The same 5-question test neurologists use to determine treatment eligibility for Botox and CGRP therapies. Calculate your Grade I–IV score instantly — no signup required.
The MIDAS (Migraine Disability Assessment) is a clinically validated questionnaire developed by Dr. Richard Lipton and Dr. Walter Stewart. It measures productivity lost to migraine over the past 90 days across three domains: work or school, household chores, and social or family activities.
Neurologists rely on MIDAS scores to decide between treatment tiers. A Grade IV score (21+) is often the clinical threshold for prescribing preventive therapies such as OnabotulinumtoxinA (Botox) or CGRP monoclonal antibodies (Aimovig, Emgality, Ajovy).
Many patients underestimate their migraine burden when speaking with doctors. A calculated MIDAS score gives objective evidence that can unlock access to newer, more effective treatments. The Relief iOS app tracks MIDAS over time and generates PDF reports to bring to your neurologist.
How many days in the last 3 months did you miss work or school because of your headaches?
How many days was your productivity at work or school reduced by half or more?
How many days did you not do household work (chores, errands, cooking)?
How many days was your household productivity reduced by half or more?
How many days did you miss family, social, or leisure activities?
Track your MIDAS score over time and generate a PDF report for your neurologist:
Download Relief — FreeSupplemental (not scored): The standard MIDAS also asks about headache frequency and average intensity (0–10). These give context but do not affect the score. The Relief app captures them automatically from your logs.
Grade I (0–5 points) indicates migraines cause little or no disruption to daily life. Most neurologists recommend lifestyle changes and acute rescue medication at this level.
Grade II (6–10 points) suggests mild disability. Your doctor may consider a daily preventive medication if attacks are frequent or severe despite the lower score.
Grade III (11–20 points) reflects moderate disability. A combination of preventive and acute therapies is typically recommended, alongside trigger management.
Grade IV (21+ points) indicates severe disability. This score often qualifies patients for advanced treatments including Botox, CGRP monoclonal antibodies (Aimovig, Emgality, Ajovy), or CGRP receptor antagonists (Nurtec, Ubrelvy).
Neurologists recommend reassessing your MIDAS score every 3 months to track treatment effectiveness. A falling score suggests your plan is working. A rising score signals the need for adjustment.
Many patients struggle to convey the true impact of migraines in a short appointment. A MIDAS score provides quantified evidence of disability that helps your neurologist make faster, more accurate decisions.
Important: This calculator is an educational tool, not a medical diagnosis. The MIDAS questionnaire is a validated research instrument, but only a qualified clinician can diagnose and treat migraine. Always discuss your results with a doctor.
The MIDAS (Migraine Disability Assessment) is a validated 5-question questionnaire measuring how many days of work, school, household, and social activity you lost to migraine over the past 3 months. The total determines a Grade from I (little or no disability) to IV (severe disability). Neurologists use it to decide treatment intensity.
Generally a MIDAS score of 21 or higher (Grade IV, severe disability) combined with 15 or more headache days per month is a clinical indicator for advanced preventive treatments such as OnabotulinumtoxinA (Botox) or CGRP inhibitors like Aimovig and Nurtec. Your neurologist will weigh MIDAS alongside other criteria.
You answer 5 questions about days impacted by headache in the last 3 months: missed work or school, reduced productivity at work or school, missed household work, reduced household productivity, and missed social or family activities. The sum of those five numbers is your MIDAS score.
Yes. This MIDAS calculator is completely free, requires no signup, and stores nothing. Your answers are calculated in your browser and never sent to a server.
Relief lets you retake MIDAS every 3 months, track trends, and export PDF reports for your neurologist — free.
Download FreeRelief for iOS