All Health Calculators — 264+ Expert Tools by Category

Body Metrics & Weight

Adult BMI Calculator for Men & Women — WHO BMI Guide Body Surface Area Calculator (BSA) for Medical Dosing Navy Body Fat Calculator — Official U.S. Navy Tape Test Body Composition Calculator — Fat, Lean Mass Breakdown Body Measurement Calculator: Wrist Size & Frame Guide Body Shape Calculator & Guide Based on Measurements Healthy Weight Range Calculator — BMI Range by Height Obesity Calculator: BMI Obesity Class 1–3 Checker Guide Overweight Calculator: BMI Category, Risks & Guidance Body Fat Calculator — Percentage for Men & Women (Tape)Frame Size Calculator — Small, Medium, or Large Build Lean Body Mass Calculator (LBM) — Fat‑Free Mass Estimate Waist to Height Ratio Calculator (WHtR) — Quick Result Weight Gain Calculator for Bulking and Muscle Building Weight Loss Calorie Calculator — Plan a Safe Deficit Weight Loss Percentage Calculator — Track Your Progress Child BMI Calculator — Percentile by Age and Sex (CDC)Ideal Body Weight Calculator — Devine, Hamwi, Robinson Army Body Fat Calculator — AR 600‑9 Standard Compliance Body Roundness Index Calculator (BRI) — Height & Waist Body Type Calculator: Identify Your Somatotype Fast FFMI Calculator — Fat‑Free Mass Index by Height & Weight Muscle Mass Calculator — Estimate Skeletal Muscle (SMM)Waist to Hip Ratio Calculator (WHR) for Health Risk Weight Loss Calculator by Date

Nutrition & Diet

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Protein Calculator for Weight Loss: Set Your Cutting Target Calorie Calculator: Daily TDEE and Intake Estimate Calorie Intake Calculator: Daily Calories for Your Goal Chipotle Bowl Calorie Calculator: Build and Track Macros Daily Calorie Calculator — Personalized TDEE by Activity Nutrition Calculator: Analyze Food Macros & Micros Macronutrient Calculator: Protein, Carbs, and Fat by Goal Metabolic Rate Calculator: BMR, RMR & TDEE Estimate Recipe Nutrition Calculator: Per‑Serving Macros & Labels Starbucks Nutrition Calculator: Calories & Macros for Drinks Water Intake Calculator: Daily Needs by Weight & Age BMR Calculator: Basal Metabolic Rate by Proven Formulas Fat Calculator: Daily Fat Intake Planner | Free Tool How Much Water Should I Drink Calculator — Daily Goal Macro Calculator: Daily Protein, Carbs & Fat Targets Protein Calculator: Daily Protein by Goal & Activity Recipe Calorie Calculator: Total & Per-Serving Calories RMR Calculator: Resting Metabolic Rate Estimator Online TDEE Calculator: Daily Maintenance Calories (Free)Carb Calculator: Set Daily Carbohydrate Targets Online Keto Calculator: Calculate Your Ketogenic Diet Macros Maintenance Calories Calculator — Daily Energy to Maintain Subway Calorie Calculator — Build and Track Calories Calorie Deficit Calculator — Set a Safe Daily Deficit Chipotle Calorie Calculator: Count Calories as You Build Chipotle Nutrition Calculator: Build Bowls, Burritos, Tacos Fast Food Calculator: Calories, Macros, Sodium, Sugar Chipotle Macro Calculator: Protein, Carbs, and Fat Diet Calculator: Set a Safe Deficit or Surplus Plan Fasting Calculator: Plan Daily Fasts & Eating Windows Food Calorie Calculator: Calories per Serving or 100g Hydration Calculator: Personal Daily Water Goal & Tips Intermittent Fasting Calculator: Plan Windows & Schedules Keto Macro Calculator: Net Carbs, Protein & Fat for Ketosis Macro Calculator for Weight Loss: Fat-Loss Macros Made Easy Meal Plan Calculator: Create a Simple Custom Diet Plan Protein Intake for Muscle Gain Calculator: Build Lean Mass Starbucks Calorie Calculator: Customize Drinks by Size Subway Nutrition Calculator: Sandwich Calories & Macros Taco Bell Nutrition Calculator for Calories & Macros TDEE Calculator to Lose Weight — Plan Your Deficit

