Enter the number of seconds of the video and the total time amount of real-time passed into the calculator to determine the playback speed.
Playback Speed Formula
The following formula is used to calculate a playback speed (playback rate).
R = V / T
- Where R is the playback speed/playback rate
- V is the total time in the video that has passed
- T is the total amount of real time that has passed
To calculate a playback speed, divide the total video time by the total amount of real time.
What is playback speed?
A playback speed, also known as a playback rate, is a measure of the rate at which a video is either sped up or slowed down. It’s a ratio of video time to real-time.
How to calculate playback speed?
The following example outlines the steps to calculate a playback speed or playback rate.
First, determine the total amount of time that has passed in the video. For example, if you play a video for “X” amount of real-time, how many seconds does the video player say.
In this case, the video time is 300 seconds.
Next, determine the real-time. This is the amount of time it took in real life to get to 300 seconds in the video.
In this example, the real-time is 150 seconds.
Finally, calculate the playback speed using the formula above:
R = V / T
R = 300 / 150
R = 2 X playback speed