🚗SUVAT Calculator

Enter any 3 of the 5 kinematics variables — s, u, v, a, t — and solve for the other 2, with full step-by-step working. SI units throughout.

s (m)

u (m/s)

v (m/s)

a (m/s²)

t (s)

Free SUVAT Calculator

Struggling with a constant-acceleration motion problem? Our free SUVAT calculator solves the kinematics equations instantly. Enter any three of the five variables — displacement, initial velocity, final velocity, acceleration, and time — and it works out the other two immediately, no algebra required.

It doesn't just give you numbers: the solver shows exactly which SUVAT equation it used and the full substitution, so you can follow the method step by step — perfect for checking homework or learning the derivation. Tricky cases like negative acceleration (deceleration) and quadratic time solutions are handled and explained clearly, instead of producing a confusing or wrong result.

Whether you're studying for a physics exam or double-checking a mechanics problem, this tool gives you the answer and the reasoning behind it. No sign-up, no downloads, no limits. See the About page or the FAQ for more.