Star Luminosity Calculator (Stefan–Boltzmann)
Luminosity, absolute bolometric magnitude and peak wavelength of a star from radius and temperature.
How to use the Star Luminosity Calculator
- Enter or select: Radius, Effective temperature.
- The results (Luminosity, Absolute bolometric magnitude, Peak wavelength (Wien)) are calculated instantly as you type.
- Use “Copy link” to share the calculation with the same input values.
Formula
- L = 4πR²σT⁴