Free study tool

Video Speed and Lecture Time Calculator

Work out how long a lecture or playlist will take at your chosen playback speed. Leave time for pauses, notes and recall.

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How to use it

Add the total video duration in hours and minutes, choose your playback speed and add any time you want for pauses or notes.

Worked example

A 90-minute lecture at 1.5× takes 60 minutes of playback. Add 10 minutes for notes and the full session takes 70 minutes.

Keep exploring

Study materials

How Long Will a Lecture Take at 1.5× or 2× Speed?

Playback speed changes how long a video runs. A study block also needs minutes for pausing, attempting examples and recalling the main ideas without the recording.

Turn lecture notes into a course

After watching, add your notes or lecture slides to Clarioxis and turn them into a course you can study chapter by chapter.

Create a course