Health & Wellness Calculators
Interactive tools for heart health, nutrition, sleep, stress, and fitness. Backed by research. Personalized when you connect your wearable.
Heart & Wearable Health(5)
HRV Calculator
See where your heart rate variability falls for your age, sex, and fitness level. Personalized zone classification with research-backed ranges.
Use ToolResting Heart Rate Calculator
Calculate your heart age vs. chronological age and see how your RHR compares to population percentiles.
Use ToolSleep Score Calculator
Rate your sleep quality on a 0-100 scale based on timing, efficiency, fragmentation, and more.
Use ToolVO2 Max Estimator
Estimate your cardiorespiratory fitness from submaximal tests like the Cooper run, Rockport walk, or resting heart rate.
Use ToolWearable Comparison Tool
Compare Oura, WHOOP, Garmin, Polar, and more side-by-side. Get a personalized recommendation based on your priorities.
Available soonNutrition & Diet(9)
TDEE & Macro Calculator
Calculate your total daily energy expenditure and optimal protein, carb, and fat split using three proven formulas.
Use ToolBody Composition Calculator
Estimate body fat percentage using the Navy method, BMI-based estimation, and waist circumference — all at once.
Use ToolHydration Calculator
Get a personalized daily water intake target based on your weight, activity, climate, altitude, and caffeine consumption.
Use ToolIdeal Body Weight Calculator
See your healthy weight range using five medical formulas (Devine, Robinson, Miller, Hamwi, BMI-based).
Use ToolIntermittent Fasting Calculator
Plan your fasting and eating windows with biological milestone markers for ketosis and autophagy.
Use ToolCaffeine Half-Life Calculator
Track caffeine levels in your bloodstream over 24 hours and find the optimal cutoff time for quality sleep.
Use ToolPregnancy Nutrition Calculator
Trimester-specific caloric needs, key nutrient targets, and weight gain tracking against medical guidelines.
Use ToolCalorie & Nutrition Lookup
Look up calories, macros, and micronutrients for 500+ common foods. Compare up to 3 foods side-by-side.
Use ToolAyurvedic Dosha Quiz
Discover your Ayurvedic body constitution (Vata, Pitta, Kapha) with personalized diet and lifestyle recommendations.
Available soonMind & Stress(4)
Breathing Exercise Timer
Guided breathing with beautiful animations. Box breathing, 4-7-8, Wim Hof, coherence breathing, and custom patterns.
Use ToolStress Level Assessment
Measure your perceived stress with a validated questionnaire and get a personalized de-stress protocol.
Use ToolMeditation Duration Guide
Get a personalized meditation recommendation based on your experience, goals, and available time.
Use ToolExam Stress Toolkit
Optimize your study schedule with stress-adjusted break timing and built-in relaxation exercises.
Use ToolWomen's Health(1)
Yoga & Movement(2)
Yoga Pose Finder
Build a personalized yoga sequence based on your goals, time, level, and target body areas.
Available soonRecovery Time Calculator
Estimate muscle recovery time based on workout type, intensity, age, sleep quality, and nutrition.
Available soonCorporate Wellness(1)
Wellness ROI Calculator
Estimate annual savings from a corporate wellness program — absenteeism, healthcare costs, productivity, and turnover.
Available soon