Radical Fitness Programmes

_Tuyana_

My gym offers Radical Fitness group exercises, I wonder if anyone knows how I could find how many calories I burn during classes (e.g. Power cardio). I know that it depends on how much weight you carry and the heart rate you get to and the length of the workout. I found a website recently which worked out how many calories I burnt based on my weight and how many minutes I spent on a Zumba workout. It would be really helpful if there was something like that out there for other workouts.