Browse 122 Health & Fitness Tools
Health and medical calculators including BMI, body fat, pregnancy tracking, calorie calculations, macro planning, and health assessment tools.
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7-Point Skinfold Body Fat Calculator
Calculate accurate body fat percentage using 7-site skinfold measurements with Jackson-Pollock equations for comprehensive body composition analysis.
ADHD ASRS Assessment
Screen for adult ADHD using the Adult ADHD Self-Report Scale (ASRS). Validated assessment for attention deficit hyperactivity disorder.
Albumin Creatinine Ratio Calculator
Calculate the Albumin-to-Creatinine Ratio (ACR) to assess kidney function and detect early signs of kidney damage. Essential for monitoring kidney health.
Aldrete Score Calculator
Evaluate post-anesthetic recovery readiness using the standardized Aldrete Scoring System for PACU discharge decisions.
Aortic Valve Area Calculator
Calculate aortic valve area using the continuity equation to assess aortic stenosis severity. Free online calculator using echocardiographic measurements.
Apgar Score Calculator
Calculate Apgar scores to assess newborn health immediately after birth. Evaluate vital signs and determine need for intervention.
Arterial Blood Gas (ABG) Calculator
Analyze arterial blood gas values for acid-base balance, oxygenation, and respiratory function. Free ABG interpretation calculator for medical professionals.
Arterial Blood Gas Analyzer
Comprehensive analysis and interpretation of arterial blood gas results. Assess acid-base balance and respiratory function.
ASI Addiction Severity Index
Use the Addiction Severity Index (ASI) for comprehensive assessment of addiction severity across multiple life domains and treatment planning.
ASSIST Screening Test
Use the WHO ASSIST (Alcohol, Smoking and Substance Involvement Screening Test) to assess substance use risks across multiple drug categories.
AUDIT-C Alcohol Questionnaire
Brief screening tool to identify hazardous drinking and alcohol use disorders. Validated questionnaire for clinical assessment.
Blood Alcohol Content (BAC) Calculator
Calculate your estimated blood alcohol concentration based on weight, gender, and consumption. Understand BAC effects and legal implications.
Blood Pressure Calculator
Calculate and analyze your blood pressure readings. Understand systolic and diastolic values and their implications for your cardiovascular health.
Blood Type Predictor Calculator
Predict possible blood types for children based on parental blood types. Understand ABO and Rh factor inheritance patterns.
BMI Calculator
Calculate your Body Mass Index (BMI) to determine if you're at a healthy weight. Simple, accurate BMI calculator with health recommendations.
Body Adiposity Index (BAI) Calculator
Calculate Body Adiposity Index (BAI) using hip circumference and height. Alternative to BMI for body fat assessment without requiring weight.
Body Fat Calculator
Calculate your body fat percentage using multiple methods including Navy formula, BMI method, and skinfold measurements. Track body composition accurately.
Body Mass Index (BMI) For Men
Calculate BMI specifically calibrated for men. Get accurate body mass index results with male-specific health recommendations.
Body Mass Index (BMI) For Women
Calculate BMI specifically calibrated for women. Get accurate body mass index results with female-specific health recommendations.
Body Proportions Calculator
Calculate ideal body proportions based on the golden ratio and your height. Get personalized measurement goals for a balanced physique.
Breathalyzer Test
Calculate estimated Blood Alcohol Content (BAC) using the Widmark formula. Educational tool for understanding alcohol impairment levels and legal limits.
Bruce Protocol Treadmill Test Calculator
Calculate estimated VO2 max and cardiovascular fitness using Bruce Protocol treadmill test results. Free exercise stress test calculator for healthcare professionals.
BUN to Creatinine Ratio Calculator
Calculate the BUN to creatinine ratio to assess kidney function and hydration status. Interpret your lab results with our free medical calculator.
Burns Fluid Estimator Calculator
Calculate fluid resuscitation requirements for burn patients using the Parkland Formula. Essential tool for burn care and emergency medicine.
