Health Calculators
Personal health tracking and clinical indicators explained.
Serum Anion Gap & Albumin Corrected Calculator (Figge-Kellum)
Calculate standard serum Anion Gap and albumin-corrected Anion Gap for metabolic acidosis diagnosis in ICU and Emergency.
APGAR Score Newborn Calculator (1 & 5 Minutes)
Calculate newborn APGAR score at 1 and 5 minutes to rapidly evaluate physical condition after birth.
Arterial Blood Gas Interpreter & Winter's Formula Calculator
Interpret Arterial Blood Gas (pH, PaCO₂, HCO₃⁻) and calculate expected respiratory compensation via Winter's Formula in Metabolic Acidosis.
Blood Pressure & MAP Calculator (AHA / ACC Standards)
Calculate Mean Arterial Pressure (MAP), Pulse Pressure, and evaluate your blood pressure tier under AHA/ACC clinical guidelines.
HbA1c to Estimated Average Glucose Calculator (eAG - ADA Standards)
Convert Glycated Hemoglobin (HbA1c %) to Estimated Average Glucose (eAG in mg/dL & mmol/L) under ADA clinical standards.
BMI Prime Calculator (Relative Body Mass Index)
Calculate your BMI Prime ratio to evaluate the exact percentage you are above or below the upper healthy BMI limit (25.0).
Bra Size Calculator (Band & Cup Measurement)
Find your ideal bra size (Band & Cup A, B, C, D, DD) based on underbust and bust measurements in inches or cm.
CHA₂DS₂-VASc Score Calculator for Stroke Risk in Atrial Fibrillation
Calculate the CHA₂DS₂-VASc score to estimate annual stroke risk in non-valvular Atrial Fibrillation.
Child Adult Height Predictor Calculator (Tanner Mid-Parental)
Predict the target adult height your child will reach based on the Tanner mid-parental genetic height formula.
Child-Pugh Score Calculator for Liver Cirrhosis
Calculate Child-Pugh Score (Classes A, B, C) to evaluate liver cirrhosis functional severity and 1- and 2-year survival.
Sleep Chronotype Calculator (Lark, Bear, or Owl - MEQ)
Discover your natural circadian chronotype (Morning Lark, Intermediate Bear, or Evening Owl) and optimize your peak cognitive focus window.
Corrected Calcium for Albumin Calculator (Payne Formula)
Calculate actual Serum Calcium level corrected for hypoalbuminemia using the standard Payne equation.
Creatinine Clearance Calculator (Cockcroft-Gault & Ideal Weight)
Calculate Creatinine Clearance (CrCl) in mL/min using the Cockcroft-Gault formula adjusted by ideal or actual weight for drug dosing.
CURB-65 Pneumonia Severity Score Calculator
Calculate CURB-65 score to stratify Community-Acquired Pneumonia (CAP) severity and guide outpatient vs ward vs ICU management.
Pregnancy Due Date Calculator (By LMP, Ultrasound, or Conception)
Calculate your estimated delivery due date (EDD) using ultrasound (USG), last period (LMP), or conception date.
Estimated Glomerular Filtration Rate Calculator (eGFR CKD-EPI 2021)
Calculate Estimated Glomerular Filtration Rate (eGFR) using the official race-free 2021 CKD-EPI equation recommended by NKF and ASN.
Fractional Excretion of Sodium & Urea Calculator (FeNa & FeUrea)
Differentiate between Prerenal Acute Kidney Injury (Azotemia) and Acute Tubular Necrosis (ATN) calculating FeNa (%) and FeUrea (%).
Glasgow Coma Scale (GCS) Calculator
Calculate total Glasgow Coma Scale (GCS 3 to 15) using Eye, Verbal, and Motor responses for TBI and ICU patients.
HAS-BLED Score Calculator for Major Bleeding Risk in Anticoagulation
Calculate HAS-BLED score to estimate annual major bleeding risk in patients receiving anticoagulation for Atrial Fibrillation.
