You must have weight and height set in your user profile in order for 24GO® to calculate an estimation of calories burned. If you skipped the registration questions when you first logged into 24GO®, you can manually enter these measurements in your profile now.
To to this:
1) Open the 24GO® application.
2) Tap on the "Dashboard" icon (figure inside circle - top right of screen).
3) Tap on blue gear icon (next to your picture or larger figure inside circle).
4) Tap on "About Me".
5) Enter your "Height" and "Weight" and tap on "Save Changes".
Now if you're wearing a HRM and it's connected to 24GO®, when you do a workout you'll see calories being burned.