How do I find out what the framerate is?

Is there some kind of framerate variable I can use extensively throughout thousands of objects? What about time.deltaTime? Would that be able to represent actual framerate?

I’m kind of trying to control a chain reaction by deleting branches based on whether the fps drops below 60.

They are mostly controlled now, but I have this feeling there is still a freak chance that I might have an atomic bomb waiting inside of my project that would bring any computer to a dead stop. It would also be cool because then even slow computers wouldn’t go out of control with the special FX.

Actually, as deltaTime is how many time has past since la frame, which is 1 / frame rate, the frame rate is 1 / deltaTime.