I posted here because there's no one place it goes (and I won't spam ) ...

I find this calculator really useful and calculates based on your weight.
Fitness Calculators: Calculators: Self.com

That is awesome! I am told that we burn between 750-1,000 calories per one hour at Zumba class. I sweat so much so I'm sure I burn 1,000! Seriously though this calculator is great. I wonder how accurate it is.

I finally broke down and bought a heart rate monitor and chest strap combo because I was always paranoid that those calculators weren't accurate. It always seemed like they spit out numbers that were way too high. Once I got the strap and monitor, though, those numbers were only a little less than what the calculators said, so I think they're actually pretty spot-on.

My phone won't let me open the link I have a HRM though and burn around 500 a day through the exercise bike and walking.