Health & Fitness Calculators
Free online calculators for health & fitness related computations.
2020 Vision Calculator
Calculate your risk of vision impairment based on lifestyle factors including physical activity, diet, and smoking habits.
6 Minute Walk Test Calculator
Calculate and assess your 6-minute walk test (6MWT) results. This test measures functional capacity and is used to evaluate cardiopulmonary conditions.
A Body Shape Index (ABSI) Calculator
Calculate your A Body Shape Index (ABSI) to estimate mortality risk based on body shape. More accurate than BMI for assessing health risks related to body composition.
Aa Gradient Calculator
Calculate the alveolar-arterial oxygen gradient (A-a gradient) to assess oxygenation status and differentiate causes of hypoxemia.
Acid Base Calculator
Calculate and interpret arterial blood gas values and anion gap. Essential tool for assessing acid-base balance and diagnosing metabolic or respiratory disorders.
Albumin Globulin Ratio Calculator
Calculate the ratio between albumin and globulin proteins in blood to assess liver function, nutritional status, and various medical conditions.
Alcohol Units Calculator
Calculate alcohol units in your drinks to monitor and manage your alcohol consumption safely
Anion Gap Calculator
Calculate the anion gap from blood electrolyte levels to help diagnose acid-base disorders and assess metabolic acidosis.
Army Body Fat Calculator
Calculate your body fat percentage according to U.S. Army standards (ALARACT 046/2023). This calculator uses the official Army circumference method to determine if you meet body fat requirements.
Biorhythm Calculator
Calculate your physical, emotional, and intellectual biorhythm cycles based on your birth date. Understand your natural cycles and plan activities accordingly.
Blood Pressure Calculator
Calculate and interpret your blood pressure readings. Understand your systolic and diastolic blood pressure values and what they mean for your health.
Blood Sugar Calculator
Convert between different blood sugar measurement units and understand your blood glucose levels
BMI Calculator
Calculate your Body Mass Index (BMI) and understand what it means for your health with our easy-to-use BMI Calculator.
Body Fat Calculator
Calculate your body fat percentage using scientifically proven methods. Get accurate estimates based on your measurements and learn about healthy body fat ranges.
BSA Calculator
Calculate Body Surface Area using various formulas including Mosteller, DuBois, and Haycock methods. Essential for medical dosing and health assessments.
Caffeine Calculator
Calculate your daily caffeine intake and understand safe consumption limits. Track caffeine from coffee, tea, energy drinks, and other sources.
Calorie Calculator
Calculate your daily calorie needs based on your age, gender, height, weight, and activity level. Includes multiple BMR formulas and weight management goals.
Calorie Deficit Calculator
Calculate your optimal calorie deficit for healthy and sustainable weight loss
Drug Half Life Calculator
Calculate drug half-life and estimate drug concentration over time for medical and research purposes
Healthy Weight Calculator
Calculate your healthy weight range based on height, gender, and body frame size using the Hamwi formula. Get personalized weight recommendations for optimal health.
Macro Nutrient Calculator
Calculate your daily macronutrient needs with our free online calculator. Get personalized protein, carbohydrate, and fat recommendations based on your goals.
Noise Exposure Calculator
Calculate safe exposure times for different noise levels and determine your daily noise dose based on OSHA and NIOSH guidelines
One Rep Max Calculator
Calculate your one-repetition maximum (1RM) for any exercise using weight and reps performed. Get accurate strength estimates using multiple formulas.
Pregnancy Due Date Calculator
Calculate your estimated due date (EDD) based on last menstrual period or conception date
Protein Calculator
Calculate your daily protein needs based on weight, activity level, and fitness goals
Running Heart Rate Zone Calculator
Calculate your target heart rate zones for different types of training based on your age, resting heart rate, and maximum heart rate.
Sleep Calculator
Calculate optimal bedtime or wake-up time based on sleep cycles to help you wake up refreshed and energized.
Waist-to-Height Ratio Calculator
Calculate your waist-to-height ratio (WHtR) to assess health risks and body fat distribution. This simple measurement can be a better predictor of health risks than BMI.