Health Tools

Check your Body Mass Index (BMI) to see if you are in the healthy weight range based on your height and weight.

Find out how many calories your body burns at rest. Your BMR (Basal Metabolic Rate) is the foundation of any weight loss or muscle gain plan.

Calculate your TDEE to know exactly how many calories you burn in a day. The ultimate tool for planning weight loss, maintenance, or dietary bulking.

Estimate your body fat percentage, lean body mass, and fat mass using the clinically proven U.S. Navy measurement method.

Calculate your ideal body weight using four clinical medical formulas (Robinson, Miller, Devine, and Hamwi) to find your perfect target weight.

Calculate exactly how many calories you need to eat to lose weight. Get a customized, safe, and realistic timeline for reaching your target weight.

Find out exactly how much protein you need to eat every day based on your body weight and specific fitness goals (Muscle Gain, Fat Loss, or Maintenance).

Calculate your exact daily macros (Protein, Carbs, Fats) based on your specific goal and preferred diet type.

Calculate exactly how much water you need to drink daily based on your body weight, activity levels, and surrounding climate.

Calculate your exact maintenance calories—the specific amount of food you need to eat daily to keep your body weight exactly the same.

Calculate your estimated pregnancy due date (EDD), current trimester, and fetal baby timeline based on Naegele's Rule.

Calculate your most fertile days and predict your exact ovulation date to maximize your chances of getting pregnant.

Estimate your Blood Alcohol Content based on your weight, biological sex, drinks consumed, and time passed using the Widmark formula.

Check if you meet the baseline medical and physical requirements to donate whole blood based on standard Red Cross guidelines.

Calculate your Body Surface Area (BSA) for determining accurate medical and pharmacological dosages using standard clinical formulas.

Calculate approximate weight-based pediatric medication dosages based on standard mg/kg rules. Always verify with a physician.

Estimate the total volume of blood in your body in Liters, Pints, and Gallons based on your height, weight, and sex using Nadler's Equation.

Track your menstrual cycle and predict the start and end dates of your next two periods.

Track exactly how many days, weeks, and months are left until your estimated baby due date.

Work backwards from your due date or ultrasound measurements to estimate when conception originally occurred.

Calculate your maximum heart rate and ideal cardiovascular training zones using the Tanaka and Karvonen formulas.

Determine your average running pace, total time, or required speed for any distance from a 5K to an ultramarathon.

Estimate how many calories you burned on your bike ride based on your body weight, ride duration, and effort intensity (METs).

Calculate real-world calories burned walking based on net distance covered and your body weight.

Calculate your Lean Body Mass (LBM) to find out exactly how much of your weight is fat-free, critical for accurate protein dosing and fitness analytics.

Calculate your theoretical 1-Repetition Maximum (1RM) for any lift based on your performance with lighter weights for higher reps.

Calculate the exact amount of creatine monohydrate you should take daily based on your body weight and current phase (loading vs maintenance).

Estimate your VO2 Max—the ultimate metric for cardiovascular fitness—using the standardized 12-minute run test protocol.

Determine the exact steady pace you need to maintain per kilometer or mile to run a marathon in your target goal time.

Convert your daily step count from your pedometer or phone into actual physical distance (kilometers/miles) based on your height.

Calculate your WHR to assess your body fat distribution curve and understand your risk for cardiovascular disease and type 2 diabetes.

Find the exact time you should go to sleep in order to wake up at the end of a 90-minute REM cycle, eliminating morning grogginess.

Calculate your accumulated "sleep debt" based on how many hours you actually slept versus your biological baseline requirement.

Find out exactly how long to set your alarm for a daytime nap to boost alertness without waking up feeling worse.

Calculate your medically recommended total weight gain throughout pregnancy based on your starting pre-pregnancy BMI (IOM Guidelines).

Pinpoint the 6 days of the month when you are actually capable of getting pregnant based on your menstrual cycle length.

Calculate your WHtR, an emerging metric that many cardiologists believe is far superior to BMI for predicting early heart disease.

Determine your geometric body shape (Hourglass, Pear, Apple, Rectangle) based on your bust, waist, and hip circumference measurements.

Calculate your average Resting Heart Rate over multiple days to determine your baseline cardiovascular fitness and heart efficiency.

Calculate your BMI Prime score—a modification of the standard BMI formula that tells you exactly how close you are to your upper weight limit.

Estimate your body fat percentage using a tape measure and the rigorous circumference formulas developed by the US Department of Defense.

Take your known BMR and dial in the exact Harris-Benedict activity multiplier to calculate your Total Daily Energy Expenditure (TDEE).

Calculate your Body Adiposity Index, an emerging metric designed as an alternative to BMI that uses hip circumference instead of body weight.

Find the precise upper and lower limits of the medically recognized "healthy weight" brackets for your specific height.

Determine exactly how much fluid you lost via sweat during a workout, and exactly how much you need to drink to fully rehydrate.

Calculate your FFMI, a highly accurate metric used by bodybuilders to gauge maximum muscular potential independent of fat weight.

Calculate the precise daily caloric surplus and macronutrient breakdown required to build lean muscle mass while minimizing fat gain.

Design the perfect caloric deficit protocol to strip off body fat without sacrificing hard-earned muscle mass during your cut.

Calculate your personalized cardiovascular training zones (Zone 1 through 5) utilizing the advanced Karvonen Method for precision endurance training.

Calculate exactly how fast you need to walk to cover a specific distance in a specific amount of time.

Input your total race distance and goal finish time to calculate exactly what your stopwatch should read at any mid-race distance marker.

Calculate your exact daily dietary fiber requirement based on your gender, age, and total caloric intake to optimize gut health and longevity.

Calculate your precise daily fluid requirement by factoring in not just baseline bodyweight, but real-time exercise duration and sweat loss parameters.

Input your systolic and diastolic reading to see exactly which American Heart Association category you fall into.

Convert any alcoholic beverage (beer, wine, spirits) into standardized medical alcohol units to track your weekly intake.

Calculate exactly how many days, months, and years you have been continuously sober since your quit date.

Calculate the devastating financial impact of smoking over time based on your daily habit and local cigarette prices.

Calculate your Total Cholesterol to HDL ratio, a critical metric for predicting plaque buildup and heart attack risk.

Instantly convert blood glucose readings between the US standard (mg/dL) and the International standard (mmol/L).

Find out exactly how many calories your body burns every day based on your age, weight, height, and activity level.