Velocity & Acceleration Calculator (SUVAT)
Solve constant-acceleration motion problems: enter any three of initial velocity, final velocity, acceleration, time and displacement to get the other two.
How to use
- 1Fill in any three of u, v, a, t and s (SI units: m/s, m/s², s, m).
- 2Leave the two unknowns blank.
How it's calculated
v = u + at; s = ut + ½at²; v² = u² + 2as; s = ½(u + v)t; s = vt − ½at².
Frequently asked questions
What do u, v, a, t and s stand for?
Initial velocity, final velocity, acceleration, time and displacement.
What about free fall?
Use a = 9.81 m/s² (downward), or −9.81 if you take upward as positive.
Does this work if acceleration changes?
No — SUVAT equations assume constant acceleration.