Health & Fitness Tools

Health and fitness estimators for nutrition, metabolism, and body metrics.

Pregnancy Calculator

Calculate pregnancy due date, gestational age, conception date, and key trimester milestones from LMP or expected due date.

Estimate BMI from your height and weight and get an at-a-glance health category.

Estimate daily calories from macro grams using 4/4/9 nutrition rules.

Estimate body fat percentage using the US Navy tape-measure approach.

Estimate your BMR using the Mifflin–St Jeor equation and get an at-rest calorie baseline.

Compute estimated daily calorie burn using BMR and an activity factor.

Calculate drops per minute from ml, minutes, and drop factor.

Convert a weight-based dose and concentration into ml to administer (verify with protocol).

Estimate CrCl from serum creatinine, age, weight, and sex.

Estimate daily water target from body weight using a configurable ml/kg guideline.

Split daily calories into protein, carb, and fat grams using 4/4/9 kcal per gram.

Estimate resting metabolism (BMR) and total daily energy (TDEE) from weight, height, age, sex, and activity factor.