CAD-ILD GERD Assessment
Assess GERD symptoms and risk factors in patients with Connective Tissue Disease-associated Interstitial Lung Disease.
CAGE Alcohol Screening
Screen for alcohol use disorders using the CAGE questionnaire. Quick assessment tool for alcohol dependency.
Centor Score Calculator
Assess streptococcal pharyngitis probability using Centor criteria to guide antibiotic treatment decisions.
Cerebral Blood Flow Calculator
Calculate cerebral perfusion pressure and estimate brain blood flow to assess neurological risk and guide treatment.
CHA₂DS₂-VASc Score Calculator
Calculate stroke risk in patients with atrial fibrillation using the CHA₂DS₂-VASc score. Determine appropriate anticoagulation therapy with our free calculator.
Child-Turcotte-Pugh Calculator
Assess liver disease severity in children using the Child-Turcotte-Pugh classification. Calculate CTP score and prognosis.
Circadian Rhythm Calculator
Estimate your daily alertness and sleepiness peaks based on your wake time and chronotype. Plan demanding tasks, exercise, and rest around your body clock.
Clark's Rule Calculator
Calculate pediatric medication doses using Clark's Rule based on weight. Accurate weight-based dosing for children and adolescents.
Conception Calculator
Calculate your conception date based on due date, current pregnancy stage, or LMP. Determine when you likely conceived your baby.
Corticosteroid Conversion Calculator
Convert between different corticosteroid medications with equivalent anti-inflammatory potency. Essential for medication transitions and dose optimization.
Cowling's Rule Calculator
Calculate pediatric medication doses using Cowling's Rule based on age. Safe and accurate dosing calculations for children aged 1-12 years.
COWS Score - Clinical Opioid Withdrawal Scale
Assess opioid withdrawal severity using the validated Clinical Opioid Withdrawal Scale (COWS). Monitor withdrawal symptoms and guide treatment.
CRAFFT Screening Test
Use the CRAFFT screening tool to assess substance abuse risk in adolescents and young adults. Validated screening questionnaire for healthcare providers.
Creatinine Clearance Calculator
Calculate your creatinine clearance and estimate kidney function using the Cockcroft-Gault formula. Free online tool for kidney health assessment.
CSF Cell Count Calculator
Analyze cerebrospinal fluid cell counts to diagnose CNS infections, inflammation, and neurological conditions.
Dream Journal
Keep a private dream journal to record, tag, and explore recurring themes and emotions. Build a personal dream history and improve your dream recall over time.
Drops Per Minute Calculator
Calculate IV flow rate in drops per minute (gtt/min) for gravity infusions. Essential tool for healthcare professionals and nursing students.
Drug Abuse Screening Test
Take the validated Drug Abuse Screening Test (DAST-10) to assess potential substance use disorders. Get personalized recommendations based on your risk level.
Due Date Calculator
Calculate your pregnancy due date using LMP, conception date, or ultrasound. Track pregnancy milestones and trimesters with our comprehensive calculator.
E-Juice Calculator
Calculate precise e-juice mixing ratios for custom vaping liquids. Determine nicotine levels, VG/PG ratios, and flavor concentrations for DIY e-liquid blending.
Ejection Fraction Calculator
Calculate left ventricular ejection fraction using stroke volume and end-diastolic volume. Free online tool for cardiac function assessment.
Fagerstrom Test for Nicotine Dependence
Evaluate nicotine addiction severity with the validated Fagerstrom Test. Assess dependence levels, withdrawal risk, and get personalized cessation recommendations.
Fertility Window Calculator
Calculate your fertility window and most fertile days for conception. Advanced fertility tracking with multiple calculation methods.
FIB-4 Score Calculator
Non-invasive assessment of hepatic fibrosis using laboratory parameters and age. FIB-4 index for liver fibrosis evaluation.
