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Calcimator

Black Hole Event Horizon Calculator

Calculate Schwarzschild radius, event horizon, ergosphere, Hawking temperature, and black hole parameters.

Inputs

Solar Masses

Results

Schwarzschild Radius

2,954.127 m

Event Horizon Radius

2,954.127 m

Hawking Temperature

0.000000062 K

Hawking Lifetime

20,973,585,980,140,658,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 years

Ergosphere Radius2,954.127 m
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Formula

r_s = 2GM/c² (Schwarzschild Radius)

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