The Neutrophil/Lymphocyte Ratio (NLR) is an important biomarker in evaluating the body's immune response and inflammation status. To use this calculator, enter the neutrophil and lymphocyte counts (not the % values), typically obtained from a complete blood count (CBC) test. Our calculator will compute the ratio of neutrophils to lymphocytes, providing a simple yet powerful metric. This ratio is increasingly recognized for its role in predicting outcomes and severity of various diseases, including infections, cardiovascular diseases, and certain types of cancer. This tool is invaluable for healthcare professionals in assessing and monitoring patients, enhancing the understanding of a patient's immune response. It allows individuals to gain deeper insight into their immune health, supporting informed discussions with healthcare providers. Understanding the Neutrophil/Lymphocyte Ratio is a step forward in proactive health management and personalized care.