After a conversation I had this morning, I decided to 'give' you all some tools for determining the calories burned in your activities. One is this calculator from Glamour.com, which I fully admit is not an exercise expert. But I like this calculator. Here is one from Self Magazine. Here is another on from my.calorie.counter.com...I don't find this one as easy to use, but its helpful to note that the results are similar. There are a million calorie calculators out there and the results vary ... which I think is natural since everyones efforts vary - Think of it this way - the harder you work, the bigger the payoff.
Now, when looking at the calories burned, I want you all to keep in mind that muscle building exercises such as weight lifting (and to an extent yoga) may have a lower 'burn'; however, muscle building stokes your metabolism, leading to more of a 'burn' over the course of a day.
Here are some examples for a 150 pound person:
"Yoga" (90 minutes) which I assume to mean Hatha or Gentle Yoga: About 268 calories
Weight Lifting (45 minutes) Vigorous Effort: About 321 calories
Stationary Bike (60 minutes) Moderate Effort: About 500 calories
Swimming (60 minutes) Moderate Effort: About 500 calories
Rowing (60 minutes) Moderate Effort: About 500 calories
Running (60 minutes) at 10 minute miles: About 714 calories
Jumping Rope (60 minutes...god help you) Moderate Effort: About 714 calories
Power Yoga (90 minutes): About 718 calories
Swimming (60 minutes) Vigorous Effort: About 785 calories