Orbital Velocity Calculator
Custom Mass & Radius
Select Planet
Formula
v = √(GM/r), where G = 6.674 × 10⁻¹¹ N⋅m²/kg², M is the central body mass, and r is the orbital radius.
Frequently Asked Questions
What is orbital velocity?
Orbital velocity is the speed needed for an object to maintain a stable circular orbit around a celestial body. It depends on the mass of the central body and the orbital radius.
How does orbital radius affect velocity?
Higher orbits require lower velocities. As the orbital radius increases, the required velocity decreases proportionally to 1/sqrt(r).