WebMD offers a neat interactive tool, which will help you find out how many calories you burned during various activities. Even though most tools like this offer an average guesstimate, not able to take in consideration your exact muscle/body fat ratio......it's pretty close and provides a reasonable guideline.

Use it not only to see how many calories you just burned, but also use it to see how much more you can burn if you take things up a notch. Inspiration is everywhere!