Asthma Control Test (ACT)

Assess asthma control using the validated 5-item ACT questionnaire. Each item scored 1-5 (daytime symptoms, activity limitation, nocturnal waking, rescue inhaler use, overall control self-rating). Total 5-25: >= 20 = well controlled; 16-19 = not well controlled; <= 15 = very poorly controlled.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Assess asthma control using the validated 5-item ACT questionnaire. Each item scored 1-5 (daytime symptoms, activity limitation, nocturnal waking, rescue inhaler use, overall control self-rating). Total 5-25: >= 20 = well controlled; 16-19 = not well controlled; <= 15 = very poorly controlled

Each component has a specific meaning:

  • Validated 5-item ACT questionnaire — The validated 5-item act questionnaire recorded for the scenario being assessed.

Note: Interpret the act score result against the thresholds and context described above.

How to Use

Enter the validated 5-item ACT questionnaire for the scenario you are assessing. Assess asthma control using the validated 5-item ACT questionnaire. Each item scored 1-5 (daytime symptoms, activity limitation, nocturnal waking, rescue inhaler use, overall control self-rating). Total 5-25: >= 20 = well controlled; 16-19 = not well controlled; <= 15 = very poorly controlled. Use the act score result to inform your calculation.

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Frequently Asked Questions