Enter the initial velocity, final velocity, and total time passed into the calculator to determine the total deceleration. This calculator can also determine the velocities or time given then deceleration and other known variables.

## Declaration Formula

The following equation can be used to calculate the deceleration of an object.

D = vi – vf / t

- D is the deceleration (m/s^2)
- vf is the final velocity (m/s)
- vi is the initial velocity (m/s)
- t is the total time

To calculate the total deceleration, subtract the final velocity from the initial velocity, then divide by the time elapsed.

## Deceleration Definition

Deceleration is defined as the rate of change of the reduction of speed of a moving object.

## Deceleration Example

How to calculate deceleration?

**First, determine the final velocity.**Measure the final velocity of the slowing object.

**Next, determine the initial velocity.**Measure the initial velocity.

**Next, determine the total time.**Measure the total time the object is slowing.

**Finally, calculate the deceleration.**Calculate the deceleration using the equation above.

## FAQ

**What is deceleration?**

Deceleration is the rate at which an object is losing speed. In other words, it’s the same as acceleration but it involves objects slowing down and not speeding up.

**How is deceleration calculator?**

Deceleration is calculate by the formula above using the inital and final velocities along with the time.