Calculating Calories burned

[Baby_Cakes]

Right now I cant afford a HRM and would like an estimate of the number of calories I burn while completing various exercise DVDs - such as Davina - Power of 3 and Clair Nasirs - Boot Camp to name a few.

Does anyone know of any resources I can use to work this out?

 

[iwillsoonbeslim]

You'll get an idea of some of the burns from My Fitness Pal, but you can pick up HRMs in Lloyds and Lidl from £12.99 )