# Acceleration Calculator

Use our acceleration calculator to find acceleration using velocity and time.

**Calculate:**

## Acceleration:

### Acceleration Formula

### Final Velocity Formula

### Initial Velocity Formula

### Time Formula

## On this page:

## How to Calculate Acceleration

Acceleration is a fundamental concept in physics and represents the rate of change of velocity with respect to time. Whether it’s a car speeding up, a ball being thrown, or a plane taking off, the principle of acceleration is at work.

Essentially, acceleration tells us how much the velocity of an object changes over a specific period. You can calculate acceleration if you know the initial and final velocity of an object and the time it takes to reach the final velocity.

### Acceleration Formula

The acceleration formula is:

Thus, the acceleration *a* of an object is equal to the difference of the final velocity *v _{t}* and the initial velocity

*v*, divided by the time duration

_{0}*t*.

The difference of the final velocity and initial velocity is sometimes expressed as the change in velocity *Δv* and the time duration is sometimes expressed as *Δt*.

So, the formula to calculate acceleration can also be expressed as:

The acceleration *a* of an object is equal to the change in velocity *Δv* divided by the change in time *Δt*.

**For example,** let’s calculate the acceleration of a car that accelerates from an initial velocity of 20 m/s to a final velocity of 50 m/s over 5 seconds.

## Types of Acceleration

There are a few different types of acceleration:

**Uniform Acceleration:**This is when an object’s velocity changes by the same amount over equal intervals of time. A car going from 0 to 60 mph in 10 seconds and then from 60 to 120 mph in the next 10 seconds is experiencing uniform acceleration.**Non-uniform Acceleration:**In this type, the rate of change of velocity is not constant over time. If that same car went from 0 to 50 mph in 10 seconds and then from 50 to 90 mph in the next 10 seconds, it would be experiencing non-uniform acceleration.**Tangential or Linear Acceleration:**This refers to the acceleration of an object moving in a straight line.**Radial or Centripetal Acceleration:**This is experienced by an object moving in a circular path. It acts towards the center of the circle.

## Common Acceleration Measurement Units

Acceleration is typically measured in *meters per second squared* (m/s²), *feet per second squared* (ft/s²), or *g-force* (g).

In the realm of automotive performance, you might also hear about “zero to sixty” times as a way to describe how quickly a vehicle can accelerate, but it’s not a formal unit of acceleration.

### What is G-Force

G-force, or gravitational force equivalent, is the force of gravity on an object. Earth’s gravitational acceleration is approximately 9.81 m/s².

This is often used as a baseline for comparing other accelerations. For instance, astronauts during a space shuttle launch might experience accelerations up to 3g, meaning three times the force of Earth’s gravity.

## Frequently Asked Questions

### Is it possible for acceleration to be negative?

Yes! Negative acceleration, often called deceleration, means the object is slowing down.

### How is acceleration different from velocity?

While velocity indicates the speed and direction of an object, acceleration indicates the rate at which the velocity itself is changing.

### Can an object be moving if its acceleration is zero?

Absolutely. If an object is moving at a constant velocity, its acceleration is zero. It means the object is neither speeding up nor slowing down.