ONE FORMULA, ONE ANSWER
Centripetal Acceleration Calculator
Check the normal acceleration component in a circular-motion experiment. Choose input units and calculate one value within the stated conditions.
Inputs
Calculations run in this browser. Scientific notation such as 1.2e-3 is supported. Do not group thousands.
Result
Inward acceleration magnitude a_c
Enter values and select Calculate.
a_c = v² / r
Assumptions
Use r>0. This is only the normal component of circular-motion acceleration. Tangential acceleration from changing speed is excluded, so this is not the total acceleration.
Displayed values are floating-point approximations. Measurement uncertainty and design safety factors are not calculated.
Formula references and credits
NaNa Lab created the code, descriptions, icons and preview images. Text, figures and code from the linked references have not been reproduced.
Physical constants: NIST / CODATA 2022. The values of μ₀ and ε₀ are measured recommendations, not exact defining constants. Values and precision notes are in the source record.
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