Video Minutes per Memory Card
Video fills a card quickly, and the bitrate sets how fast. Enter the card size and the bitrate your camera records at, and see the running time it gives you.
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How it works
A gigabyte is counted as eight thousand megabits. Divide the card's total megabits by the bitrate in megabits per second to get the seconds of recording.
Your camera's bitrate is in its settings or manual. Higher quality settings use more bitrate and fill the card faster.
Worked example
A 128 GB card recording at 60 megabits per second holds about 4 h 44 min 27 s of video.
Questions
What is a bitrate?
It is how much data the camera writes each second of video. Higher numbers give more detail and fill the card faster.
Why is my card shorter than this?
Cards keep some space for system files, and the camera may stop a clip early to save its files. Allow some room under the answer.
Does sound change the count?
Only a little. Audio adds a small amount of data, so the video alone sets most of the time.
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