Time-Lapse Multiple

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Time-Lapse Multiple Calculation:

  •  h =
    Capture Hours

    Hours in the original capture duration.

  •  m =
    Capture Minutes

    Minutes in the original capture duration.

  •  s =
    Capture Seconds

    Seconds in the original capture duration.

  •  x =
    Speed-Up Multiplier

    How many times faster the final clip should appear than real time.

  •  fr =
    Frame Rate

    Target playback frame rate in frames per second.

  •  f =
    Total Frames

    Approximate number of frames needed in the output clip.

  •  h =
    Final Hours

    Hours in the final time-lapse clip.

  •  m =
    Final Minutes

    Minutes in the final time-lapse clip.

  •  s =
    Final Seconds

    Seconds in the final time-lapse clip.

  • Decimals

    Choose the number of decimals to show in your answer. This is also known as significant figures. Select an appropriate amount of significant figures based on the precision of the input numbers.

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Time-Lapse Multiple Formula

A speed-up multiple tells you how much shorter the final clip should be than the original capture. Divide the capture duration by the multiple, then multiply the final duration by the frame rate to estimate total frames.

final seconds = capture seconds / multiple

total frames = final seconds x frame rate

Live Diagram

The bars compare the original capture duration with the shortened time-lapse clip.

Time-Lapse Multiple Variables

Capture Hours, Minutes, Seconds
The original real-world duration of the capture.
Speed-Up Multiplier
How many times faster the final clip should appear.
Frame Rate
The playback rate of the finished clip in frames per second.
Total Frames
The approximate number of frames in the final clip.
Final Hours, Minutes, Seconds
The duration of the finished time-lapse clip.

How the Calculation Works

  1. Convert the capture duration to total seconds.
  2. Divide by the chosen speed-up multiple to get final clip seconds.
  3. Multiply the final clip seconds by the frame rate to estimate total frames.
  4. Convert the final clip seconds back to hours, minutes, and seconds.

Time-Lapse Multiple Example

How long is the final clip if 2 hours of footage are sped up 30x at 30 fps?

  • capture seconds = 2 x 3600 = 7200
  • final seconds = 7200 / 30 = 240
  • total frames = 240 x 30 = 7200
  • final clip = 4 minutes, 0 seconds

Two hours sped up 30 times becomes a 4-minute time-lapse clip with about 7200 frames at 30 fps.