Online Tools

    Centripetal Force Calculator

    Calculate centripetal force, acceleration, g-load, mass, speed or radius for circular motion.

    Enter linear speed directly, one-revolution period, or revolutions per minute.

    Force
    25 N
    Acceleration
    25 m/s²
    2.55 g
    Speed
    5 m/s
    18 km/h
    Radius
    1 m
    Mass
    1 kg
    Angular speed
    5 rad/s
    Period
    1.257 s
    RPM
    47.7
    Explanation
    Centripetal force: 25 N.
    Acceleration: 25 m/s², or 2.55 g.
    Inputs: mass 1 kg, speed 5 m/s and radius 1 m.
    Real-world comparison
    Load of 2.55 g is close to: Roller coaster peak (4 g, strong load).
    Force versus speed
    Mass 1 kg, radius 1 m
    Force grows with the square of speed: twice the speed means four times the force.

    Circular motion force

    Centripetal-force SERPs expect the standard circular-motion relationships plus unit-friendly speed inputs such as linear speed, period and RPM.

    Fc is centripetal force, m mass, v tangential speed and r radius.

    omega is angular speed in radians per second.

    Centripetal is inward

    Centripetal force is not a separate new interaction. It is the inward net force required to keep an object moving in a circular path.

    Frequently Asked Questions

    Sources and References

    Calculations are based on the listed reference sources. Links open in a new tab.

    Updated:

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