BMI Calculator
Determine your Body Mass Index (BMI) and see if you fall in healthy ranges.
Calorie Calculator
Estimate the number of daily calories required to maintain, lose, or gain weight.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR)—the energy expended at complete rest.
TDEE Calculator
Find your Total Daily Energy Expenditure (TDEE) based on your activity level.
Body Fat Calculator
Estimate your body fat percentage using US Navy circumference measurements.
Ideal Weight Calculator
Discover your healthy target weight range based on height, gender, and frame size.
Water Intake Calculator
Calculate your recommended daily water consumption adjusted for weight and activity.
Protein Calculator
Determine daily protein requirements for muscle gain, maintenance, or weight loss.
Macro Calculator
Calculate custom macronutrient breakdowns (carbs, proteins, fats) for your diet goals.
Pregnancy Due Date Calculator
Estimate your pregnancy due date based on the date of your last menstrual period.
Lean Body Mass Calculator
Calculate your Lean Body Mass (LBM) and fat mass based on body fat percentage.
BAC Calculator
Estimate your Blood Alcohol Concentration (BAC) over time.
Heart Rate Calculator
Calculate your maximum and resting heart rate zones for cardiovascular training.
Running Pace Calculator
Calculate running pace per mile or kilometer for targeted race distances.
Pace Calculator
Calculate average speed or pace for custom distances and times.
Calories Burned Calculator
Estimate calories burned during physical activities based on MET values.
Healthy Weight Calculator
Calculate your healthy ideal weight range based on BMI guidelines.
Waist-to-Hip Ratio Calculator
Calculate your Waist-to-Hip ratio to assess abdominal fat distribution risks.
Waist-to-Height Ratio Calculator
Evaluate your waist-to-height ratio to assess cardiovascular risk.
FFMI Calculator
Calculate your Fat-Free Mass Index (FFMI) to evaluate muscular development.
Body Surface Area Calculator
Calculate your total Body Surface Area (BSA) in square meters.
One Rep Max Calculator
Estimate your lifting One Rep Max (1RM) based on submaximal reps.
Target Heart Rate Calculator
Calculate target heart rate training intensity zones using the Karvonen formula.
Ovulation Calculator
Estimate your fertile window and ovulation day based on menstrual cycles.
Sleep Calculator
Calculate optimal times to fall asleep or wake up based on 90-minute sleep cycles.
Army Body Fat Calculator
Calculate your body fat percentage using the official US Army circumference method.
A1C Calculator
Convert between HbA1c and estimated Average Glucose (eAG) values in mg/dL or mmol/L, with diabetes risk classification.
No matching calculators
Try searching for terms or browse another category.