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Centripetal Force Calculator
Enter mass, speed and radius — force and acceleration update instantly.
Formula
F = m·v²/r | a = v²/r | g-force = a / 9.80665
Example
A 70 kg rider at 10 m/s on a 2 m radius loop: a = 50 m/s² ≈ 5.1 g — fighter-pilot territory.
FAQ
Which direction does centripetal force point?
Toward the center of the circle. The "centrifugal force" you feel is the reaction — your body's inertia resisting the turn.
How does it scale with speed?
With v²: doubling speed quadruples the required force — the main safety limit for roads and rides.