Health
BMI, calorie intake, body fat percentage, and wellness metrics.
49 calculators in Health
Body
Army Body Fat Calculator
Estimate body fat using the US military tape test method.
BAC Calculator
Estimate blood alcohol concentration based on drinks, weight, and time.
BMI Calculator
Calculate your Body Mass Index and understand what it means for your health.
Child BMI Calculator
Calculate BMI percentile for children and teens.
Body Fat Calculator
Estimate your body fat percentage using body measurements.
Body Shape Calculator
Determine your body shape type from your bust, waist, and hip measurements.
Body Surface Area Calculator
Calculate body surface area (BSA) using Du Bois, Mosteller, and Haycock formulas.
FFMI Calculator
Calculate Fat-Free Mass Index for muscle development assessment.
Ideal Weight Calculator
Find your ideal weight range based on height, age, and gender.
Lean Body Mass Calculator
Calculate your lean body mass from weight and body fat percentage.
Vision Calculator
Convert between Snellen, decimal, and LogMAR vision notation systems.
Waist-to-Hip Ratio Calculator
Calculate waist-to-hip ratio for health assessment.
Nutrition
Alcohol Calorie Calculator
Calculate calories in alcoholic beverages.
BMR Calculator
Calculate your Basal Metabolic Rate for diet planning.
Caffeine Calculator
Track daily caffeine intake and estimate when it wears off.
Calorie Calculator
Determine your daily calorie needs based on age, weight, and activity.
Creatine Dosage Calculator
Calculate your optimal creatine loading and maintenance dose based on body weight using ISSN guidelines.
Intermittent Fasting Calculator
Track intermittent fasting windows and eating periods.
Macro Calculator
Calculate ideal protein, carbs, and fat intake for your goals.
Protein Cost Efficiency Calculator
Compare cost per gram of protein across foods to find the most budget-friendly protein sources.
Protein Intake Calculator
Calculate recommended daily protein based on weight and goals.
TDEE Calculator
Calculate Total Daily Energy Expenditure for meal planning.
Water Intake Calculator
Calculate how much water you should drink daily.
Weight Loss Calculator
Estimate how long it will take to reach your goal weight based on your calorie intake and activity level.
Fitness
Gym vs Home Gym Cost Calculator
Compare gym membership costs against home gym equipment investment to find the break-even point and long-term savings.
Heart Rate Zone Calculator
Find optimal heart rate zones for different exercise intensities.
One Rep Max Calculator
Estimate your one-rep max for any weightlifting exercise.
Running Pace Calculator
Calculate running pace, finish time, or distance.
Sleep Calculator
Find the best times to sleep and wake up based on sleep cycles.
Sleep Debt Calculator
Calculate accumulated sleep debt and recovery time.
Steps to Calories Calculator
Convert step count to estimated calories burned based on your weight, height, and walking pace.
Target Heart Rate Calculator
Find your target heart rate zone for optimal exercise intensity.
VO2 Max Calculator
Estimate your VO2 Max using the Cooper 12-minute run test or resting heart rate method.
Walking Calorie Calculator
Calculate calories burned while walking based on your weight, duration, and pace.
Walking Distance Calculator
Calculate distance covered based on steps and stride length.
Pregnancy
Breastfeeding Calorie Calculator
Calculate extra calorie needs during breastfeeding.
Gestational Age Calculator
Calculate gestational age and trimester from your due date or last menstrual period.
Ovulation Calculator
Predict your most fertile days for family planning.
Pregnancy Weight Gain Calculator
Track recommended weight gain during pregnancy based on your pre-pregnancy BMI.
Wellness
A1C Calculator
Convert between A1C and estimated average blood glucose.
Blood Pressure Calculator
Check your blood pressure category and understand what your readings mean for your health.
Dental Insurance Break-Even Calculator
Calculate whether dental insurance saves you money by comparing premiums and coverage against your expected dental costs.
Drug Dosage by BSA Calculator
Calculate drug dose based on body surface area (BSA) using the Mosteller formula. For educational reference only.
IV Drip Rate Calculator
Calculate IV drip rate (drops/min), flow rate (mL/hr), and total drops from volume, infusion time, and drop factor. Educational reference only.
NNT Calculator
Calculate Number Needed to Treat (NNT), Absolute Risk Reduction (ARR), and Relative Risk Reduction (RRR) from control and experimental event rates.
Sensitivity & Specificity Calculator
Calculate sensitivity, specificity, PPV, NPV, accuracy, F1 score, and likelihood ratios from a 2×2 confusion matrix.
Smoking Cessation Timeline
Track your body's recovery milestones after quitting smoking, from 20 minutes to 15 years.
US Health Insurance Cost Calculator
Compare two US health insurance plans by total annual cost, including premiums, deductible, coinsurance, and out-of-pocket maximum.
Vision Insurance Break-Even Calculator
Calculate whether vision insurance saves you money by comparing annual premiums and copays against your expected eye care costs.