Health & Fitness Calculators
Health calculators for BMI, calories, fitness, and medical calculations
179 calculators available now
GLP-1 Dosage Calculator
Compare your GLP-1 dose against standard clinical titration schedules
Mounjaro Dosage Escalation
Track your Tirzepatide dose progress and next scheduled increase
GLP-1 Maintenance Dose Finder
Determine if you are a candidate for a GLP-1 dose reduction
Weight Loss Drug BMI Eligibility
Check if you meet FDA BMI requirements for GLP-1 medications
GLP-1 Side Effect Risk Calculator
Predict your risk of nausea and GI distress based on titration
GLP-1 Pregnancy Safety Calculator
Track the 60-day washout period before attempting pregnancy
GLP-1 Muscle Preservation Protocol
Calculate protein and training targets to prevent muscle loss
Semaglutide vs Tirzepatide Comparison
Project weight loss outcomes based on clinical trial data
Zepbound vs Ozempic Effectiveness
Compare probability of reaching target weight with different GLP-1s
GLP-1 Weight Regain Predictor
Predict potential weight regain after stopping GLP-1 medications
BMI Calculator
Calculate your Body Mass Index and weight category
BMI Calculator for Women
Calculate female Body Mass Index with specific context
Calorie Calculator
Calculate daily calorie needs for weight loss or gain
BMR Calculator
Calculate your Basal Metabolic Rate
TDEE Calculator
Calculate Total Daily Energy Expenditure
FFMI Calculator
Calculate your Fat-Free Mass Index
Peptide Calculator (mg for Weight Loss)
Calculate peptide dosage in mg for weight management
Progesterone Estrogen Ratio Calculator
Calculate the progesterone to estrogen ratio
Pregnancy Calculator
Calculate pregnancy due date and trimester
Ideal Weight Calculator
Calculate ideal body weight
Body Fat Calculator
Calculate body fat percentage
Water Intake Calculator
Calculate daily water needs
Protein Calculator
Calculate daily protein needs
Macro Calculator
Calculate macronutrient needs
Heart Rate Calculator
Calculate target heart rate zones
Lean Body Mass Calculator
Calculate lean body mass and fat mass
GFR Calculator
Calculate estimated glomerular filtration rate
Creatinine Clearance Calculator
Calculate creatinine clearance (CrCl)
Blood Pressure Calculator
Calculate BP category, MAP, and pulse pressure with health assessment
Ovulation Calculator
Calculate ovulation date and fertile window for conception
Waist to Hip Ratio Calculator
Compute WHR and health risk category
Navy Body Fat Calculator
U.S. Navy body fat method using neck, waist, hip, and height
One Rep Max Calculator
Estimate 1RM from submax reps (Epley, Brzycki, Lombardi)
Walking Calorie Calculator
Calories burned by weight, speed, incline, and duration
VO2 Max Calculator
Estimate VO2 max via Cooper, Rockport, or field tests
Pregnancy Due Date Calculator
Calculate EDD by LMP or conception and see trimester timeline
Biological Age Reversal Calculator
Estimate your biological age reversal through lifestyle interventions
NAD+ Dosage Calculator
Calculate optimal NAD+ precursor dosage based on age and weight
Telomere Length Age Predictor
Estimate biological age based on telomere length test results
Rapamycin Longevity Dose Calculator
Calculate Rapamycin dosing for longevity and healthspan protocols
Methylation Age Calculator
Calculate biological methylation age from blood biomarkers
Cold Plunge Duration Calculator
Calculate optimal cold plunge duration based on water temperature
Hyperbaric Oxygen Session Calculator
Plan optimal hyperbaric oxygen therapy protocols and treatment timelines
Ovulation Calculator for Irregular Periods
Calculate ovulation and fertility windows for irregular periods
Body Surface Area Calculator
Calculate BSA using DuBois, Mosteller, and other medical formulas
Running Calorie Calculator
Calculate calories burned running based on pace and distance
BAC Calculator
Calculate blood alcohol content and impairment
Army Body Fat Calculator
Calculate body fat using military tape test
BMI Category Calculator
Calculate BMI and determine weight category
Waist to Height Ratio Calculator
Calculate waist-to-height ratio and health risk
Wilks Score Calculator
Calculate Wilks coefficient for powerlifting
Medicare Calculator
Calculate Medicare premiums including IRMAA surcharges
Strength Level Calculator
Evaluate your lifting strength levels
Cycling Calorie Calculator
Calculate calories burned while cycling
Swimming Calorie Calculator
Calculate calories burned while swimming
Stair Climbing Calorie Calculator
Calculate calories burned climbing stairs
Jump Rope Calorie Calculator
Calculate calories burned jumping rope
Conception Date Calculator
Calculate conception date from due date
Implantation Calculator
Calculate implantation date and window
Gestational Age Calculator
Calculate pregnancy gestational age
