Video frame count calculator

It takes Duration (seconds) and Frame rate (fps) and derives Total frames from them. The calculation is live as you type, so the result updates on every change.

2 values: Duration (seconds) and Frame rate (fps). Nothing else is required — no account, no file upload.

With Duration (seconds) = 60 and Frame rate (fps) = 30, the calculator returns Total frames = 1,800. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

It moves a lot. Using Duration (seconds) = 120 and Frame rate (fps) = 33 instead, Total frames goes from 1,800 to 3,960 — which is why it is worth testing a few scenarios rather than trusting a single figure.

Scaled down to Duration (seconds) = 30 and Frame rate (fps) = 27, Total frames comes out at 810. The relationship is worth checking at both ends before you rely on a single result.

Finding out how big a thing will be before you make it: how many gigabytes an hour of footage takes, how long a file needs on the connection you have, how large a photo prints before it goes soft, what bitrate fits the budget you were given.

Taking the advertised connection speed as the transfer speed. A 100 Mb/s line is megabits, the file is in megabytes, and the eight-fold difference between them is where most download estimates go wrong — before overhead and contention take their own share.

This one returns Total frames; the Video file size calculator returns File size (GB) and File size (MB). That is the whole difference — open the one whose figure you need.

Audio file size calculator is the closest one after this: Estimate an uncompressed audio file's size from its length, sample rate and bit depth.

Data usage calculator and Bitrate Calculator — they come up in the same task often enough to be worth a second tab.