HEART Score Calculator for Emergency Chest Pain
Calculate the HEART Score to predict 6-week Major Adverse Cardiac Events (MACE) risk in emergency chest pain patients.
Child Height Predictor & Adult Stature Calculator
Estimate predicted adult height for a boy or girl in cm/ft using the standard Mid-Parental Height method (WHO / Tanner).
Holliday-Segar Pediatric Maintenance Fluids Calculator (4-2-1 Rule)
Calculate hourly IV infusion rate (mL/h) and 24-hour total maintenance volume for children using the Holliday-Segar 4-2-1 rule.
MELD & MELD-Na Score Calculator (Liver Transplant Priority)
Calculate MELD and MELD-Na scores to predict 90-day waitlist mortality in end-stage liver disease and prioritize UNOS liver transplant listing.
Ovulation & Fertile Window Calculator (Luteal Phase & Calendar)
Calculate your exact ovulation day, highest fertility window for conception, and next expected period date on the calendar.
PaO₂/FiO₂ Ratio (PAFI / Horovitz Index) Calculator
Calculate PaO₂/FiO₂ ratio (PAFI) to assess pulmonary oxygenation impairment and classify ARDS severity per Berlin Definition.
Pediatric BMI & Growth Percentiles Calculator (WHO & CDC)
Calculate pediatric BMI and growth percentiles for children and teens (ages 2 to 19) based on WHO and CDC standards.
Pediatric Weight-Based Medication Dosing Calculator (mg/kg & mL)
Calculate exact pediatric liquid medication dosages in mg/kg and volume in mL per dose for Paracetamol, Ibuprofen, Amoxicillin, and common drugs.
Pregnancy & Gestational Age Calculator (By LMP Date)
Calculate exact gestational age in weeks and days, estimated due date (EDD), and current trimester using your Last Menstrual Period (LMP) date.
Pregnancy Conception Calculator (By Calendar Date)
Calculate probable conception date, fertile window, and actual biological fetal age based on due date or last period.
Pregnancy Due Date & Age by Ultrasound Calculator (USG)
Calculate your estimated due date (EDD) and exact gestational age based on 1st, 2nd, or 3rd trimester ultrasound (USG) scan.
Pregnancy Weight Gain Calculator
Calculate recommended healthy pregnancy weight gain ranges based on Institute of Medicine (IOM) guidelines.
Corrected QTc Interval Calculator (Bazett & Fridericia)
Calculate corrected QT interval (QTc) using Bazett and Fridericia formulas to evaluate Torsades de Pointes arrhythmia risk.
Sleep Cycle Calculator (Bedtime & Wake-Up Times)
Calculate optimal bedtime or wake-up times based on natural 90-minute REM sleep cycles.
SOFA & qSOFA Score Calculator for Sepsis (Sepsis-3 Criteria)
Calculate total SOFA score (0 to 24) and quick SOFA (qSOFA) per Sepsis-3 criteria to evaluate organ failure severity and mortality.
Waist-to-Height Ratio Calculator (WHtR Cardiovascular Risk)
Calculate your Waist-to-Height Ratio (WHtR) and evaluate visceral fat and cardiometabolic risk using the 50% rule.
Waist-to-Hip Ratio Calculator (WHO WHR - Android vs Gynoid)
Calculate your Waist-to-Hip Ratio (WHR) and evaluate body fat distribution pattern (Android/Apple vs Gynoid/Pear) under WHO guidelines.
Daily Water Intake Calculator (EFSA & NASEM Standards)
Calculate daily recommended water intake in liters and cups based on weight, sex, workout minutes, and climate.
Wells Score Calculator for DVT and Pulmonary Embolism (PE)
Calculate Wells Score for clinical pretest probability of Pulmonary Embolism (PE) and Deep Vein Thrombosis (DVT) in Emergency.