Calculate the inward acceleration of circular motion from speed and radius.
Centripetal acceleration points toward the centre of the circle and grows with the square of speed. Expressing it in g is the most intuitive form, since that is what occupants and components actually feel. A centrifuge at a few thousand rpm generates thousands of g, which follows directly from ω²r.
Centripetal Acceleration
a = v² ÷ r, equivalently a = ω² r
a = v² ÷ r, equivalently a = ω² r Centripetal acceleration points toward the centre of the circle and grows with the square of speed. Expressing it in g is the most intuitive form, since that is what occupants and components actually feel.
A centrifuge at a few thousand rpm generates thousands of g, which follows directly from ω²r.
This calculator takes 3 inputs: Speed, Radius, Alternatively, rotational speed. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.