General & Anthropometrics Calculators
19 calculators.
Adjusted Body Weight (Dosing Weight)Adjusted body weight = IBW + 0.4 × (actual weight − IBW), used for dosing drugs such as…Body Mass Index (BMI)BMI is weight in kilograms divided by height in metres squared. It classifies adults as…Body Surface Area (Mosteller)Body surface area by the Mosteller formula, √(height cm × weight kg ÷ 3600), used for…Charlson Comorbidity Index (CCI)The age-adjusted Charlson Comorbidity Index weights 19 conditions (1–6 points each) plus…Clinical Disease Activity Index (CDAI) for Rheumatoid ArthritisThe CDAI is the sum of 28-joint tender and swollen counts plus patient and evaluator…DAS28-CRP (Disease Activity Score, 28 joints, CRP) for Rheumatoid ArthritisDAS28-CRP combines 28-joint tender and swollen counts, CRP (mg/L) and the patient global…DAS28-ESR (Disease Activity Score, 28 joints, ESR) for Rheumatoid ArthritisDAS28-ESR combines 28-joint tender and swollen counts, ESR and the patient global health…Harris-Benedict Equation (Revised, Roza & Shizgal 1984)Revised Harris-Benedict (Roza & Shizgal 1984) estimates resting energy expenditure: men…Ideal Body Weight (Devine)Devine ideal body weight: men 50 kg + 2.3 kg per inch over 5 feet; women 45.5 kg + 2.3…Lean Body Weight (Janmahasatian)Janmahasatian lean body weight (fat-free mass): men 9270 × W ÷ (6680 + 216 × BMI); women…Mifflin-St Jeor Equation (Resting Energy Expenditure)Mifflin-St Jeor estimates resting energy expenditure: 10 × weight (kg) + 6.25 × height…Number Needed to Treat (NNT) / Harm (NNH)From the control (CER) and experimental (EER) event rates: absolute risk reduction ARR =…Pack-Years Smoking HistoryPack-years = packs smoked per day × years smoked (1 pack = 20 cigarettes). USPSTF 2021…Post-Test Probability from Likelihood Ratio (Bayes)Converts a pre-test probability to a post-test probability with a likelihood ratio:…Sensitivity, Specificity, PPV, NPV from a 2×2 TableFrom a 2×2 table of true positives (TP), false positives (FP), false negatives (FN) and…Simplified Disease Activity Index (SDAI) for Rheumatoid ArthritisThe SDAI is the sum of 28-joint tender and swollen counts, patient and evaluator global…Target Weight for a Target BMITarget weight = target BMI × height (m)². For example, a BMI of 25 at 1.75 m is 76.6 kg.…Temperature Conversion (°C ↔ °F)Converts body temperature between Celsius and Fahrenheit: °C = (°F − 32) × 5/9 and °F =…Total Body Water (Watson Formula)The Watson formula estimates total body water from sex, age, height and weight (men:…