Health & Fitness
Informational wellness, pace, and biometric calculators. Every tool runs 100% locally in your browser so your data never leaves your device.
Health & Fitness
BMI Calculator
Calculate Body Mass Index (BMI), healthy weight ranges, and WHO weight categories.
BMR & Calorie Calculator
Calculate Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) calories.
Water Intake Calculator
Estimate recommended daily water intake based on body weight, daily activity, and climate.
Pace Calculator
Calculate running pace, speed, finish time, and split intervals for 5K, 10K, half, and full marathons.
Pregnancy Due Date Calculator
Estimate your baby due date, gestational age, and trimester milestones based on last period.
Menstruation Tracker
Track menstrual cycles, predicted periods, and fertile ovulation windows stored 100% privately on your device.
Sleep Calculator
Calculate optimal bedtimes and wake-up times aligned with natural 90-minute REM sleep cycles.
