Frame Rate Converter

Source Frame Count is simply how many frames the original clip contains at its own Source Frame Rate over the given Duration -- it's a fact about the footage as captured, before any retiming happens. Target Frame Rate only comes into play for the outputs that describe converting or replaying that footage at a different rate.

It means the clip will play back faster than it was recorded -- for example, conforming 24fps footage to a 30fps timeline while keeping every frame gives a 1.25x multiplier, and a 60-second clip finishes in 48 seconds. The reverse is the classic slow-motion conform: 60fps footage played back on a 24fps timeline gives 0.4x, stretching that same 60 seconds out to 150 seconds.

No. Frame Difference is just Target Frame Count minus Source Frame Count -- the raw difference in how many frames each rate needs to cover the same Duration. Speed Multiplier answers a different question: how fast the original frame count would play if retimed to the target rate instead.

24fps is the traditional film rate, while 29.97fps (often written as 30fps) is the US broadcast video standard. Converting between them is a routine step when delivering film-originated footage for TV or streaming platforms that expect a specific frame rate.