Fitness & Exercise

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Recovery Calculator: Readiness Score, Rest & Training Plan Agility Calculator for T‑Test and Pro Agility (5‑10‑5)Speed, Agility & Power — Athletic Performance Calculator Bench Press Calculator — 1RM Max, Sets & Plate Math MPH Calculator: Speed and Pace Converter for Runners RPE Calculator: Set Training Intensity & Load Accurately Running Pace Calculator: Speed, Splits, and Finish Time Sprint Calculator: Pace, Speed, Time & Split Planner Superset Calculator: Plan Pairings, Rest, Time & Volume Training Volume Calculator: Sets × Reps × Load Tracker Treadmill Calorie Calculator: Speed, Incline, and Time VO2 Max Calculator — Estimate Fitness Level Online, Free Workout Calculator: Build Training Plans that Progress Deadlift Calculator — 1RM, Working Sets & Plate Math Heart Rate Calculator: Target Zones & Max HR Guide Max Heart Rate Calculator – Accurate Maximum Heart Rate Mile Pace Calculator – Accurate Pace per Mile & Splits Target Heart Rate Calculator Estimate Jump Height & Power — Vertical Jump Calculator Injury Recovery Calculator: Set Expectations & Milestones One Rep Max Calculator — 1RM, Sets, RPE & Plate Math Rep Max Calculator – Rep Calculator for 1–12RM Training Running Calorie Calculator — Calories Burned by Pace & Time Strength Level Calculator — Benchmark Lifts by Bodyweight Calorie Burn Calculator for Exercise and Activities Heart Rate Zone Calculator – Heart Rate Zones Calculator Walking Calorie Calculator — Calories Burned Walking 5K Pace Calculator — Race Splits & Finish Time Endurance Calculator – Pace, Time, and Distance Planner Half Marathon Pace Calculator – Race Splits & Time Marathon Pace Calculator – Race Splits & Finish Time Muscle Recovery Calculator: Estimate Time to Rebuild Post Workout Recovery Calculator: Cooldown & Refeed Guide Race Pace Calculator – Finish Time & Splits – Quick Results Rest Day Calculator: Find Your Ideal Recovery Days Rest Time Calculator: Set & Interval Plans for Workouts Squat Max Calculator – 1RM Squat – Quick Results Today VDOT Calculator – Daniels Training Paces – Get Quick Results Zone 2 Heart Rate Calculator – Aerobic Training Zone

Women's Health & Pregnancy

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Gestational Age Calculator: How Many Weeks Pregnant Am I?Implantation Calculator: Estimate Your Implantation Window Menstrual Cycle Calculator: Predict Periods & Fertile Days Ovulation Calculator: Predict Ovulation by Cycle Length Accurate Period Calculator: Track Your Cycle and Fertility Period Tracker Calculator — Predict Periods & Ovulation Pregnancy Calculator: EDD, Weeks, Trimester & Timeline Pregnancy Test Calculator: Best Day to Take a Test HCG calculator: doubling time and beta hCG trends tracker Menopause Age Calculator: Estimate Your Menopause Timing Pregnancy Weight Calculator — Recommended Total Gain Range Conception Date Calculator: Estimate Conception from LMP Pregnancy Due Date Calculator (EDD) by LMP or Conception Accurate Cycle Length Calculator: Find Your Average Cycle Fertile Window Calculator: Find Your Most Fertile Days Now Fertility Calculator — Ovulation, Fertile Window & Dates Accurate IVF Calculator: Transfer Timeline and Key Dates Accurate IVF Due Date Calculator: 3‑Day & 5‑Day Transfer Luteal Phase Calculator: Estimate Length & Cycle Timing Accurate Menopause Calculator: Perimenopause Stage Checker Accurate Next Period Calculator: Predict Your Start Date Pregnancy Week Calculator: Track Your Week-by-Week Progress Accurate Pregnancy Weight Gain Calculator: BMI-Based Guide Trimester Calculator: First, Second, Third Trimesters

