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Black Hole Temperature Calculator
Hawking temperature, lifetime and luminosity of a black hole from its mass.
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Temperature
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Hawking temperature, lifetime and luminosity of a black hole from its mass.
Black Hole Temperature Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: T = hbar c^3 / (8 pi G M k).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Black Quick Guide
Typical values for reference.
| Mass | Temperature | Lifetime | Note |
|---|---|---|---|
| 1 sun | 6.2e-8 K | 2e67 years | Colder than CMB |
| 10 suns | 6.2e-9 K | 2e70 years | Colder than CMB |
| Moon mass | 1.7 K | 1e45 years | Colder than CMB |
| 1e12 kg | 1.2e11 K | ~3e12 years | Very hot |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Black Hole Temperature Calculator FAQ
Answers to common questions about this calculator.
The temperature of radiation emitted near a black hole horizon.
Temperature falls as mass rises.
T = hbar c^3 / (8 pi G M k).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.