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Playback Speed Calculator — Video Time at Any Speed

Find out how long a video takes at any playback speed. Enter the original length and speed to get the new watch time and time saved, or work backwards from a target finish time to the speed you need.

Playback Speed Calculator

Find out how long a video takes at any playback speed — or what speed you need to finish by a target time.

Original length — hours

Minutes

Seconds

Playback speed (x)

New watch time

0:40:00

Time saved

0:20:00

Reverse: what speed finishes it in your target time?

Target time — hours

Minutes

Seconds

Speed needed

2.00x

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✨ Key Capabilities

New watch time at any speed from 0.25x to 3x
Time saved versus watching at normal speed
Reverse mode: speed needed to finish by a target time
Hours, minutes and seconds input for any video length

📖 How to Use the Playback Speed Calculator — Video Time at Any Speed

Enter the video's original length in hours, minutes and seconds.
Enter the playback speed (for example 1.5 or 2) and read the new watch time and time saved.
Reverse mode: enter the time you want to finish in, and the calculator shows the speed you need.

❓ Frequently Asked Questions

How long will a 1-hour video take at 2x speed?

30 minutes. New time = original time divided by speed, so 60 minutes / 2 = 30 minutes, saving 30 minutes.

What speed do I need to finish a 2-hour video in 1 hour?

2x speed. Required speed = original time / target time, so 120 minutes / 60 minutes = 2x.

Does changing playback speed change the video itself?

No. It only changes how fast it plays and how long it takes to finish. The content stays the same; some players also raise the audio pitch at higher speeds.