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Acceleration Calculator

Calculate acceleration from velocity change, force & mass, or distance & time. Solve for any kinematic variable — with unit conversions, g-force, and a live velocity-time graph.

5 calculation modes · All kinematic equations · G-force · Live v-t graph · Unit converter

Calculation Mode

Choose what you want to calculate

Velocity & Time
m/s
m/s
s
Velocity Units
Live Result
—
m/s²
ModeΔv / t
G-Force—
ft/s²—
Direction—
Kinematic Equations (SUVAT)
v = u + at1
s = ut + ½at²2
v² = u² + 2as3
s = ½(u+v)t4
s = vt − ½at²5

s=displacement · u=initial vel · v=final vel · a=acceleration · t=time

G-Force Reference
Free fall (Earth)1.0 g
Sneeze~3 g
Fighter pilot turn9 g
F1 braking~5 g
Car crash (30 mph)~30 g
Human limit (brief)~46 g
Moon gravity0.165 g
Mars gravity0.379 g
Common Accelerations
Earth gravity (g)9.81 m/s²
Sports car 0–60 mph~8–12 m/s²
Typical car braking~7–8 m/s²
Bicycle braking~4–5 m/s²
Space Shuttle launch~29 m/s²
Walking pace change~0.5 m/s²