Welcome to health, food, beauty calculators! In this section, you can find calculators for party organizers or calorie-dependent addicts, or answers to your medical questions, and also get a lot of scientifically validated information. What is my kidney function and what does it mean? How much blood do I have? How to dose medicines to children? What is the risk of developing lung cancer? These are just a few examples of what you can find out! OwlCalculator will explain these conditions and help you determine your own result!