Health Calculators
Private, accurate tools for wellness tracking - no signups, no data collection, no compromises
🔒 Your health data stays private - All calculations happen on your device, never stored or shared
BMI Calculator
Calculate your Body Mass Index with imperial/metric options and personalized health insights.
- WHO classification standards
- Healthy weight range visualization
- Age-adjusted percentiles
Calorie Calculator
Determine daily calorie needs for weight loss, maintenance, or muscle gain based on your goals.
- Mifflin-St Jeor & Harris-Benedict formulas
- Activity level customization
- Macronutrient breakdown
Body Fat Calculator
Estimate body fat percentage using multiple methods including US Navy and BMI-based calculations.
- 7-site measurement method
- Waist-to-height ratio analysis
- Fitness category benchmarks
Pregnancy Calculator
Track pregnancy milestones, due dates, and fetal development based on last menstrual period.
- Conception date estimator
- Trimester breakdown with milestone details
- Weight gain tracker
Water Intake Calculator
Determine optimal daily water consumption based on weight, activity level, and climate factors.
- Activity adjustment sliders
- Hydration reminder schedule
- Imperial/metric unit support
Ideal Weight Calculator
Find your healthy weight range using multiple formulas including Devine, Hamwi, and Peterson methods.
- Frame size adjustment
- Age-adjusted calculations
- Visual weight progress tracker
Heart Rate Calculator
Calculate target heart rate zones for different fitness goals using Karvonen and maximum heart rate methods.
- Resting HR adjustment
- Fat-burning vs. cardio zones
- Recovery time estimator
Sleep Calculator
Determine optimal sleep times based on sleep cycles and wake-up goals for better rest quality.
- 90-minute cycle alignment
- Weekend vs. weekday scheduling
- Sleep debt recovery planner
Most Used Tools
BMI Calculator
Calorie Counter
Water Intake
Sleep Planner
Your Privacy Matters
1
Enter Your Metrics
Input measurements privately - no personal identifiers required
2
Local Processing
All calculations happen in your browser - never on our servers
3
Keep or Clear Data
Results stay on your device - clear anytime via browser settings
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