Calculate video watch time at any playback speed for one or more videos, or find a video’s length from its frame count and frame rate (fps).

Enter the length of one video; blank time fields count as zero.

Multiple videos
Blank means one video. Enter a whole number.

Video Time Formula

For the calculator above, watch time = (hours ×3600 + minutes ×60 + seconds) × video count / playback-speed multiplier. At1× the duration is unchanged; faster playback saves time and slower playback adds time. Pauses and buffering are excluded. The following separate reference calculates original runtime from frame count at a constant frame rate.

VT = F / FPS

Variables:

  • VT is the video time (seconds)
  • F is the total number of frames
  • FPS is the frame rate (frames per second)

To calculate the video time, divide the total number of frames by the frame rate (frames per second).

What is Video Time?

Video time is the duration of a video clip, which is determined by the total number of frames in the clip and the frame rate at which it is played back. It is a crucial aspect of video editing and animation, where precise timing is needed to synchronize audio and visual elements or to achieve the desired pacing and rhythm in storytelling.

How to Calculate Video Time?

The following steps outline how to calculate the Video Time.

  1. First, determine the total number of frames (F) in the video clip.
  2. Next, determine the frame rate (FPS) at which the video is played back.
  3. Use the formula from above: VT = F / FPS.
  4. Finally, calculate the Video Time (VT) in seconds.
  5. The example gives2400 /24 =100 seconds. To use the watch-time calculator above, enter100 video seconds and choose a playback speed; at2×, watch time is50 seconds.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total number of frames (F) = 2400 frames

frame rate (FPS) = 24 frames per second