21 Day Fix!

So I just started the 21 day fix. Unfortunately I've misplaced my tape so I can't do measurements but I did take before and after pictures so I'll be able to see plus obviously weighing myself.

My question is how the hell do I translate the workout videos I do to the exercise on here? My friend says technically the 21 day fix doesn't need you counting calories and your workout but I still like the accountability. I have a Fitbit charge with no heart rate thing on it.