Fick Cardiac Output Calculator
Calculate cardiac output using the Fick principle with oxygen consumption and arteriovenous oxygen difference. Free online tool for healthcare professionals.
Fractional Excretion of Urea Calculator
Calculate fractional excretion of urea to differentiate prerenal from intrinsic acute kidney injury causes.
Framingham Risk Score Calculator
Calculate 10-year cardiovascular disease risk using the Framingham Risk Score. Free online tool for cardiovascular risk assessment and prevention.
Fried's Rule Calculator
Calculate medication doses for infants under 2 years using Fried's Rule. Safe dosing calculations based on age in months.
GAD-7 Anxiety Assessment
Complete the GAD-7 generalized anxiety disorder assessment. Screen for anxiety disorders with this validated clinical tool.
Gestational Diabetes Diet Calculator
Create a personalized meal plan for managing gestational diabetes during pregnancy. Calculate optimal calorie and carbohydrate needs based on your measurements.
Glasgow-Blatchford Bleeding Score
Risk stratification tool for upper gastrointestinal bleeding to predict need for intervention. Validated scoring system for emergency assessment.
Glasgow-Blatchford Bleeding Score (Alternative)
Alternative implementation of Glasgow-Blatchford Score for quick upper GI bleeding risk assessment and patient triage.
Hamilton Anxiety Rating Scale
Evaluate anxiety levels using the Hamilton Anxiety Rating Scale. Clinical assessment of anxiety symptoms and severity.
Hardy-Weinberg Equilibrium Calculator
Calculate allele and genotype frequencies using Hardy-Weinberg equilibrium principles. Free population genetics calculator for biology students and researchers.
HbA1c Calculator
Convert HbA1c values between units and determine average blood glucose levels for diabetes management and monitoring.
Heart Rate Based Calorie Burn Calculator
Calculate calories burned during exercise using heart rate data. Get precise energy expenditure estimates based on your actual workout intensity and duration.
Height Estimator Calculator
Estimate your child's potential adult height based on current measurements and growth patterns. Includes percentile rankings and growth analysis.
Ideal Body Proportions Calculator
Calculate your ideal body measurements and proportions based on scientific ratios, golden ratio principles, and aesthetic standards for optimal physical development.
Ideal Proportions for Growth Calculator
Calculate ideal body proportions for muscle growth. Plan balanced development across muscle groups for aesthetic physique building.
Insulin Dosage Calculator
Calculate your insulin dosage based on blood glucose levels, carbohydrate intake, and physical activity. Free online tool for diabetes management.
IV Drip Rate Calculator
Calculate intravenous fluid drip rates for safe medical administration. Essential tool for healthcare professionals and nursing students with gravity infusion calculations.
Jet Lag Calculator
Generate a science-based day-by-day jet lag recovery plan. Uses the Eastman-Burgess light therapy algorithm to calculate optimal light exposure and melatonin timing for any time zone shift.
Karvonen Heart Rate Calculator
Calculate personalized heart rate training zones using the Karvonen formula. Optimize workout intensity with accurate heart rate reserve calculations for better fitness results.
Kids Sleep Calculator
Calculate the ideal bedtime for your child based on age group and wake-up time. Uses AAP and NSF evidence-based sleep duration guidelines for newborns through teenagers.
Lean Body Mass Calculator
Calculate your lean body mass (LBM) - the weight of everything in your body except fat. Essential for fitness planning and nutrition.
Life-Ticks for Alcoholic Hepatitis
Prognostic tool to predict short-term and long-term survival in patients with alcoholic hepatitis. Comprehensive survival assessment.
Lung Capacity Calculator
Estimate predicted lung volumes and capacity based on demographics to assess respiratory function and health.
Lung Closing Capacity Calculator
Estimate lung closing capacity to assess small airway function and early respiratory disease detection.
Luteal Phase Calculator
Calculate and analyze your luteal phase length for fertility tracking. Assess luteal phase defect and optimize conception timing.
