Free health tools
Health Tools & Calculators
A growing library of free health calculators and self-assessment tools. Nothing to install, no sign-up — just quick, private results in your browser.
A1C Calculator: Estimate Average Blood Glucose to A1C
Convert your average blood glucose into an estimated A1C percentage in seconds. It is free, needs no sign-up, and uses the standard eAG conversion.
Open tool →Activity Calorie Burn Estimator
Estimate how many calories you burn during any activity using MET values. Just enter your weight, chosen activity and time for a fast, free result.
Open tool →Allergy Risk Assessment
Answer a few quick questions to gauge your personal allergy risk level. This free screening highlights possible triggers so you can plan next steps.
Open tool →Blood Pressure Categorizer
Enter your systolic and diastolic numbers to see your blood pressure category. This free tool classifies each reading using standard clinical ranges.
Open tool →BMI Calculator
Calculate your Body Mass Index instantly from your height and weight. This free tool shows your BMI category and what a healthy weight range looks like.
Open tool →BMR Calculator
Find your Basal Metabolic Rate, the calories your body burns fully at rest. Enter age, sex, height and weight for a fast, free daily baseline figure.
Open tool →Body Fat Percentage Calculator
Estimate your body fat percentage using the proven U.S. Navy tape method. Enter a few simple measurements for a fast, free body composition result.
Open tool →Body Fat Distribution Analyzer: WHR and WHtR Tool
Analyze where your body stores fat using waist-hip and waist-height ratios. This free tool flags central-fat risk and explains what your numbers mean.
Open tool →Body Water Percentage Calculator
Estimate the share of your body weight that is made up of water in seconds. Enter your details for a free result and see how your hydration compares.
Open tool →Bone Health Risk Assessment
Check your risk factors for low bone density and osteoporosis quickly here. This free screening helps adults and seniors decide when to seek advice.
Open tool →Caloric Deficit Calculator
Work out the daily calorie deficit you need to reach your weight goal. This free tool turns your targets into clear, realistic daily calorie numbers.
Open tool →Calorie Needs Calculator
Estimate the calories you need each day based on your body and activity. This free TDEE-style tool gives a clear target for maintaining or losing weight.
Open tool →Calorie Tracker and Meal Planner
Log meals and plan your day around a calorie goal in one free tool. Track intake, balance your macros and stay on target with no sign-up needed at all.
Open tool →Carbohydrate Counting Tool
Plan your daily carbohydrate intake meal by meal with this free tool. It helps people managing diabetes or diet keep their carbs balanced and on target.
Open tool →Cardiovascular Risk Calculator
Estimate your risk of heart disease from key health and lifestyle inputs. This free screening tool helps you understand your numbers and your next steps.
Open tool →BMI Percentile Calculator for Kids: CDC Growth Chart
Find a child
Open tool →Cholesterol Ratio Calculator
Calculate your total-to-HDL cholesterol ratio to gauge your heart risk. Enter your lipid numbers for a fast, free result and see what the ratio means.
Open tool →What Is a Cystogram? Procedure, Prep and What to Expect
A cystogram is an X-ray that checks your bladder using contrast dye. Learn what to expect, how to prepare, whether it hurts and how long the test takes.
Open tool →Cystogram Report Tool
Create a clear cystogram report from a simple template in seconds. This free tool turns bladder imaging findings into an easy-to-read summary.
Open tool →Diabetes Risk Assessment
Estimate your type 2 diabetes risk from age, weight and family history. This free screening flags your risk level and when it is best to see a doctor.
Open tool →Dual Eye Vision Tester
Check each eye at home with this free digital Snellen chart vision tester. Follow the simple on-screen steps for a quick vision screening on any device.
Open tool →eGFR Calculator: CKD-EPI Kidney Function by Age & Race
Estimate kidney function with the CKD-EPI eGFR formula for free. Enter creatinine, age, sex and race to see your eGFR chart value and what it means.
Open tool →Fluid Retention and Parotid Swelling Relief Tools
Understand fluid retention and parotid gland swelling and how to ease them. Explore natural relief tips and simple tools to support comfort at home.
Open tool →Glycemic Load Calculator: How to Calculate GL Free
Calculate glycemic load using the GI times grams divided by 100 formula. This free tool shows a food
Open tool →Health Economic Assessment
See how regular walking could translate into real long-term health savings. This free tool estimates the value of activity for your budget and health.
Open tool →Health Risk Assessment
Answer a short questionnaire to gauge your overall health risk profile. This free check highlights chronic-disease factors and where to focus next.
Open tool →Heart Rate Zone Calculator
Find your five heart-rate training zones from your age and max heart rate. This free tool helps you train at the right intensity for your own goals.
Open tool →Hydration Calculator: Daily Water Needs by Weight
Work out your daily water needs from body weight using the 0.033 formula. This free tool shows how much water to drink and where the math comes from.
Open tool →Ideal Weight Calculator
Find your ideal weight range using the Devine formula for height and sex. This free tool gives you a realistic target to help guide your health goals.
