Health calculators that explain the formula behind every number: body mass index with both the WHO and the Asian cut-offs, daily calories, ideal body weight by four classic formulas, heart rate training zones and a pregnancy due date. Each names the study or guideline it uses and says what the number can and cannot tell you. They are general information to discuss with a doctor, not medical advice, and nothing you enter leaves your device.

Body, fitness and pregnancy

BMI with both the WHO and the Asian cut-offs, daily calories, ideal weight, heart rate training zones and a pregnancy due date, each with its formula explained. General information, not medical advice.