Peak Flow Meter Calculator UK
Calculator
Expert Guide
Introduction & Importance
Peak flow meters are essential tools for managing asthma and other lung conditions. They help monitor lung function and adjust treatment as needed.
How to Use This Calculator
- Enter your age, height, and gender.
- Press ‘Calculate’.
- Interpret your results using the provided chart.
Formula & Methodology
The calculator uses the following formula to estimate peak expiratory flow (PEF):
PEF = (Height (cm) – Age (years)) * 0.0356 * (if Male) or (Height (cm) – Age (years) – 5.3) * 0.025 * (if Female)
Real-World Examples
| Age | Height (cm) | Gender | Estimated PEF (L/min) |
|---|---|---|---|
| 30 | 175 | Male | 470 |
| 45 | 160 | Female | 320 |
Data & Statistics
| PEF Category | Percentage of Normal |
|---|---|
| Normal | 80-100% |
| Mild obstruction | 60-79% |
Expert Tips
- Use your peak flow meter regularly to monitor your lung function.
- Keep a record of your peak flow readings to track trends over time.
Interactive FAQ
What is a peak flow meter?
A peak flow meter is a small, handheld device used to measure how fast you can blow air out of your lungs.
How often should I use my peak flow meter?
Daily, especially if you have asthma or other lung conditions.