Calcimator

Stellar Mass Calculator

Calculate stellar mass using mass-luminosity relation, mass-radius relation, and orbital dynamics.

Inputs

Solar Luminosities
Solar Radii
K
days
AU

Results

Estimated Mass

1 Solar Masses

Main Sequence Lifetime

10,000,000,000 billion years

Mass from Luminosity1 Solar Masses
Mass from Radius1 Solar Masses
Mass from Orbit0 Solar Masses
Surface Gravity274.28 m/s²

Estimated Mass

1 Solar Masses

Main Sequence Lifetime

10,000,000,000 billion years

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Luminosity — Stellar luminosity Accepts values from 0.001 Solar Luminosities to 1,000,000 Solar Luminosities (default: 1 Solar Luminosities).
  3. Radius — Stellar radius Accepts values from 0.01 Solar Radii to 1,000 Solar Radii (default: 1 Solar Radii).
  4. Surface Temperature — Effective surface temperature Accepts values from 1,000 K to 100,000 K (default: 5,778 K).
  5. Orbital Period (Binary) — Orbital period for binary system (0 if single star) Accepts values from 0 days to 10,000 days (default: 0 days).
  6. Semi-Major Axis (Binary) — Semi-major axis for binary system Accepts values from 0 AU to 100 AU (default: 0 AU).
  7. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  8. Estimated Mass — shown as a numeric value. This is the primary result of this calculator.
  9. Main Sequence Lifetime — shown as a numeric value. This is the primary result of this calculator.
  10. Mass from Luminosity — shown as a numeric value.
  11. Mass from Radius — shown as a numeric value.
  12. Mass from Orbit — shown as a numeric value.
  13. Surface Gravity — shown as a numeric value.
  14. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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Formula

M ∝ L^(1/3.5) (Mass-Luminosity Relation)

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