Escape Velocity Calculator
Calculate the escape velocity from a celestial body given its mass and radius.
How to Use the Escape Velocity Calculator
- Enter the mass of the celestial body in kg.
- Enter the radius from the centre of mass in metres.
- Click Calculate.
- Review escape velocity in m/s and km/s.
Use Cases
- •Space mission planning
- •Planetary science
- •Astrophysics education
Formula
v_esc = √(2GM / r)
Frequently Asked Questions
How accurate is this calculator?
Results are based on standard scientific formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, seconds) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.