Open tool →Immunization Scheduler
Track your child
Open tool →Insulin to Carb Ratio Calculator
Calculate your insulin-to-carb ratio with the widely used 500 rule. This free tool helps people with diabetes work out mealtime bolus insulin doses.
Open tool →Ketone Level Tracker
Log and interpret your blood ketone readings easily with this free tracker. See how your levels compare and stay on top of your keto or fasting goals.
Open tool →Lean Body Mass Calculator
Calculate your lean body mass using the trusted Boer formula for free. Enter height and weight to see your muscle-to-fat composition in a few seconds.
Open tool →FEV1 Calculator: Predicted FEV1 by Age, Height & Sex
Calculate your predicted FEV1 and see how to work it out by age and height. This free lung-function tool shows your result against normal values.
Open tool →Macronutrient Ratio Calculator
Split your daily calories into protein, fat and carbs with this free tool. Set a ratio that fits your goals and see the grams for each macronutrient.
Open tool →Medication Dosage Calculator
Estimate a weight-based medication dose using the mg-per-kg method here. This free tool gives a quick reference, but always confirm with a clinician.
Open tool →Meditation Progress Tracker
Track your meditation streaks and mindfulness goals with this free tool. Log your sessions, watch your progress grow and build a steady daily practice.
Open tool →Menstrual Cycle and Fertility Tracker
Track your period and ovulation to understand your cycle with this free tool. See your fertile windows and predicted dates so you can plan with ease.
Open tool →Metabolic Age Calculator
Estimate your metabolic age from your BMR and body details for free here. See how your metabolism compares to your chronological age in just seconds.
Open tool →Nutrient Density Calculator: How to Score Foods Free
Calculate a food
Open tool →Nutrient Shortfall Questionnaire
Answer a short questionnaire to spot the likely gaps in your daily diet. This free check highlights the nutrients you may be missing and how to add them.
Open tool →Posture Evaluation Tool
Assess your posture and spot back or neck strain with this free tool. Answer a few prompts to see risk areas and simple ways to improve your alignment.
Open tool →Pregnancy Chances Calculator
Estimate your chances of conceiving around your fertile window for free. This tool tracks ovulation timing to help you plan with far more confidence.
Open tool →Pregnancy Due Date Calculator
Estimate your due date from your last menstrual period quickly and free. This tool gives your expected delivery date and your key pregnancy milestones.
Open tool →Pulse Pressure Calculator
Calculate your pulse pressure from your blood pressure readings for free. See what the gap between systolic and diastolic may say about your heart.
Open tool →Resting Heart Rate Calculator: Normal BPM by Age
Check whether your resting heart rate is normal for your age and sex. This free tool explains what your beats-per-minute reading may mean for you.
Open tool →Running Pace Calculator
Work out your running pace, time or distance with this free calculator. Plan your race splits and training targets in pace per kilometer or per mile.
Open tool →Sleep Debt Calculator
Add up the sleep you have missed and see your accumulated sleep debt here. This free tool shows how much rest you owe and how to start catching back up.
Open tool →Sleep Quality Assessment
Answer a short survey to score your recent sleep quality for free here. This tool highlights what may be disrupting your rest and how you can improve it.
Open tool →Stamina Calculator
Estimate your stamina, endurance and VO2 max with this free calculator. See a clear cardiovascular fitness score and track your improvement over time.
Open tool →Stress Self-Assessment
Gauge your current stress level with this free self-assessment survey. Get a work-life balance score and some simple ideas to ease daily pressure.
Open tool →Symptom Checker
Describe your symptoms to explore the possible related conditions for free. This tool offers general guidance to help you decide when to see a doctor.
Open tool →Systolic Diastolic Calculator
Enter your systolic and diastolic numbers to find your BP category fast. This free tool classifies your reading and explains what the range means.
Open tool →TDEE Calculator
Estimate your Total Daily Energy Expenditure with the Mifflin-St Jeor rule. This free tool sets a clear calorie baseline for your activity level.
Open tool →Fertility Tracker Guide: Master Ovulation Timing
A full guide to tracking ovulation and maximizing your chance to conceive. Learn cycle basics, timing methods and how to use a fertility tracker well.
Open tool →eGFR Calculator Guide: Understand Kidney Function
The ultimate guide to eGFR calculators and what your score really means. Learn how kidney function is measured and how to read your results with ease.
Open tool →Virtual Health Risk Appraisal
Complete a virtual health risk appraisal to see a clear wellness snapshot. This free tool reviews your key factors and suggests where to focus first.
Open tool →VO2 Max Estimator
Estimate your VO2 max and cardiovascular fitness level quickly for free. Enter simple inputs to see your aerobic capacity and how it compares by age.
Open tool →Water Intake Optimization Tool
Fine-tune your daily water intake for your body and activity for free here. This tool builds a simple hydration plan to help you look and feel your best.
Open tool →Workout Recovery Time Estimator
Estimate how long your muscles need to recover after training for free. This tool helps you plan rest days so you can train smart and avoid burnout.
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