640 South State StreetDover, Delaware 19901
21 West Clarke AvenueMilford, Delaware 19963
401 North Carter RoadSmyrna, DE 19977
640 S. State StreetDover DE 1990121 West Clarke AvenueMilford DE 19963
301 Jefferson AveMilford, DE 19963
1275 S. State StreetDover, Delaware 19901
You need to know your child's personal best peak flow number to help control your child's asthma. Changes from
child's personal best can help you see how well your child's asthma is under control. These changes also can let
know when your child needs medication and when your child needs medical care.
If you don't know how to find it, click here for an
Note: The minimum height for this calculator is 44 inches.
Each person's asthma is different, and each person's personal best peak flow number is different.
Children's peak flow numbers typically vary by height, but even among people of the same height, weight
and sex, peak flow numbers can differ.
Here's how to determine your child's personal best peak flow number:
Talk with your child's doctor before measuring your child's personal best peak flow number. He or she
other instructions or suggestions, based on your child's condition.
Once you know your child's personal best peak flow number, you can use this calculator or ask your
to help determine the values for your child's Green, Yellow and Red Zones.
Close this section
Since your child's height is , his or her estimated peak flow meter value is .
How much your child's daily peak flow differs from his or her personal best is
described as being in the Green, Yellow, or Red Zone. Here is a breakdown of each zone.
This calculator is not intended to replace the evaluation of a health care professional.
Bayhealth is Southern Delaware’s healthcare leader with hospitals in Dover and in Milford. Bayhealth provides a wide range of medical services, including cardiovascular, cancer, orthopaedics and rehabilitation, pediatrics, respiratory care, sleep care, surgical weight loss and women’s services.