Health Calculators Pulmonology

Peak Flow Calculator – Estimated Peak Expiratory Flow

Peak Flow Calculator – Estimated Peak Expiratory Flow

This peak flow calculator allows you to calculate your normal peak expiratory flow (PEF), as well as your peak expiratory flow ratio (PEFR). The ratio is a relation between your measured PEF and the normal value, or, if you know it – your personal best. PEFR is a valuable, useful, and easy-to-obtain parameter in asthma control and management. You can also use a peak flow chart to find your normal peak flow value. At the end of the text, you can also read a short set of instructions on how to use a peak flow meter, and obtain the proper result.

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