Health & Fitness Calculators
Track personal wellness benchmarks using standard World Health Organization (WHO) and clinical formulas. Your physical metrics are computed locally in your browser and are never stored or tracked by our servers.
Available Health & Fitness Tools (12)
BMI Calculator
Calculate your body mass index (BMI) from height and weight, then see the standard weight-status category for adults.
Calorie Calculator (TDEE)
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) to find calorie targets for maintenance, fat loss, or weight gain.
Body Fat Percentage Calculator
Estimate body fat percentage and lean body mass using the U.S. Navy circumference method with neck, waist, and hip measurements.
Pregnancy Due Date Calculator
Calculate your estimated baby due date, current gestational age, and developmental trimesters based on your last menstrual period or conception date.
Ovulation Calculator
Estimate your ovulation day and peak fertile window based on average menstrual cycle length and the date of your last period.
Water Intake Calculator
Calculate recommended daily water intake in ounces and liters based on body weight, daily physical activity, and environmental climate.
Ideal Weight Calculator
Estimate healthy target body weight ranges for your height using clinical formulas including Devine, Robinson, Miller, and Hamwi equations.
Macronutrient Calculator
Calculate daily macronutrient targets for protein, carbohydrates, and dietary fats tailored to your total calorie goal, body weight, and fitness objectives.
Running Pace Calculator
Calculate running pace, total race time, or distance splits for 5K, 10K, half marathon, and full marathon training runs.
Sleep Cycle Calculator
Calculate optimal bedtimes and wake-up times based on natural 90-minute sleep cycles to wake up feeling refreshed between sleep stages.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to discover the baseline calories your body burns at rest each day to sustain life.
Macronutrient Splitter Calculator
Split daily calorie targets into customized protein, carbohydrate, and fat gram ratios using presets for Keto, Balanced, Zone, and High-Protein diets.