Health

Ideal Weight Calculator - 4 Medical Formulas + Healthy BMI Range

Calculate your ideal body weight using the Devine, Robinson, Miller, and Hamwi formulas. Cross-checked against the healthy BMI range (18.5 to 24.9). Free, no signup.

Menstrual Cycle Calculator - Period Predictor, Fertile Window, PMS Tracker

Predict your next 6 periods, fertile window, ovulation day, and PMS phase from your last period start date and average cycle length. Private, free, no signup.

Macros Calculator - Daily Protein, Carbs, and Fat for Your Goal

Calculate your daily protein, carbohydrate, and fat needs based on the Mifflin-St Jeor formula and your activity level. Pick lose / maintain / gain to get a goal-specific macro split.