BMI Calculator

Calculate your Body Mass Index using height and weight.

BMI = weight (kg) / (height in meters)^2

Daily Water Intake

Estimate how much water you should drink every day.

Base water (ml) = weight (kg) * 35, then add activity bonus.

BMR Calculator

Find your Basal Metabolic Rate using age, weight, height, and sex.

Mifflin-St Jeor formula for men and women.

Calorie Needs (TDEE)

Estimate daily maintenance calories based on BMR and activity.

TDEE = BMR * activity multiplier.

Pregnancy Due Date

Estimate expected due date from your last menstrual period.

Due date ~= LMP + 280 days.

Period Cycle Tracker

Predict next period and fertile window using cycle length.

Next period = last period + cycle length.