Health & Medical
17 tools available. All free, all private.
Calculate BMI, pregnancy due dates, sleep cycles, calorie needs, and more — all health calculators run privately in your browser. No health data is stored or shared. Useful reference tools, not medical advice.
When to Use Health & Medical
- Calculating pregnancy due dates and ovulation windows
- Tracking body metrics like BMI, body fat, and ideal weight
- Planning sleep schedules with sleep cycle calculations
- Estimating daily calorie and water intake needs
- Understanding blood pressure and health indicators
Popular Health & Medical
Due Date Calculator
Calculate your baby's due date with countdown
Baby Weight Percentile
Check baby weight percentile — WHO standards
Sleep Cycle Calculator
Calculate optimal sleep and wake times
Body Fat Calculator
Calculate body fat percentage — Navy method
VO2 Max Calculator
Estimate your VO2 max and fitness level
Waist to Hip Ratio
Calculate waist-to-hip ratio and health risk
Water Intake Calculator
Calculate your daily water intake needs
Calories Burned Calculator
Calculate calories burned by activity
Blood Pressure Interpreter
Understand your blood pressure readings
Blood Type Calculator
Predict possible child blood types
Blood Alcohol Calculator
Estimate your blood alcohol content (BAC)
Sobriety Calculator
Estimate time to reach 0.00 BAC
Medication Dosage Calculator
Calculate medication dosage by weight
Vitamin D Calculator
Estimate vitamin D from sun exposure