Interactive calculators for laboratory quality control, common formulas, and unit conversions.
Educational use only. These calculators do not provide medical advice, diagnosis, or treatment. Verify methods and results against appropriate references and qualified professional judgment.
Calculate Body Mass Index (BMI) from height and weight. BMI is a screening measure and is not a direct measure of body fat.
Calculates the total surface area of the human body (Mosteller formula).
Average arterial blood pressure during a single cardiac cycle.
Coefficient of Variation expresses the SD as a percentage of the Mean.
Calculate a laboratory Sigma metric from total allowable error (TEa), bias, and coefficient of variation (CV).
Estimates GFR using serum creatinine, age, and weight.
Calculates LDL cholesterol from Total Cholesterol, HDL, and Triglycerides.
Measures the difference between primary measured cations and anions in serum.
Standardized system for assessing the level of consciousness.
Predicts mortality in community-acquired pneumonia.
Calculates the percentage difference between the observed mean and the peer group mean.
Converts Glucose values between mg/dL and mmol/L.
Corrects serum calcium level for patients with hypoalbuminemia.
Estimates serum sodium in the presence of hyperglycemia.
Calculates stroke risk for patients with atrial fibrillation.
Clinical prediction rule for estimating the probability of Deep Vein Thrombosis.
Estimates GFR using the MDRD equation, which includes a race adjustment. Follow current clinical guidance when interpreting results.
Predicts major bleeding risk in patients on anticoagulation for atrial fibrillation.
Predicts survival for patients with end-stage liver disease.
Additional clinical scores, imaging formulas, and laboratory calculators may be added in future updates.