Resolution doesn't matter for bitrate calculation?

[Leviathan]

I was just wondering this point because bitrate calculators never seem to take the final size of the movie into consideration. It could be 720x480 or 640x272 and the bitrate still stays the same. So, my question: As long as I have the correct length, audio bitrate, and final size of the movie I want, will the video bitrate stay the same regardless of resolution?

[khp]

Yes, but high resulution might cause quality problems at low bitrates.

In general you should try not to go under 0.2 bits per pixel.

you can calculate this as

(bitrate*1000)/(framerate*resolution) = bits per pixel.