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Photography & video

Slow-Motion Factor Calculator

Find playback slowdown from recording and playback frame rates.

Units clearly labeledCheck practical equipment limits

Camera and output settings

Runs on your device

SHOOTING ESTIMATE

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter capture frame rate, playback frame rate.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Duration multiplier = capture fps/playback fps.

A WORKED EXAMPLE

Using capture frame rate = 120 fps, playback frame rate = 30 fps, the result is 4 ×. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

Assumes all captured frames are retained without interpolation. An ideal geometric or exposure estimate. Lens behavior, stabilization, sensor crop and scene conditions may change practical results.

Common questions

Which inputs does this calculation need?

Find playback slowdown from recording and playback frame rates. Enter capture frame rate in fps, playback frame rate in fps. The filled example is editable and is not a saved personal record.

How should I interpret the result?

Assumes all captured frames are retained without interpolation. An ideal geometric or exposure estimate. Lens behavior, stabilization, sensor crop and scene conditions may change practical results.

Methodology maintained by ClarityKit. How these tools are built and checked.