Explore our growing library of science-backed calculators to personalize your wellness path.
Estimate how much you can earn donating plasma based on your weight, location, and donation frequency. Includes new donor bonuses.
Calculate your ideal cholesterol targets based on age, risk, and medical guidelines for LDL, HDL, triglycerides, and non-HDL.
Estimate potential weight and body fat gain from antidepressants based on medication type, dose, and treatment duration.
Estimate your total breast augmentation cost based on implant type, region, and surgeon experience. Compare different countries and implant options.
Estimate ideal implant volume based on your band size, goal cup size, and breast width. Includes implant profile and cost estimate by region.
Estimate your body fat percentage using the U.S. Army tape test method. Based on gender, age, height, neck, and waist measurements.
Build your Chipotle order and see real-time nutrition facts: calories, protein, carbs, fat, and fiber. Includes all protein, toppings, and sides.
Customize any Starbucks drink and instantly see calories, protein, carbs, fat, and sugar. Includes milk swaps, size changes, syrups, and toppings.
Estimate your blood alcohol content based on drinks consumed, weight, gender, and time. Understand impairment levels and time to sobriety.
Customize your high, low, and medium carb days based on your TDEE and body composition goals with our carb cycling calculator.
Accurately predict your baby's due date after IVF treatment with our specialized calculator for both fresh and frozen embryo transfers.
Estimate how much you'll have saved for retirement and your safe withdrawal rate based on current savings and contributions.
Estimate your Total Daily Energy Expenditure to determine maintenance calories and create effective weight management plans.
Calculate your ideal body weight range based on height, gender, and frame size using multiple evidence-based formulas.
Estimate how alcohol affects your sleep quality, next-day productivity, liver health, and hydration.
Estimate your risk of going bald based on family history, age, lifestyle, and health factors.
Track and assess weight loss in newborns during the first days after birth based on clinical guidelines.
Estimate your dog's whelping date based on breeding date with this veterinary-backed calculator.
Convert breast implant volume (CCs) to estimated bra cup size with this plastic surgery calculator.
Calculate how much fat and weight you might lose with liposuction, and what it may cost.
Estimate the cost of lip fillers based on volume, brand, and injector type for your procedure.
Predict a child's future adult height based on their age, current height, gender, and parental heights.
Track your child's height, weight, and BMI percentile with age-based charts.
Predict your most fertile days and ovulation window based on your menstrual cycle.
Find your ideal implant size based on your measurements and goals.
Calculate accurate Ozempic (semaglutide) dosing, check safety alerts, and track injection schedules with our comprehensive tool.
Estimate your fat loss and BMI reduction while taking semaglutide (Ozempic/Wegovy).
Determine the appropriate Botox units for different treatment areas.
Calculate optimal water intake when using creatine supplements.
Determine your ideal vitamin D supplementation based on lifestyle factors.
Convert vitamin D levels between ng/mL and nmol/L. Helpful for interpreting lab results and international guidelines.
Estimate your life expectancy based on health and lifestyle factors.
Calculate potential weight loss from intermittent fasting protocols.
Calculate your daily caloric needs and optimal macronutrient ratios.
Evidence-based guides to help you get the most from every calculator.