Stefan–Boltzmann Law Calculator
M = εσT⁴, P = M·A
How to Use This Calculator
1
Enter T, A, ε
Provide temperature in kelvin, area in m², and emissivity.
2
Calculate
We compute radiant exitance and total radiated power.
Formula
M = εσT⁴
P = M · A
About Stefan–Boltzmann Law Calculator
Computes thermal radiation power of a surface using emissivity-adjusted σT⁴ law.
Frequently Asked Questions
What is emissivity?
A material property 0–1; ε=1 is an ideal blackbody.
View factors or surroundings included?
No. This gives idealized emission from the surface only.