Acceleration Calculator
Calculate acceleration from velocity change, force, or free fall. Includes g-force, distance traveled, centripetal acceleration, and all 4 kinematic equations.
m/s
m/s
s
Acceleration
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Acceleration in g —
Distance Traveled —
Extended More scenarios, charts & detailed breakdown ▾
m/s
m/s
s
Acceleration
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In g-force —
Distance Traveled —
Professional Full parameters & maximum detail ▾
m/s
m/s
s
Linear Motion
Linear Acceleration —
g-Force —
Circular & Angular
Centripetal Acceleration —
Angular Acceleration —
Projectile Motion
Projectile Range —
Max Height (projectile) —
Kinematic Check
v² = u²+2as (check) —
How to Use This Calculator
- Enter the initial velocity (u) and final velocity (v) in m/s.
- Enter the time (t) in seconds.
- Click Calculate to get acceleration, g-force, and distance traveled.
- Use Extended tabs for force-based or free-fall acceleration.
Formula
a = (v − u) ÷ t
g-force = a ÷ 9.80665
Distance: s = (u + v) × t ÷ 2
Example
Example: u = 0 m/s, v = 27.8 m/s (100 km/h), t = 5 s → a = 5.56 m/s² = 0.567 g
Frequently Asked Questions
- Acceleration is the rate of change of velocity: a = (v − u) ÷ t, where v is final velocity, u is initial velocity, and t is time. Its SI unit is m/s².
- 1 g = 9.80665 m/s², the standard gravitational acceleration at Earth's surface. Fighter pilots experience 9g during tight maneuvers; roller coasters typically hit 3–5g.
- Speed (or velocity) measures how fast position changes. Acceleration measures how fast velocity changes. An object can have zero speed but non-zero acceleration (momentarily at rest but starting to move).
- v = u + at; s = ut + ½at²; v² = u² + 2as; s = (u+v)t/2. These relate displacement, initial/final velocity, acceleration, and time for constant acceleration.
- For circular motion, centripetal acceleration a = v²/r points toward the center of the circle, where v is tangential speed and r is radius.