Free acceleration calculator for physics. Compute acceleration from velocity change, find final velocity, initial velocity, time, or distance using kinematic equations.
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Our free acceleration calculator helps you solve physics problems involving motion. Calculate acceleration from velocity changes, find final or initial velocity, determine time duration, or compute distance traveled. Perfect for physics students, engineers, and anyone working with motion equations.
Acceleration is the rate of change of velocity with respect to time. It measures how quickly an object speeds up, slows down, or changes direction. Acceleration is a vector quantity with both magnitude and direction. Positive acceleration means speeding up in the direction of motion, while negative acceleration (deceleration) means slowing down.
Acceleration Formula
a = (v - u) / t where v=final velocity, u=initial velocity, t=timeCalculate any kinematic variable: acceleration, final velocity, initial velocity, time, or distance.
Support for m/s², ft/s², km/h/s, and g-force with automatic conversions between all units.
Uses standard physics formulas: v = u + at, s = ut + ½at², and a = (v-u)/t.
Compare your results to real-world accelerations like gravity, car braking, or rocket launches.
Solve kinematics problems for homework, exams, or lab experiments.
Calculate 0-60 times, braking distances, or compare car performance.
Analyze sprint acceleration, throwing motions, or impact forces.
Design systems with specific acceleration requirements or safety limits.
On Earth, the acceleration due to gravity (g) is approximately 9.81 m/s² or 32.2 ft/s². This means a freely falling object increases its velocity by 9.81 m/s every second. The value varies slightly by location and altitude.
Velocity measures how fast an object is moving (speed with direction), while acceleration measures how quickly velocity is changing. You can have high velocity with zero acceleration (constant speed) or zero velocity with non-zero acceleration (momentarily stopped but about to move).
Multiply g-force by 9.80665 m/s². For example, 2g = 2 × 9.80665 = 19.61 m/s². Fighter pilots may experience 9g during maneuvers, which equals about 88 m/s² - nine times normal gravity.
Negative acceleration (or deceleration) occurs when an object slows down. It means the acceleration vector points opposite to the velocity vector. A car braking has negative acceleration. The magnitude tells you how quickly it's slowing down.
Yes! When an object moves at constant velocity (same speed and direction), its acceleration is zero. There's no change in velocity, so the rate of change is zero. This is Newton's First Law in action.
Use the formula s = ut + ½at², where s is distance, u is initial velocity, a is acceleration, and t is time. This accounts for both the initial velocity contribution and the additional distance covered due to acceleration.