Below are the formulas used within the app to calculate calories burned.
- Female: (-20.4022 + (0.4472 X Average Heart Rate) – (0.05729 X Weight in Pounds) + (0.074 X Age)) / 4.184 X Workout Minutes
- Male: (-55.0969 + (0.6309 X Average Heart Rate) + (0.09017 X Weight in Pounds) + (0.2017 X Age)) / 4.184 X Workout Minutes
From the Journal of Sports Science. Title: Prediction of energy expenditure from heart rate monitoring during submaximal exercise. Published on March 1, 2005. https://www.ncbi.nlm.nih.gov/pubmed/15966347 Author: Keytel LR1, Goedecke JH, Noakes TD, Hiiloskorpi H, Laukkanen R, van der Merwe L, Lambert EV.
For a simplified article on calories burned based on gender read https://healthyliving.azcentral.com/calorie-expenditure-men-vs-women-7165.html