Escape Velocity Calculator
Calculate escape velocity from a spherical body.
Escape Velocity measurements
Enter your values, then calculate.
Result
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Enter your measurements above to calculate.
CategoryPhysics
Inputs2
CalculationIn browser
How to calculate escape velocity
This calculator finds escape velocity from a body's mass and radius.
How the calculation works
Escape velocity = √(2 × G × Mass ÷ Radius), G = 6.6743×10⁻¹¹.
Example
Earth's mass/radius: ≈ 11,186 m/s, matching Earth's known ~11.2 km/s.
Frequently asked questions
How is Result calculated?
Result = sqrt(2 × 0 × [Body mass] ÷ [Body radius]).
Is the Escape Velocity Calculator free to use?
Yes — every calculator on Simple Calculator Tools is free, runs in your browser, and does not require an account.
Quick Insight
Escape Velocity Calculator
Escape velocity = √(2 × G × Mass ÷ Radius), G = 6.6743×10⁻¹¹.
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Your personalized explanation
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Escape Velocity
- Escape velocity depends only on the body being escaped, not the escaping object's mass.
- Same formula for any spherical body given accurate mass and radius.
Common Escape Velocity Mistakes to Avoid
- Assuming escape velocity depends on the escaping object's own mass, when it's actually independent of it.
When to Use This Calculator
This calculator finds escape velocity from a body's mass and radius.
Content reviewed: August 2026 · Robert Threadgill