Maddrey's Discriminant Function
Assess severity and predict short-term mortality in acute alcoholic hepatitis. Guide corticosteroid therapy decisions with validated scoring.
Maintenance Fluid Calculator
Calculate daily fluid requirements for pediatric patients using the Holiday-Segar method. Essential for pediatric fluid management.
MAST Alcohol Test
Take the Michigan Alcohol Screening Test (MAST) to assess potential alcohol problems and dependency. Comprehensive alcohol abuse evaluation tool.
Mean Arterial Pressure (MAP) Calculator
Calculate mean arterial pressure from systolic and diastolic blood pressure. Free online MAP calculator for hemodynamic assessment.
Menstrual Cycle Calculator
Calculate and track your menstrual cycle patterns. Predict next period, analyze cycle health, and understand your reproductive health.
Mifflin St. Jeor Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the most accurate Mifflin St. Jeor equation for nutrition planning.
Nap Timer
Set the perfect nap duration with timers for 20-minute power naps, 30-minute recovery naps, or 90-minute full-cycle naps. Wake up refreshed, not groggy.
NIDA Drug Screening Tool
Use the NIDA Modified ASSIST screening tool to assess drug use patterns and identify potential substance abuse. Professional healthcare assessment tool.
OOWS - Objective Opioid Withdrawal Scale
Clinical assessment of objective opioid withdrawal signs using the Objective Opioid Withdrawal Scale (OOWS).
Opioid Conversion Calculator
Convert between different opioid medications using established bioequivalence ratios for safe medication transitions.
ORT - Opioid Risk Tool
Assess risk of opioid abuse and addiction using the Opioid Risk Tool (ORT). Predict potential for opioid misuse.
Ovulation Calculator
Calculate your ovulation date and fertile window based on your menstrual cycle. Free ovulation tracker for conception planning and family planning.
Ovulation Symptoms Tracker
Track ovulation symptoms including cervical mucus, BBT, and physical signs. Comprehensive fertility awareness tracking tool.
Oxygen Content Calculator
Calculate total arterial oxygen content including hemoglobin-bound and dissolved oxygen for respiratory assessment.
PEFR Calculator
Calculate predicted peak expiratory flow rate and compare with measured values for respiratory function assessment.
PHQ-9 Depression Assessment
Complete the validated PHQ-9 depression assessment questionnaire. Assess depression severity with this widely-used clinical screening tool.
POSIT Screening Tool
Use the Problem Oriented Screening Instrument for Teenagers (POSIT) to assess substance abuse and related problems in adolescents.
Pregnancy Week Calculator
Calculate how many weeks pregnant you are and track fetal development. Comprehensive pregnancy week calculator with development milestones.
Pulmonary Vascular Resistance (PVR) Calculator
Calculate pulmonary vascular resistance (PVR) to evaluate pulmonary hypertension severity and treatment options. Free online calculator for healthcare professionals.
QIDS Depression Assessment
Assess depression severity using the Quick Inventory of Depressive Symptomatology (QIDS). Comprehensive depression evaluation tool.
Relaxation & Breathing Exercises
Guided breathing and relaxation techniques to help you fall asleep faster. Includes 4-7-8 breathing, box breathing, progressive muscle relaxation, and body scan.
Resting Metabolic Rate Calculator
Calculate your Resting Metabolic Rate to determine baseline calorie needs. Understand the energy your body requires at complete rest.
Rockall Score for Alcoholic Hepatitis
Risk assessment tool to predict mortality in patients with alcoholic hepatitis. Clinical scoring system for prognosis evaluation.
Safe Period Calculator
Calculate safe period days for natural family planning using the calendar method. Track fertile and safe days for contraception planning.
Saliva Drug Test
Learn about saliva drug testing methods, detection windows, and accuracy. Educational resource for understanding oral fluid drug screening.
