Circular needle questions

I am teaching myself how to knit on double pointed and circular needles, but I have 2 questions, first, am i supposed to find gauge for a pattern that is on circular needles in flat or circular, and how can i do that if the ends of my cast ons don’t reach both needles? I am hope this isn’t to confusing, but i’m at a loss!!! thanks thanks thanks

Welcome Jeanelaina!

I was wondering the same thing not long ago; it seems like there should be a trick to knitting a gauge swatch for circular knitting. There is! Here’s the thread where we talked about it. It’s brilliant!