Health Assessment
Tools
Calculate your health metrics with precision. From body composition to biological age, get the insights you need to optimize your performance.
BMI Calculator
Classic health metric to assess if your weight is in a healthy range for your height.
- Weight assessment
- Health categories
- Easy to use
Waist to Height Ratio
Simple yet powerful health screening tool that may predict health risks better than BMI.
- Heart health
- Diabetes risk
- Simple measurement
Ideal Weight Calculator
Estimate your ideal body weight using four established medical formulas based on height and gender.
- 4 medical formulas
- BMI weight range
- Height-based
Heart Rate Zone Calculator
Calculate your 5 heart rate training zones for fat burning, cardio fitness, and peak performance.
- 5 training zones
- Karvonen method
- Fat burn & cardio
Sleep Cycle Calculator
Find the best times to sleep and wake up based on 90-minute sleep cycles to feel refreshed.
- Sleep cycles
- Bedtime planner
- Wake time optimizer
Water Intake Calculator
Calculate how much water you should drink daily based on your weight, activity level, and climate.
- Weight-based
- Activity adjusted
- Climate adjusted
Max Heart Rate Calculator
Estimate your maximum heart rate using four validated scientific formulas with training zone preview.
- 4 formulas
- Zone preview
- Gender-specific
TDEE Calculator
Find out how many calories you burn per day based on your activity level using the Mifflin-St Jeor equation.
- Daily calories
- Activity-based
- Goal targets
BMR Calculator
Calculate your resting calorie burn using Mifflin-St Jeor and Harris-Benedict equations.
- Two formulas
- Resting calories
- TDEE estimate
Macro Calculator
Calculate daily macronutrient targets with multiple preset splits for your fitness goals.
- 5 macro splits
- Goal-based
- Gram targets
Protein Calculator
Find your optimal daily protein intake with per-meal targets and food equivalents.
- Activity-based
- Meal planning
- Food equivalents
FFMI Calculator
Evaluate muscle mass relative to height. Perfect for athletes and fitness enthusiasts.
- Muscle assessment
- Body composition
- Athletic performance
Body Composition Calculator
Calculate body fat percentage using Navy, Jackson-Pollock, or BMI methods.
- Body fat percentage
- Multiple methods
- Lean mass calculation
One Rep Max Calculator
Estimate your one-rep max using 5 validated formulas with training load percentages.
- 5 formulas
- Training loads
- Strength programming
Running Pace Calculator
Calculate running pace, finish time, and race splits for 5K, 10K, half marathon, and marathon.
- Pace & speed
- Race splits
- Distance presets
Calorie Deficit Calculator
Calculate your daily calorie target for weight loss with estimated timeline to reach your goal weight.
- Goal timeline
- Safety warnings
- TDEE-based
Body Fat Calculator
Calculate your body fat percentage using the U.S. Navy tape measure method with fitness category.
- Body fat %
- Lean mass
- Fitness category
Lean Body Mass Calculator
Calculate your lean body mass (muscle, bone, organs) from your weight and body fat percentage.
- Lean mass
- Fat mass
- Composition breakdown
VO2 Max Estimator
Estimate your VO2 max with the Cooper 12-minute run or 1.5-mile test. See your fitness classification.
- Cooper test
- 1.5-mile test
- Fitness classification
Phenotypic Age Calculator
Discover your biological age using advanced epigenetic biomarkers and blood test results.
- Blood biomarkers
- Epigenetic analysis
- Aging assessment
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