SAR (Specific Absorption Rate) Calculator
Calculate Specific Absorption Rate (SAR) to measure radio frequency energy absorbed by the body. Assess exposure from mobile devices and wireless equipment.
SASSI Screening Inventory
Use the Substance Abuse Subtle Screening Inventory (SASSI) to identify individuals with high probability of substance dependence disorders.
Scleroderma Pseudo-tumors Assessment
Clinical assessment tool for evaluating pseudo-tumor formations in systemic sclerosis patients. Specialized rheumatology evaluation.
SDS Severity Scale
Use the Severity of Dependence Scale (SDS) to measure the degree of dependence experienced by users of different types of drugs.
Sleep Cycle Calculator
Calculate optimal bedtimes and wake-up times based on 90-minute sleep cycles. Wake feeling refreshed by timing your alarm to end of a light sleep stage.
Sleep Debt Calculator
Track cumulative sleep debt or surplus over days and weeks. See how much sleep you owe yourself and plan recovery based on your personal sleep target.
Sleep Disorder Risk Assessment
Screen for risk factors linked to insomnia, sleep apnea, and restless leg syndrome. Answer 15 evidence-informed questions and receive a personalized risk profile.
Sleep Duration Calculator
Calculate total sleep time from your bedtime, wake time, and overnight interruptions. Compare your result to NSF sleep duration recommendations for your age group.
Sleep Efficiency Calculator
Calculate your sleep efficiency — the percentage of time in bed you spend actually sleeping. A score of 85% or higher indicates healthy, consolidated sleep.
Sleep Environment Checklist
Assess your bedroom across light, temperature, noise, bedding, and electronics. Get a prioritized action list for better sleep hygiene starting tonight.
Sleep Onset Latency Calculator
Estimate how long it takes to fall asleep based on caffeine, screen time, stress, and bedroom conditions. Identify which evening habits are delaying your sleep.
Sleep Quality Assessment
Assess your sleep quality across 7 key domains including sleep onset, disturbances, and daytime function. Get a personalized sleep health score in minutes.
Smart Alarm Scheduler
Find the best alarm times to wake during a light sleep stage and avoid grogginess. Calculate optimal wake windows based on your bedtime and 90-minute sleep cycles.
Smoking Cost Calculator
Calculate how much smoking costs you financially over time. See the true price of cigarettes and potential savings from quitting with our free calculator.
SOWS - Subjective Opioid Withdrawal Scale
Self-assessment tool for opioid withdrawal symptoms using the Subjective Opioid Withdrawal Scale (SOWS).
Stool Osmolal Gap Calculator
Calculate stool osmotic gap to determine if diarrhea is osmotic or secretory in nature. Essential diagnostic tool for gastroenterologists and clinicians.
SUDDS Diagnostic Schedule
Use the Substance Use Disorder Diagnostic Schedule (SUDDS) for comprehensive diagnostic assessment of substance use disorders.
Systemic Vascular Resistance Calculator
Calculate Systemic Vascular Resistance to assess afterload and peripheral vascular tone. Essential for hemodynamic monitoring in critical care.
Total Parenteral Nutrition (TPN) Calculator
Calculate nutritional requirements for patients requiring intravenous nutrition support. Determine caloric needs, protein requirements, and fluid volumes for TPN.
Waist to Hip Ratio Calculator
Calculate waist-to-hip ratio (WHR) to assess body fat distribution and cardiovascular disease risk. Free health screening tool with risk interpretation.
West Nomogram Calculator
Calculate body surface area (BSA) for precise medication dosing using the West Nomogram. Accurate BSA-based dose calculations.
Westley Group Score Calculator
Calculate the Westley Group Score to assess croup severity in children. Determine appropriate treatment and management based on clinical parameters.
Wilcomena Daficia Assessment
Specialized assessment tool for gastrointestinal motility disorders and functional dyspepsia evaluation.
Young's Rule Calculator
Calculate pediatric drug doses using Young's Rule for more conservative dosing. Safer medication calculations for children based on age.