Health Calculators
Welcome to health calculators! Whether you are a doctor, a medical student or a patient, you will find answers to your medical questions here, as well as receive a lot of scientifically proven information. What is my renal function and what does it mean? How much blood do I have? How to dose medication to children? What is my risk of having lung cancer? From BMI calculators, sleep calculators, and our protein calculator to the body fat calculator, we’ve got your health covered. CURB-65 and MELD Score sound strange to you? Our calculators will explain these terms and help you determine your own result! Don’t hesitate, solve your medical issues with us!
Body measurements calculators 📏
6 toolsBody Fat Calculator
Estimate body fat percentage, fat mass, and lean muscle mass using the U.S. Navy circumference method.
Ideal Weight Calculator
Find your healthy and ideal body weight range using Devine, Robinson, Miller, and Hamwi medical equations.
Lean Body Mass Calculator
Calculate Lean Body Mass (LBM), Fat Mass, and Body Fat % using validated Boer, James, Hume, and pediatric Peters anthropometric formulas.
Body Type Calculator
Identify your female body shape (Hourglass, Bottom Hourglass, Top Hourglass, Spoon, Pear, Rectangle, Inverted Triangle) and WHO Waist-to-Hip Ratio with custom styling tips.
Body Surface Area Calculator
Calculate Body Surface Area (BSA) in square meters and square feet using 6 peer-reviewed equations (Mosteller, Du Bois, Haycock, Gehan & George, Boyd, Fujimoto).
Overweight Calculator
Calculate exact excess body weight above the healthy normal BMI limit (24.9), healthy weight ranges, and 5%–10% metabolic reduction milestones.
BMI calculators ⚖️
3 toolsBMI Calculator
Calculate Body Mass Index (BMI) using US Imperial or Metric units, with WHO health classification and ideal weight range.
Healthy Weight Calculator
Calculate the medically recommended healthy weight range for your height based on WHO / CDC normal BMI standards (18.5 – 24.9 kg/m²).
Anorexic BMI Calculator
Evaluate Body Mass Index (BMI) against DSM-5 Anorexia Nervosa severity criteria and WHO underweight classifications with healthy weight targets.
Army calculators 🎖️
1 toolsDietary calculators 🥗
6 toolsCalorie Calculator
Determine your daily caloric needs for weight maintenance, healthy weight loss, or muscle gain based on Mifflin-St Jeor equation.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) — the minimum energy your body burns at rest to keep vital organs functioning.
Macro Calculator
Calculate optimal daily grams of protein, carbohydrates, and healthy fats tailored to your fitness goals.
Protein Calculator
Calculate your daily dietary protein requirements in grams and percentage of calories using USDA RDA, AMDR, and ISSN sports nutrition standards.
Fat Intake Calculator
Calculate your daily dietary fat intake in grams and calories based on USDA AMDR (20%–35%), with saturated, MUFA, PUFA, and keto diet breakdowns.
TDEE Calculator
Calculate your exact Total Daily Energy Expenditure (TDEE) and BMR across Mifflin-St Jeor, Revised Harris-Benedict, and Katch-McArdle formulas.
Sleep calculators 😴
1 toolsGynecology & pregnancy calculators 🤰
7 toolsPregnancy Calculator
Calculate your estimated due date, current gestational age in weeks/days, and key trimester milestones.
Pregnancy Conception Calculator
Estimate your most probable conception date, 6-day fertile intercourse window, and gestational milestone timeline using Due Date, LMP, or Ultrasound dating.
Due Date Calculator
Calculate your estimated delivery date (EDD), current gestational age, trimester dates, and 40-week milestone calendar using LMP, ultrasound, conception date, or IVF transfer.
Pregnancy Weight Gain Calculator
Calculate and track recommended total and week-by-week gestational weight gain targets based on pre-pregnancy BMI and IOM guidelines.
Ovulation Calculator
Calculate your exact ovulation day, 6-day fertile window, peak conception dates, and multi-cycle pregnancy planning calendar.
Conception Calculator
Calculate your most likely conception window, peak ovulation date, pregnancy test timing, and projected full-term due date.
Period Calculator
Calculate your next period start and end dates, countdown, estimated ovulation, and multi-month menstrual cycle calendar.
Addiction medicine calculators 🚬
1 toolsPediatric calculators 🧒
2 toolsGFR Calculator
Calculate estimated Glomerular Filtration Rate (eGFR) and Chronic Kidney Disease (CKD) stages using 2021 CKD-EPI race-free standard, comparative 2009 CKD-EPI, MDRD, and Bedside Schwartz equations.
Height Calculator
Predict your child’s adult height based on clinical linear regression (Khamis-Roche method) and mid-parental genetic targets.
Other calculators
2 toolsCarbohydrate Calculator
Calculate daily carbohydrate needs in grams and calories based on BMR, TDEE, activity level, and dietary strategy (Low-Carb, Moderate, or Endurance).
Weight Watcher Points Calculator
Estimate dietary points across SmartPoints, PointsPlus, and Classic systems, and calculate your Daily Points Target allowance.
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Health Calculators & FAQs
Q1 What calculators are included in the Health category? ▾
Our Health hub features 29 calculators across 9 specialized subcategories: Body measurements calculators, BMI calculators ️, Army calculators ️, Dietary calculators, Sleep calculators, Gynecology & pregnancy calculators, Addiction medicine calculators, Pediatric calculators, and more.
Q2 Are calculations verified for mathematical and institutional accuracy? ▾
Yes. Every tool is constructed upon certified institutional and scientific formulas. All mathematical equations execute entirely client-side in your local browser for instant, reliable, and privacy-preserving calculations.
Q3 Are these Health calculators mobile friendly? ▾
Yes, all 29 calculators, comparison tables, and result charts are 100% responsive, optimized for smartphones, tablets, laptops, and desktop computers.
Q4 Can I embed any of these Health calculators on my website? ▾
Yes! Every calculator includes an embed option so you can seamlessly embed responsive calculation widgets into your personal blog, academic website, or corporate portal.