Health & Fitness Calculators
Empower your health journey with our comprehensive suite of calculators designed for accuracy and ease of use.
From BMI calculations to calorie tracking, our free health tools help you monitor your wellness, plan nutrition, and achieve your fitness goals with precision.
BMI Calculator
Calculate your BMI instantly and discover your healthy weight range in seconds with BMI Calculator.
FFMI Calculator
Calculate your FFMI, normalized FFMI, fat-free mass, and body composition in seconds to better understand your muscularity relative to your height.
AFT Calculator
Calculate your Army Fitness Test score across all five AFT events and instantly see your total points, event-by-event scores, and pass or fail status.
BMR Calculator
Find out how many calories your body burns at rest and estimate your daily calorie needs based on your age, gender, height, weight, and activity level.
TDEE Calculator
Find out how many calories you burn each day and get personalized calorie targets for weight loss, maintenance, or weight gain in seconds.
Calorie Calculator
Use our free Calorie Calculator to discover how many calories you need each day for weight loss, maintenance, or healthy weight gain based on your body and activity level.
Macro Calculator
Calculate your ideal daily calories, protein, carbohydrates, and fats instantly with our free Macro Calculator to support weight loss, muscle gain, or healthy weight maintenance.
Walking Calorie Calculator
Estimate calories burned walking based on your weight, pace, distance, and time with our free Walking Calorie Calculator.
Protein Calculator
Find your ideal daily protein intake in seconds with personalized recommendations based on your weight, activity level, and fitness goals.
Healthy Weight Calculator
Calculate your ideal weight range based on height, age, and body frame.
Pregnancy Calculator
Estimate your due date, track your pregnancy week by week, monitor baby growth, and stay on top of every important milestone with our free, medically informed Pregnancy Calculator.
Due Date Calculator
Calculate your baby's due date in seconds using LMP, conception, IVF, ultrasound, or your existing EDD, complete with pregnancy weeks, trimester, and milestone tracking.
Conception Calculator
Estimate your conception date, fertile window, pregnancy age, and due date instantly using trusted pregnancy dating methods.
Pregnancy Conception Calculator
Estimate ovulation date, fertile window, likely conception window, and due date based on your last period and cycle length.
Ovulation Calculator
Enter your last period date and average cycle length to instantly estimate your ovulation date, fertile window, most likely conception days, next period, and upcoming cycle dates.
One Rep Max Calculator
Discover your estimated 1RM and ideal training loads in seconds.
Pace Calculator
Calculate your running pace, finish time, distance, speed, race estimates, and mile or kilo meter splits instantly.
OverWeight Calculator
Enter your height and weight to instantly check your BMI, weight category, and healthy weight range for free.
Period Calculator
Find your next period date, estimated ovulation, and fertile window in seconds with our free Period Calculator.
Weight Watchers Points Calculator
Calculate your WW points instantly with our free calculator for SmartPoints-style, PointsPlus, Original Points, and daily target estimates.
Body Surface Area (BSA) Calculator
Calculate your body surface area (BSA) instantly using height and weight, and compare results across 8 established BSA formulas.
Body Type Calculator
Find your natural body shape using our body type calculator and understand your true body proportions.
Anorexic BMI Calculator
Assess underweight risks and BMI indicators related to eating disorders.
Army Body Fat Calculator
Calculate your Army body fat in seconds and easily check how your measurements compare with Army body composition standards.
BAC Calculator
Estimate your BAC in seconds based on your weight, drinks, ABV, and time since your first drink free, fast, and easy to use.
Carbohydrate Calculator
Find out how many carbs per day you need based on your age, weight, height, activity level, and goals with our free carb calculator.
Fat Intake Calculator
Find out how much fat you should eat per day based on your body, activity level, and weight goal. Get your personalized daily fat range instantly.
GFR Calculator
Enter your details to instantly estimate your eGFR, check your GFR category, and better understand your kidney function.
Lean Body Mass Calculator
Calculate your lean body mass, fat mass, lean percentage, and estimated body fat instantly with our free LBM calculator.
Calories Burned Calculator
Find out how many calories you burned based on your activity, body weight, duration, speed, or distance with a quick and easy calorie burn estimate.
Ideal Weight Calculator
Wondering, “How much should I weigh?” Enter your details to instantly estimate your ideal body weight, compare trusted formulas, and see your healthy weight range.
Target Heart Rate Calculator
Find your ideal workout heart rate in seconds, calculate your max heart rate and personalized training zones for smarter, more focused workouts.
Pregnancy Weight Gain Calculator
See your recommended pregnancy weight range by week, pre-pregnancy BMI, and pregnancy type in seconds.
Water Intake Calculator
Find your personalized daily water intake based on your age, weight, activity level, exercise, and climate in just seconds.
Intermittent Fasting Calculator
Plan your fasting schedule in seconds and get personalized fasting hours, eating window, daily calorie target, BMR, TDEE, and protein needs based on your body and goals.
Body Recomposition Calculator
Calculate your personalized daily calories, protein needs, and body recomp targets to help you lose fat while building or maintaining lean muscle.
VO₂ Max Calculator
Calculate VO₂ max in seconds using walking, running, heart rate, step test, or rowing data and see your estimated aerobic fitness level instantly.
Creatine Calculator
Get a personalized creatine dose, loading plan, maintenance intake, and daily water target based on your weight, diet, and fitness goal.
Treadmill Calorie Calculator
Instantly estimate calories burned during treadmill workouts with our free Treadmill Calorie Calculator based on your weight, speed, duration, and incline.