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Calculate time saved and new duration at any playback speed — works for audiobooks, podcasts, lectures and video.
Calculate time saved and new duration at any playback speed — works for audiobooks, podcasts, lectures and video.
Enter values above and click Calculate — results will appear here with the formula explained.
Playback speed is a simple division. At 2×, a 60-minute lecture takes 30 minutes, saving 50%. At 1.5×, saving is 33.3%.
Works for any timed media: audiobooks, podcasts, YouTube, lectures. The math is identical.
To use the Playback Speed Calculator, enter original duration, speed above for an instant result with full breakdown and formula (New = original / speed; Saved = original - new; Saved % = (1 - 1/speed)×100). Adjust values live to compare scenarios, then check the worked example and FAQs below for practical tips and costly mistakes to avoid.
Calculate time saved and new duration at any playback speed — works for audiobooks, podcasts, lectures and video. Formula: New = original / speed. Example: 2 hours 30 minutes at 1.5× = 1 hour 40 minutes, saving 50 minutes (33%).
Playback speed is a simple division. At 2×, a 60-minute lecture takes 30 minutes, saving 50%. At 1.5×, saving is 33.3%.
Works for any timed media: audiobooks, podcasts, YouTube, lectures. The math is identical.
To use the Playback Speed Calculator, enter original duration, speed above for an instant result with full breakdown and formula (New = original / speed; Saved = original - new; Saved % = (1 - 1/speed)×100). Adjust values live to compare scenarios, then check the worked example and FAQs below for practical tips and costly mistakes to avoid.
2 hours 30 minutes at 1.5× = 1 hour 40 minutes, saving 50 minutes (33%). At 2× = 1 hour 15 minutes, saving 1 hour 15 minutes (50%).
Formulas are standard public references (see our methodology). External standards are cited in the text where they apply.
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