zumba on xbox kinect calorie count

It varies alot but I usually burn between 100-300 depending on the intensity. You might want to get a hrm watch.

I don't know if it's right, but when I do my Zumba sculpt and tone workout for approx. 40 mins., I log it under the modern dance, aerobic workout, or somewhere along those lines. It calculates it to a pretty reasonable burn. /shrug
But as everyone else is going to suggest, a heart rate monitor will give you pretty accurate results. I myself have been planning to pick one up!