Acceleration Calculator
Works out how hard something speeds up or slows down.
Acceleration
— m/s²
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
In feet — ft/s²
In g — g
Time taken —
Distance covered —
Reading this —
The formula
a = (v − u) ÷ t a = (v² − u²) ÷ (2s)
u is the starting speed, v the final speed, t the time and s the distance.
What to watch out for
Use the distance option when you know how far it took, as with a braking distance or a runway. These are speeds, so neither can be negative. If the direction reverses, as in a bounce, use the SUVAT calculator, which takes signed velocities.
Frequently Asked Questions
What is the acceleration of 0–100 km/h in 8 s?
3.472 m/s², about 0.35 g.
What is 1 g?
9.80665 m/s², the standard acceleration due to gravity.