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Calcimator

Asthma Action Plan Calculator

Zone-based action plan from peak flow and symptoms.

Inputs

Results

Current Zone (0=Green, 1=Yellow, 2=Red)

0

% of Personal Best84%
Green Zone Min PEF (L/min)400
Yellow Zone Min PEF (L/min)250
Control Score (5-25)21
Control Level (0=Well, 1=Not Well, 2=Poor)0
Recommended NAEPP Step (1-6)1
How to Use This Calculator
  1. Enter your personal best PEF (L/min) established during a well period.
  2. Enter today's current PEF (L/min) and rate daytime symptom days/week, night awakenings/week, and rescue inhaler days/week.
  3. The calculator determines your zone: Green (>=80% personal best), Yellow (50-79%), or Red (<50%).
  4. Review zone-specific action steps and medication guidance based on your current zone.
  5. Track daily PEF readings over time to identify worsening trends before a full exacerbation.
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