Hawking Temperature Calculator

Estimate Hawking temperature using trusted physical constants quickly. Switch units, inputs, and derived thermal outputs. Ideal for students, engineers, and curious space readers today.

Calculator Inputs

Choose which parameter you know.
Defaults are common SI values.
Use scientific notation like 1.054e-34 when needed.
Result appears above after submission.

Formula Used

The Hawking temperature of a non-rotating, uncharged black hole is:

T = ħ c³ / (8π G M kB)

If you know the Schwarzschild radius rs, use:

T = ħ c / (4π kB rs)

Derived outputs: thermal energy kB·T, frequency kB·T / h, and peak wavelength b/T using Wien’s constant b.

How to Use This Calculator

  1. Select Mass or Schwarzschild radius mode.
  2. Enter a positive value and choose the matching unit.
  3. Optionally enable custom constants for research work.
  4. Press Calculate to view results above the form.
  5. Use Download CSV or Download PDF for records.

Example Data Table

Object / Mass Mass (kg) Hawking temperature (K) Schwarzschild radius (m)
Solar-mass black hole (1 M☉) 1.98847e30 6.17e-08 2.953e+03
Earth-mass black hole (1 M⊕) 5.9722e24 2.05e-02 8.87e-03
Micro black hole 1.0e12 1.23e+11 1.49e-15
Tiny micro black hole 1.0e11 1.23e+12 1.49e-16

Values assume SI constants and a Schwarzschild black hole model.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.