MIDAS Calculator
Score your migraine disability over the last 3 months. Used by neurologists to guide treatment decisions and required by many insurers for CGRP inhibitor approvals.
Enter your numbers above. Score updates as you type.
How the score is graded
| Score | Grade | Disability |
|---|---|---|
| 0–5 | I | Little or none |
| 6–10 | II | Mild |
| 11–20 | III | Moderate |
| 21+ | IV | Severe |
The MIDAS questionnaire is validated and self-administered — your neurologist will accept it. Bring the score and the date you filled it out to your appointment. Most insurers in the US require a documented MIDAS or HIT-6 above a threshold before approving CGRP inhibitors (Aimovig, Emgality, Ajovy, Vyepti).
For the full background on what the score means, how it's used clinically, and how to bring it to your doctor, read our guide to the MIDAS test. Most neurologists also want to see your HIT-6 score — the two scales are complementary (MIDAS = volume in days, HIT-6 = intensity per attack). For the data side, see our free migraine diary template.
Auto-calculate from your logged attacks
If you've been logging attacks in Migra, the app calculates your MIDAS automatically from your timeline and exports a one-page PDF for your neurologist. No 3-month memory required.
Disclaimer: This calculator is an educational tool. It does not provide medical advice, diagnosis, or treatment. Validated MIDAS scoring is described in Stewart et al., 2001 (Cephalalgia). If your migraines affect your daily life, see a neurologist.