Calculators

Estimates calories burned while walking, based on distance, time, and weight.

Estimates calories burned during various activities based on duration, intensity, and weight.

Calculates the Charlson Comorbidity Index score, which predicts long-term mortality risk based on a patient's comorbid conditions.

Estimates the daily calories needed to maintain current weight based on the Mifflin-St Jeor equation and activity level.

Calculates Fat-Free Mass Index (FFMI), a measure of muscle mass relative to height, similar to BMI but focusing on muscularity. FFMI is a useful tool for assessing muscular development and potential.

This calculator helps assess the severity of Generalized Anxiety Disorder (GAD) using the GAD-7 questionnaire. It calculates a total score based on responses to seven questions and provides a severity interpretation.

Estimates how long it takes for half of a drug dose to be eliminated from the body.

Compares a child's weight to others of the same age and gender using growth charts.

Compares a child's height to others of the same age and gender using growth charts.

Calculates the infusion rate for intravenous fluids in mL/hour or drops/minute.