Health Metrics
Calculate your waist-to-hip ratio (WHR) with instant risk classification based on WHO guidance. Includes measurement tips, formula, glossary, worked example, and FAQs.
Full original guide (expanded)
Health Metrics
Browse calculators and resources in this section.
Latest update: 2026-01-26
Calculators
qSOFA (Quick SOFA) Score Calculator
Calculate the qSOFA score to assess the risk of sepsis in patients.
Creatinine Clearance Calculator (Cockcroft-Gault) | Health and Fitness
Calculate your creatinine clearance using the Cockcroft-Gault formula. Accurate and easy-to-use tool for medical professionals and patients.
Body Surface Area (BSA) Calculator
Professional, mobile-first BSA calculator with metric and imperial units. Supports Mosteller, Du Bois & Du Bois, Haycock, Gehan & George, and Boyd formulas. WCAG 2.1 AA accessible.
Pediatric Dosage Calculator (by BSA)
Calculate pediatric dosages based on Body Surface Area (BSA) with this precise and accessible tool.
Winter-Blythe Formula Calculator (Acid-Base)
Calculate metabolic acidosis compensation using Winter
Body Mass Index (BMI) Prime Calculator
Calculate your BMI Prime to assess your body weight relative to your height. Use our advanced tool designed for health and fitness enthusiasts.
Wet Bulb Globe Temperature (WBGT) Calculator
Calculate the Wet Bulb Globe Temperature (WBGT) with our advanced, interactive tool. Essential for understanding heat stress in various environments.
Opioid Conversion Calculator
Use our advanced Opioid Conversion Calculator to accurately convert opioid dosages, ensuring safe and effective pain management.
BMR (Basal Metabolic Rate) Calculator | CalcDomain
Professional BMR calculator to estimate your Basal Metabolic Rate and daily calorie needs (TDEE) using Mifflin–St Jeor, Harris–Benedict, or Katch–McArdle formulas. Accurate, accessible, and mobile-first.
IV Drip Rate Calculator
Calculate accurate IV drip rates with our interactive tool, designed for medical professionals ensuring precise dosage delivery.
PELD (Pediatric End-Stage Liver Disease) Score Calculator
Calculate the PELD score for pediatric patients with liver disease under 12 years old.
Wells' Criteria for DVT and PE Calculator
Calculate the probability of deep vein thrombosis (DVT) and pulmonary embolism (PE) using the Wells
Number Needed to Treat (NNT) Calculator
Calculate the Number Needed to Treat (NNT) easily with our precise online tool. Ideal for health professionals to assess the effectiveness of healthcare interventions.
Oxygenation Index (OI) Calculator
Calculate the Oxygenation Index (OI) using our interactive tool designed for healthcare professionals.
Bishop Score Calculator
An authoritative Bishop Score Calculator for assessing the readiness of the cervix for labor. Developed by Ugo Candido.
Cat Chocolate Toxicity Calculator
Determine the potential toxicity of chocolate consumption in cats with our easy-to-use calculator.
Bilirubin Calculator for Newborns
Calculate bilirubin levels in newborns with our precise and accessible interactive tool.
Statin Intensity Calculator
An authoritative tool to calculate statin intensity for medical professionals, ensuring accuracy and ease of use.
Ranson's Criteria Calculator
Calculate the Ranson
Calcium Correction for Albumin Calculator
Calculate corrected calcium levels for hypoalbuminemia accurately with our authoritative medical calculator.
Ovulation Calculator | CalcDomain
Professional ovulation calculator: predict your ovulation day, fertile window, next period, and best test dates. Built on clinical methodology with accessible, mobile-first design.
Pregnancy Calculator – Due Date, Gestational Age & Milestones
Professional pregnancy calculator that estimates due date (EDD), current gestational age, and trimester milestones using LMP, conception/IVF, or ultrasound dating. WCAG 2.1 AA accessible.
Life Table Calculator
An advanced interactive life table calculator designed for life and earth sciences. Calculate life expectancy with precision.
Target Heart Rate Calculator
Calculate your target heart rate for optimal exercise efficiency. This tool assists in determining the safe and effective heart rate zones for physical activity.
Waist to Hip Ratio Calculator — WHR, Risk Category & Guidance
Calculate your waist-to-hip ratio (WHR) with instant risk classification based on WHO guidance. Includes measurement tips, formula, glossary, worked example, and FAQs.