Peak Flow Predicted Value Calculator

This form will allow to to calculate the Normal Peak Flow Value for someone of your general physical characteristics. Please enter the appropriate values into the fields below and then click the "Compute Peak Flow" button. *

* Note that the values are the average normal values for healthy persons of a given age and height (Knudson. 1976). There will always be a range of normal values; not everyone can be expected to have exactly the same value. Men can have peak flow values as low as 100 liters/minute less than the average value shown and still fall within the normal range. Women can have peak flow values as low as 80 liters/minute less than the average value shown and still fall within the normal range.