Free Percent Weight Change Calculator
Calculate percent weight change for malnutrition screening. A clinical tool used by dietitians and healthcare professionals.
Weight Data
Time Period
About Percent Weight Change
Percent weight change is a clinical tool used in malnutrition screening and nutritional assessment. It compares a patient's current weight to their usual body weight to identify clinically significant unintentional weight loss.
% Weight Change = ((Usual Weight − Current Weight) / Usual Weight) × 100
This calculator is commonly used in hospitals, long-term care facilities, and clinical nutrition practice as part of the Nutrition Care Process for identifying patients at risk of malnutrition.