Mental Health & Sleep

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Anxiety Calculator (GAD-7): Assess Your Symptoms Now Bedtime Calculator: Find the Best Time to Go to Bed Now Depression Calculator (PHQ-9): Check Symptoms in Minutes Happiness Calculator: Satisfaction & Positivity Index Insomnia Calculator: Score Insomnia Severity (ISI Test)Jet Lag Calculator: Personal Plan for Time Zone Shifts Mental Age Calculator: Quick Quiz and Instant Results Mental Health Calculator (PHQ-4): Quick Self-Check REM Sleep Calculator: Time REM Windows & Wake-Up Times Sleep Calculator: Best Bedtimes & Wake Times by Cycle Snoring Calculator: STOP‑Bang Score & Snoring Triggers Wellness Calculator: Lifestyle Score & Goal Tracker Mindfulness Calculator: Track Mindful Minutes & Balance Wake Up Time Calculator: Best Times to Wake Up Today Meditation Timer Calculator: Custom Sessions & Streaks Nap Calculator: Plan Power Naps for Peak Energy Today Sleep Debt Calculator: Calculate Shortfall & Recovery Plan Circadian Rhythm Calculator: Align Sleep & Wake Times GAD-2 Calculator: Quick 2-Item Anxiety Screening Tool Mood Calculator: Track Daily Mood, Trends & Insights PHQ-2 Calculator: 2-Item Depression Screening Guide Screen Time Calculator: Track Daily & Weekly Device Use Sleep Apnea Risk Calculator: Quick Screening for OSA Risk Sleep Cycle Calculator: Plan Bedtime and Wake Time Sleep Efficiency Calculator: Time Asleep vs Time in Bed Sleep Score Calculator: Composite Sleep Quality Score Sobriety Calculator: Track Days Sober & Milestones Stress Calculator: Measure Your Stress Level & Get Tips

Health Monitoring & Labs

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Respiratory Rate Calculator (RR) – Breaths Per Minute Blood Sugar Calculator — Fasting and Post‑Meal Ranges Child Pugh Calculator — Liver Cirrhosis Severity Grading Temperature Converter Calculator – °C, °F, Kelvin, Rankine eGFR Calculator — CKD‑EPI Kidney Function & Staging Fever Calculator — Age-Based Thresholds & Guidance Hematocrit Calculator — Hct Percent, Ranges & Hb Rule Liver Function Calculator — AST/ALT, APRI, FIB‑4 Scoring Blood Type Calculator: ABO and Rh Inheritance Guide Kidney Function Calculator — eGFR, ACR, CKD Staging Triglyceride Calculator — TG Ranges, Conversions, Goals ANC Calculator — Absolute Neutrophil Count with Grades Creatinine Clearance Calculator — Cockcroft-Gault (CrCl)Measure BPM — Heart Rate Calculator & Pulse Calculator MELD Score Calculator — MELD‑Na, Risk & Transplant Priority A1C Calculator — Convert HbA1c to eAG with Targets AST/ALT Ratio Calculator — Liver Enzyme Interpretation Blood Pressure Calculator: Check BP Category by AHA Cholesterol Calculator — Lipid Panel Targets & Ratios Cholesterol Ratio Calculator — TC:HDL & LDL:HDL Targets Glucose Calculator — Convert mg/dL and mmol/L Values Hemoglobin Calculator — Hgb Ranges, Patterns & CBC SpO₂ Levels & Ranges — Oxygen Saturation Calculator

Risk & Prevention

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Age Calculator: Exact Years, Months and Days Online Biological Age Calculator: Assess Your Body’s Health Age Heart Disease Risk Calculator: 10-Year CVD Risk Estimate Travel Vaccine Calculator — Personalized Trip Plan UV Index Calculator: Safe Sun Time, SPF & Shade Advice Wind Chill Calculator: Frostbite Timing and Safety Steps Air Quality Calculator: AQI Levels and Health Tips Cardiac Risk Calculator: Framingham 10‑Year Risk Estimate Adult Vaccination Schedule Calculator — Expert Guide Allergen Calculator for Pollen Count & Allergy Levels ASCVD Calculator — Pooled Cohort Risk (mg/dL & mmol/L)ASCVD Risk Calculator: 10-Year Atherosclerotic CVD Risk Cancer Risk Calculator: Screening & Prevention Tips Chronological Age Calculator: Exact Age (Y‑M‑D) Results Diabetes Risk Calculator (Type 2): Prediabetes Screening Fitness Age Calculator: Assess Your Fitness Level Online Health Age Calculator: Lifestyle Risk and Health Score Health Risk Calculator: Personalized Prevention Snapshot Heat Index Calculator: Feels-Like Temperature and Safety Humidity Calculator: Relative Humidity and Dew Point Life Expectancy Calculator: Estimate Your Longevity Today Most Accurate Life Expectancy Calculator: Evidence‑Based Pollution Exposure Calculator: Daily Dose Estimate Real Age Calculator: Personalized Health Assessment Stroke Risk Calculator: CHA2DS2-VASc for Atrial Fibrillation

