Calculate acceleration, distance, initial velocity or time from three inputs, and estimate stopping distance from speed, reaction time and friction.

Uses the constant-acceleration formula d = v₀t + ½at². Enter the three known values below.

Use a negative value for deceleration (slowing down).

Enter 0 if the object starts from rest.

Calculator Operations Required Inputs
Convert to Acceleration Distance, Initial Velocity, Time
Convert to Initial Velocity Distance, Acceleration, Time
Convert to Time Acceleration, Initial Velocity, Distance
Convert to Distance Initial Velocity, Acceleration, Time

Acceleration to Distance Formula

The following formula can be used to calculate distance from an acceleration.

D = v*t + 1 / 2*a*t²
  • Where D is the distance
  • v is the initial velocity
  • a is the acceleration
  • t is the time.

To calculate distance from acceleration, multiply the initial velocity by the time, then add this to the result of the time squared times the acceleration divided by 2.