Playback Speed Calculator
See how long a video or podcast takes at 1.25×, 1.5×, 2×… and how much time you save.
Watching lectures, podcasts, or videos at 1.5x or 2x speed saves real time — this shows exactly how much, translating a normal-speed duration into its sped-up equivalent across common speed options.
Where the time savings really adds up
The time saved scales with content length — a 10-hour course watched at 2x speed saves a full 5 hours, while a 10-minute video only saves 5 minutes. For long-form content like courses and audiobooks, even a modest speed increase compounds into meaningful time saved.
Frequently asked questions
Does watching at 2x speed hurt comprehension?
It varies by person and content type — many people adapt to faster speeds with practice, though dense or unfamiliar material may benefit from a more moderate speed increase to preserve comprehension.
Why isn't 2x speed always exactly double the time savings?
Mathematically it is exactly double for the content duration itself — but factor in that you may re-watch or pause sections more at higher speeds, which can offset some of the theoretical time savings in practice.