Clinical & Medications

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Alcohol Calculator: Drinks, Calories, Cost and BAC Dose Calculator mg/mL — Volume & Concentration Guide ETG Calculator — EtG Detection Window by Cutoff & Intake Geriatric Dose Calculator for Age and Renal Adjustments Insulin Calculator: Carb Ratio and Correction Dosing Morphine Equivalent Calculator: Daily MME Calculator Nicotine Calculator — Daily Intake & E‑Liquid Planner Pain Scale Calculator: 0–10 Numeric Rating Explained Steroid Conversion Calculator: Corticosteroid Equivalents Dosage Calculator — Per‑kg and Total Daily Dose Guide BAC Calculator — Estimate Blood Alcohol Level by Drink Adjusted Body Weight Calculator — Dosing Weight (ABW)Alcohol Units Calculator — UK Units & Weekly Limits Caffeine Calculator — Daily Intake & Half-Life Guide Corrected Calcium Calculator — Albumin Adjustment Guide Drug Half Life Calculator: Medication Elimination Time Opioid Conversion Calculator: Equianalgesic Dose Guide Pediatric Dose Calculator — Weight‑Based mg/kg Dosing Quit Smoking Calculator — Health & Savings Timeline

Children & Pets

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Baby Food Calculator — Solids Introduction & Portions Breast Milk Storage Calculator — Safety & Expiry Guide Cat Calorie Calculator: Daily Kcal and Feeding Guide Catch-Up Immunization Calculator — Next Eligible Dates Chocolate Toxicity Calculator for Pets: Dogs & Cats Dog Calorie Calculator: Daily Kcal and Feeding Guide Dog Chocolate Toxicity Calculator: mg/kg Risk and Guidance Dog Heat Cycle Calculator: Plan Fertile Window Dates Dog Weight Calculator Formula Calculator — Feeding Guide, Schedule & Safety Pumped Milk Calculator — Bottles, Feeds & Stash Plan Vaccination Schedule Calculator — Personalized Child Plan Baby Milestone Calculator — Track Skills by Age & Stage Child Growth Calculator — Percentiles by Age and Sex Child Height Percentile Calculator — CDC/WHO Growth Charts Dog Years Calculator – Convert to Human Years & Chart Growth Chart Calculator — Percentiles by Age and Sex Height Calculator — Percentiles by Age and Sex (WHO/CDC)Infant Growth Chart Calculator Baby Length Percentile Calculator — WHO Reference Guide Baby Weight Percentile Calculator — WHO Growth Guide Breastfeeding Calculator — Estimate Daily Ounces Needed Cat Age Calculator: Convert Cat Years to Human Years Child Immunization Schedule Calculator — Expert Guide Dog Age Calculator: Size‑Based Human Years Converter Dog Chocolate Calculator: Safe vs. Dangerous Amounts Dog Food Calculator: Portion Size and Feeding Planner Dog Pregnancy Calculator: Due Date and Gestation Timeline Dog Size Calculator: Adult Weight, Height, and Growth Dog Years to Human Years Calculator: Breed‑Specific Guide Growth Calculator — Child Height Percentiles & Trends Head Circumference Percentile Calculator — WHO Norms Height Percentile Calculator — WHO/CDC Growth Standards How Much Chocolate Will Kill a Dog Calculator: Lethal Dose Human Years to Dog Years Calculator: Quick Conversion Newborn Feeding Calculator — 0–12 Week Feeding Guide Pet BMI Calculator: Body Condition Score (BCS) Guide Puppy Weight Calculator — Estimate Adult Size Accurately Toddler Growth Percentile Calculator — Ages 2–5 Guide Weight Percentile Calculator — Compare by Age and Sex