Carb Calculator
Calculate daily carbohydrate needs
Keto Calculator
Calculate keto macros and meal plans
Fiber Calculator
Calculate daily fiber intake needs
Kettlebell Swing Calculator
Calculate kettlebell weight and workout plan
Resting Metabolic Rate Calculator
Calculate your RMR and calorie needs
Active Metabolic Rate Calculator
Calculate TDEE and active calorie needs
Ideal Body Weight Calculator
Calculate ideal body weight using multiple formulas
Adjusted Body Weight Calculator
Calculate adjusted body weight for medical dosing
Intermittent Fasting Calculator
Calculate fasting windows and meal timing
Medication Dosage Calculator
Calculate medication dosages based on weight
Pediatric Dosage Calculator
Calculate pediatric medication dosages
HCG Calculator
Track HCG levels and doubling time
Diaper Calculator
Calculate diaper needs and costs
Baby Sleep Calculator
Calculate baby sleep schedules
Formula Calculator
Calculate baby formula feeding amounts
Breastfeeding Calculator
Track breastfeeding schedule and intake
Meal Prep Calculator
Calculate meal prep quantities and costs
Alcohol Unit Calculator
Calculate alcohol units and standard drinks
Sugar Calculator
Track daily sugar consumption
Sodium Calculator
Calculate daily sodium intake
Recipe Nutrition Calculator
Calculate complete nutrition facts for recipes
Fetal Weight Calculator
Estimate fetal weight from ultrasound
Contraction Timer Calculator
Time and track labor contractions
IV Drip Rate Calculator
Calculate IV infusion rates
Anion Gap Calculator
Calculate serum anion gap
Apgar Score Calculator
Calculate newborn Apgar score
Bishop Score Calculator
Assess cervical readiness for labor
CHA2DS2-VASc Score Calculator
Calculate stroke risk in atrial fibrillation
Corrected Sodium Calculator
Adjust sodium for hyperglycemia
Corrected Calcium Calculator
Adjust calcium for albumin levels
Osmolality Calculator
Calculate serum osmolality
FENa Calculator
Calculate fractional excretion of sodium
APACHE Score Calculator
Calculate ICU mortality risk (APACHE II)
MELD Score Calculator
Calculate liver disease severity score
Child-Pugh Score Calculator
Assess liver cirrhosis severity
Wells Score Calculator
Calculate DVT probability
Framingham Risk Calculator
Calculate 10-year cardiovascular risk
ASCVD Risk Calculator
Calculate atherosclerotic CVD risk
Fractional Excretion Calculator
Calculate fractional excretion of substances
PERC Rule Calculator
Rule out pulmonary embolism using PERC criteria
NIH Stroke Scale Calculator
Assess stroke severity (NIHSS)
Glasgow Coma Scale Calculator
Assess level of consciousness (GCS)
Pregnancy Weight Gain Calculator
Calculate recommended weight gain during pregnancy based on BMI
Carbohydrate Calculator
Calculate daily carbohydrate intake based on goals and activity
Healthy Weight Calculator
Find your ideal weight range using multiple medical formulas
Calories Burned Calculator
Calculate calories burned during exercise and activities
Target Heart Rate Calculator
Calculate heart rate zones for optimal training
Fat Intake Calculator
Calculate optimal daily fat intake and macro balance
Body Type Calculator
Determine your body type (ectomorph, mesomorph, endomorph)
Period Calculator
Track menstrual cycle and predict next period date
Cortisol Weight Gain Calculator
Calculate cortisol impact on weight gain risk
Lean Body Mass Skinfold Calculator
Calculate lean mass using 7-site Jackson-Pollock formula
VO2 Max Improvement Calculator
Project VO2 max improvement from training
RHR Cardiovascular Age Calculator
Calculate heart age from resting heart rate
Sleep Apnea Risk Calculator
Calculate apnea risk using STOP-Bang questionnaire
Blue Zone Longevity Calculator
Calculate longevity score from lifestyle factors
Yoga vs Pilates Calorie Calculator
Compare calories burned in yoga and pilates
Muscle Recovery Time Calculator
Calculate recovery time based on workout intensity
Balance Board Stability Calculator
Predict balance board duration from age and experience
Mindful Eating Pace Calculator
Calculate eating pace impact on calorie intake
Stress Cortisol Calculator
Calculate stress-induced cortisol levels and recovery
SpO2 Altitude Calculator
Calculate blood oxygen saturation at altitude
Vitamin D Sunlight Calculator
Calculate daily sunlight exposure for vitamin D
Blue Light Filter Calculator
Calculate optimal blue light filter strength
TENS Frequency Calculator
Calculate TENS unit settings for pain management
Foam Rolling Duration Calculator
Calculate foam rolling time per muscle group
Weighted Vest Calorie Calculator
Calculate extra calories burned with weighted vest
Cigarette Calculator
Track cigarettes smoked, calculate pack-years, health risks, and financial costs of smoking
Blood Alcohol Content (BAC) Calculator
