Health & Fitness Calculators
Track your wellness journey with calculators for BMI, calories, macros, and fitness goals. Science-backed formulas for better health decisions.
All Health & Fitness Calculators
Showing 24 of 49 calculators
BAC Calculator
Calculate your estimated blood alcohol content (BAC) based on weight, gender, number of drinks, a...
BMI Calculator
Calculate your Body Mass Index (BMI), check where you fall on the BMI chart, find your ideal weig...
BMR Calculator - Basal Metabolic Rate & Daily Calorie Needs
Calculate your Basal Metabolic Rate (BMR) - the number of calories your body burns at rest. Use m...
Blood Pressure Calculator
Use our free blood pressure calculator to interpret your BP reading. Get the AHA 2017 category (N...
Blood Sugar Calculator
Use our free blood sugar calculator to convert glucose readings between mg/dL and mmol/L, estimat...
Body Fat Calculator
Calculate your body fat percentage using the accurate Navy method with waist and neck measurement...
Body Recomposition Calculator
Calculate your ideal calorie cycling plan for body recomposition. Get separate training day and r...
Body Surface Area (BSA) Calculator
Calculate Body Surface Area (BSA) in m² from height and weight using all five clinical formulas ...
Caffeine Calculator
Track your daily caffeine intake from coffee, tea, and energy drinks. Calculate caffeine half-lif...
Calorie Calculator
Calculate how many calories you should eat per day for weight loss, muscle gain, or maintenance. ...
Calories Burned Calculator
Use our free calories burned calculator to estimate calories burned during 25+ exercises and acti...
Carbohydrate Calculator
Use our free carbohydrate calculator to determine your optimal daily carb intake based on body we...
Cardiac Output Calculator
Use our free cardiac output calculator to compute heart output in L/min from heart rate and strok...
Cardiovascular Risk Calculator
Use our free cardiovascular risk calculator to estimate your 10-year risk of heart attack or stro...
Cat Age Calculator
Convert your cat's age into human years using the AAHA (American Animal Hospital Association) sta...
Cholesterol Calculator
Free LDL cholesterol calculator that analyzes your lipid panel: computes LDL via the Friedewald e...
Conception Calculator
Estimate your conception date from a due date, last period (LMP), or ultrasound dating scan. Free...
Dog Age Calculator
Convert your dog's age to human-equivalent years using the 2019 Cell Systems (Wang et al.) epigen...
EKG Calculator
Use our free EKG calculator to compute QTc using both Bazett and Fridericia formulas, derive hear...
Fat Intake Calculator
Use our free fat intake calculator to compute your daily fat grams based on calorie needs and goa...
Fiber Calculator
Use our free fiber calculator to determine your daily fiber recommendation based on age, sex, and...
Heart Rate Calculator
Free heart rate calculator using the Karvonen formula. Calculate your max heart rate (MHR), heart...
Heart Rate Zone Calculator
Use our free heart rate zone calculator with the Karvonen formula to compute 5 training zones (Re...
Heat Index Calculator
Calculate the heat index (apparent or feels-like temperature) from air temperature and relative h...