I mainly built this for the UI/UX and the problem just happened to be something that interested me as someone who counts their calories. If your familiar with this area you'll know about the debates and misnomars around these components and how they should be calculated.

Typical calorie counters can't handle the combo of a desk job and a rigorous workout routine. Unit Calories calculates your TDEE from first principles, giving you an accurate daily calorie target tailored to your unique lifestyle and exercise routines.

If anyone is curious, the underlying calculation discounts active calories by 28%. I did this because of this research paper (https://www.sciencedirect.com/science/article/pii/S096098222...) I found which concluded that extra calories burned get offset by a reduction in your bmr (basal metabloic rate).