Schwarzschild radius
Calculate Schwarzschild radius instantly with the exact formula and a worked example.
Schwarzschild radius
Masskg
Schwarzschild radius
2.9662km
More about: Schwarzschild radius
What it calculates
The “Schwarzschild radius” calculator computes Schwarzschild radius in km from 1 parameter: mass (kg).
An astronomy calculation for enthusiasts and scientists.
Example calculation
With parameters Mass = 2,000,000,000,000,000,000,000,000,000,000 kg the result is 2.97 km (Rs = 2GM/c²).
How to use
- Enter mass — each field above is adjustable with a slider.
- Schwarzschild radius (km) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Schwarzschild radius calculated?
The Schwarzschild radius calculator computes Schwarzschild radius (in km) from mass. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Schwarzschild radius calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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