Health & Fitness
Trackers and calculators — informational only, not medical advice.
Calorie Needs Calculator
BMR, daily calories (TDEE), a full weight-goal table and a macro breakdown
Water Intake Calculator
A simple daily hydration estimate from body weight, exercise and climate
Ideal Weight Calculator
Reference range from height, using four established formulas
Heart Rate Zone Calculator
Training zones from max heart rate, with an optional Karvonen (heart rate reserve) mode
Pregnancy Due Date Calculator
Estimated due date, conception date and trimester milestones from last menstrual period
Medicine Reminder Tracker
Track your own dose schedule — no medicine suggestions
First Aid Quick Guide
WHO/Red Cross-style basic steps for common emergencies
Vaccination Schedule (EPI) Reference
Bangladesh-style EPI schedule for quick reference
Blood Pressure Log
Track readings over time with a general category label
Blood Sugar Log
Track glucose readings with fasting or post-meal context
Menstrual Cycle Tracker
Predict ovulation, the fertile window and the next 3 periods
Sleep Cycle Calculator
Bedtimes or wake times aligned to 90-minute sleep cycles
Nutrition Lookup
Calories and macros for everyday foods (API Ninjas)
209 tools across 33 categories · 20 call a live API — everything else runs entirely in your browser.