Estimate your BAC level, impairment status, and time needed to sober up
Cephalexin for Dogs Dosage Calculator
Calculate antibiotic dosage for dogs based on weight
Cat BMI Calculator
Calculate Feline Body Mass Index (FBMI) from measurements
Cephalexin for Cats Dosage Calculator
Calculate antibiotic dosage for cats based on weight
Dog BMI Calculator
Estimate canine body mass index from weight and height
Dog Chocolate Toxicity Calculator
Assess risk of theobromine poisoning after chocolate consumption
Smart Watch Sleep Cycle Accuracy Calculator
Check accuracy of your wearable sleep tracker
Metacam Dosage Calculator for Cats
Calculate Metacam dosage for cats based on weight
Omega-3 Dosage Calculator for Dogs
Calculate omega-3 fish oil dosage for dogs
Ozempic Weight Loss Timeline Calculator
Predict weight loss results on Ozempic or Wegovy
Ozempic Dosage Calculator
Track semaglutide dose escalation schedule
Semaglutide Dose Escalation Calculator
Track Wegovy/Ozempic dose progress and next steps
Macros Calculator for Weight Loss
Calculate protein, carbs, and fat targets for fat loss
Calorie Deficit Calculator
Calculate daily deficit and weekly weight loss rate
Blood Alcohol Sober Up Calculator
Estimate BAC and time until sober
GLP-1 Protein Intake Calculator
Calculate protein needs on Ozempic/Wegovy
Magnesium Dosage by Body Weight Calculator
Calculate optimal magnesium supplement dosage
Sauna Heat Stress Duration Calculator
Calculate safe sauna session duration
Daily Step Goal to Weight Loss Predictor
Calculate steps needed for weight loss
HRV Recovery Score Calculator
Calculate daily recovery readiness from HRV
Caffeine Half-life Sleep Impact Calculator
Calculate caffeine remaining at bedtime and sleep impact
Omega-3 to Omega-6 Ratio Calculator
Calculate fatty acid balance and inflammation risk
Glucose Spike Prediction (Based on Meal) Calculator
Predict blood glucose spikes based on meal composition
Vitamin D Deficiency Dosage Calculator
Calculate personalized Vitamin D supplementation dosage
Breathwork CO2 Tolerance Calculator
Calculate CO2 tolerance and breathwork benefits
Meditation Minutes to Stress Reduction Predictor
Predict stress reduction from meditation practice
Standing Desk Ergonomic Height Calculator
Calculate ideal standing desk height and monitor placement
Eye Strain (20-20-20 Rule) Timer/Calculator
Calculate 20-20-20 compliance and eye strain risk
Daily Water Intake based on Humidity & Activity
Calculate water needs adjusted for humidity and exercise
Electrolyte Balance (Sodium/Potassium) Calculator
Calculate Na:K ratio and electrolyte balance
Keto Macro Ratio for Specific Weight Goals
Calculate keto macros for weight loss, maintenance, or gain
Carnivore Diet Nutrient Gap Calculator
Calculate nutrient gaps on a carnivore (meat-only) diet
Paleo Calorie Density Calculator
Calculate Paleo meal calorie density for weight management
Vegan Protein Completion (Amino Acid) Calculator
Calculate amino acid completeness of vegan proteins
Gut Microbiome Diversity Index Calculator
Calculate gut microbiome diversity score and health risks
Biohacking Stack Synergy Calculator
Evaluate supplement and nootropic stack interactions and synergy scores
Burnout Risk Assessment Calculator
Assess burnout risk level based on emotional, physical, and mental exhaustion factors
Cat Fish Oil Calculator
Calculate fish oil dosage for cats based on weight and health condition
Circadian Rhythm Reset Timer
Calculate optimal light exposure timing to reset your circadian rhythm
Coffee Caffeine Calculator
Calculate caffeine content and safe daily limits for different coffee drinks
Compression Garment Pressure Calculator
Calculate compression garment pressure rating based on body measurements
Deep Work Focus Planner
Plan optimal deep work sessions based on energy levels and time blocks
Digital Detox Time Regained Calculator
Calculate time regained from reducing screen time and digital distractions
Dog Onion Toxicity Calculator
Assess onion toxicity risk for dogs based on amount consumed and body weight
Dog Raisin Toxicity Calculator
Assess grape and raisin toxicity risk for dogs based on amount consumed and weight
Dog Water Intake Calculator
Calculate daily water intake needs for dogs based on body weight
Dry Matter Calculator
Convert nutrient values to dry matter basis for accurate pet food comparison
Metacam Dosage Calculator
Calculate Metacam meloxicam dosage for dogs based on body weight
Nootropic Dosage Body Mass Calculator
Calculate nootropic supplement dosage based on body mass and compound type
Sleep Quality Score Calculator
Calculate sleep quality score based on duration, disturbances, and recovery metrics
Social Media Engagement Rate Calculator
Calculate social media engagement rate across Instagram, TikTok, and other platforms