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By default, this online acceleration calculator computes the uniform acceleration for the speed reached in a given time. It does not use the well-known rules of thumb from driving school. Instead, the calculation is performed with the exact formulas from physik which can be found below the calculator.
By default, the mean acceleration from 0 to 100 km/h in a time of 3 seconds and the required distance are calculated. Of course the default values can be changed at any time.
Under "vehicle choice" you will find suitable values for road and rail vehicles.
* This value is automatically entered by selecting the vehicle, can be changed as required anytime!
** Mean acceleration. For deceleration set a minus in front of the number!
Further functions: Enter a number in three of the five fields and press calculate!
|bicyclist - mean acceleration 0 - 20 km/h||1|
|mid-range car - mean acceleration 0 - 100 km/h||3|
|sports car - mean acceleration 0 - 100 km/h||9|
|underground Vienna - mean acceleration 0 - 40 km/h||1.25|
|tram Vienna (ULF) - mean acceleration||1.3|
|ÖBB 4020 (city train Vienna) - starting acceleration||0.7|
|Siemens Desiro ML, ÖBB 5022 - starting acceleration||1.1|
|acceleration of gravity||9.81|
|mean acceleration a|
|with starting velocity||(v - v0)/t||2·s/t² - 2·v0/t||(v² - v0²)/(2·s)||2·v/t - 2·s/t²|
|without starting velocity (v0 = 0)||v/t||2·s/t²||v²/(2·s)|
|a:||acceleration in m/s²|
|v0:||starting velocity in m/s|
|v:||final velocity in m/s|
|s:||distance in m|
|t:||times in s|
A car needs 5 seconds to reach a speed of 100 km/h. What is the mean acceleration?
First you have to convert 100 km/h in m/s. Just divide 100 by 3.6: 100/3.6 = 27.7 m/s. Then take the formula in the 2nd column, 3rd line and plug in the values:
a = v/t = 27.7/5 = 5.5 m/s²
The mean acceleration from 0 to 100 km/h is about 5.6 m/s².
Page created on 07 June 2019. Last change: 16 September 2020.