GAD-7 Calculator: Anxiety Screening Questionnaire

Use the GAD-7 Calculator: Anxiety Screening Questionnaire

Free GAD-7 calculator: score all seven anxiety items, grade severity from minimal to severe, see both screening cut points, and track change over time.

How to Use GAD-7 Calculator: Anxiety Screening Questionnaire

1. Step 1: Rate the seven symptoms

   For each of the seven questions, choose how often the problem bothered you over the last two weeks: Not at all (0), Several days (1), More than half the days (2), or Nearly every day (3).

2. Step 2: Answer the difficulty question

   Select how difficult these problems have made work, home life, or getting along with people. Item 8 is never added to the 0-21 total, but impairment is part of every anxiety diagnosis.

3. Step 3: Read your score and severity band

   Your total appears instantly with its band - minimal (0-4), mild (5-9), moderate (10-14), or severe (15-21) - alongside the recommended clinical action for that range.

4. Step 4: Check both screening cut points

   The results panel shows whether you cross 8, the broader threshold covering panic, social anxiety and PTSD, and 10, the classic generalized anxiety threshold with 89% sensitivity.

5. Step 5: Compare with a previous score

   Enter an earlier GAD-7 total in the tracking box to see the point change, whether it clears the 4-point minimal important difference, and if it counts as a 50% treatment response.

6. Step 6: Copy your summary

   Use Copy summary to save a dated, item-by-item record you can bring to an appointment, including your GAD-2 subscore and the worry versus tension breakdown.

Key Features

• All seven official GAD-7 items with 0-3 scoring
• Four severity bands with recommended clinical actions
• Embedded GAD-2 subscore from items 1 and 2
• Both screening cut points (8 and 10) with sensitivity data
• Worry vs. tension item breakdown to spot medical mimics
• Change tracker using the 4-point minimal important difference

Understanding Results

How the GAD-7 Calculator Scores Your Answers

The total is a plain sum of seven items, each rated 0 (not at all) to 3 (nearly every day) over the last two weeks, giving a 0–21 score with no weighting and no reverse-scored item. Two extras come out of the same answers: items 1 and 2 alone form the GAD-2 (0–6, cut point 3), and the seven items split into a worry group (1, 2, 3, 7) and a tension group (4, 5, 6) — a descriptive breakdown rather than a validated subscale, since the GAD-7 scores as a single dimension. The eighth question about functional difficulty is part of the official form but is never added to the total.

Reference Ranges & Interpretation

Severity bands from the original validation study (Spitzer et al., 2006): 0–4 minimal, 5–9 mild, 10–14 moderate, 15–21 severe. A score of 10 or higher detects generalized anxiety disorder with roughly 89% sensitivity and 82% specificity. A lower cut point of 8 is used when screening the broader anxiety group — at that threshold the same items reach 68% sensitivity for panic disorder, 72% for social anxiety, and 66% for PTSD (Kroenke et al., 2007). For context, the general-population mean is about 3 points, and only around 5% of adults score 10 or above. During treatment, a 4-point change is the minimal important difference, a 50% reduction counts as response, and a total below 5 counts as remission.

Assumptions & Limitations

The GAD-7 is a screening and monitoring instrument, not a diagnosis. Its symptoms overlap with hyperthyroidism, caffeine above roughly 400 mg a day, stimulant medication, akathisia, and alcohol or benzodiazepine withdrawal, so a tension-heavy score deserves a medical workup alongside the mental health evaluation. It is close to blind to obsessive-compulsive disorder, specific phobias, and health anxiety, and it contains no self-harm question at all — a low score says nothing about safety. The two-week window also means one difficult fortnight can produce a moderate score in someone with no anxiety disorder, which a repeat test in 2–4 weeks usually resolves.

Complete Guide: GAD-7 Calculator: Anxiety Screening Questionnaire

Type your answers into a GAD-7 calculator and the number that comes back means very little until you know that the average adult scores about 3 out of 21. That figure comes from a German general-population study of 5,030 people, and it reframes everything: a 7 isn’t “a bit anxious,” it’s more than double the population norm. Only about 5% of adults score 10 or higher. This guide covers how the seven items are scored, why the published cut point moves between 8 and 10 depending on which disorder is being screened for, and how much your score has to move before the change means anything.

Seven Questions, 0 to 21, Two Weeks

The GAD-7 asks how often, over the last two weeks, you’ve been bothered by seven problems: feeling nervous or on edge, being unable to stop worrying, worrying about too many things, trouble relaxing, restlessness, irritability, and a sense that something awful might happen. Each answer is worth 0 (not at all), 1 (several days), 2 (more than half the days), or 3 (nearly every day). Add the seven and you get 0–21. GAD-7 scoring is deliberately plain — there’s no weighting, no reverse-scored item, and no adjustment for age or sex, which is exactly why it can be done in a waiting room in under two minutes.

Four GAD-7 severity levels split that range: 0–4 minimal, 5–9 mild, 10–14 moderate, and 15–21 severe. The official form carries an eighth question — how difficult the problems have made work, home life, or getting along with people — that is deliberately not added to the total. It exists because severity and impairment are different things. Someone scoring 16 who still works, sleeps, and socializes is in a different clinical position from someone scoring 11 who has stopped driving.

The instrument was built by Spitzer and colleagues in 2006 across 15 primary care sites and 2,740 patients. Its internal consistency is high (Cronbach’s α = 0.92) and its test-retest agreement is strong (ICC = 0.83), which is why it survived as the default anxiety measure in primary care rather than one of the dozens of longer anxiety inventories.

A Worked Example: How a 13 Adds Up

Take a 34-year-old who has been sleeping badly since a reorganization at work. Her answers:

A 13 sits in the moderate band and clears the cut point of 10. But look at where the points came from: items 1, 2, 3, and 7 — the worry items — contributed 9 of the 13, while the restlessness and irritability items contributed 4. That’s a worry-dominant profile, and it points toward classic generalized anxiety rather than the physical-arousal picture you tend to see with panic, stimulant use, or thyroid disease. Her GAD-2 subscore (items 1 and 2 alone) is 5 out of 6, already positive at the cut point of 3.

Now change one answer. Drop item 2 from “nearly every day” to “several days” and the total falls to 11 — same severity band, same clinical recommendation. That’s the practical reason single-point differences shouldn’t be over-read, and why the change threshold discussed below is 4 points rather than 1.

Why Some Studies Cut at 8 and Others at 10

The original 2006 paper set the threshold at 10 or higher, where the GAD-7 detects generalized anxiety disorder with roughly 89% sensitivity and 82% specificity. That’s the number most calculators quote, and for GAD alone it’s the right one. The trouble is that generalized anxiety is not the only thing the questionnaire picks up.

A follow-up study of 965 primary care patients tested the same seven items against four separate anxiety diagnoses using a lower cut point of 8. Sensitivity and specificity at that threshold:

This is the part that gets left off most GAD-7 pages, and it changes how you should read a borderline result. A score of 8 or 9 is technically “mild” and below the classic threshold, yet it’s exactly the range where panic disorder, social anxiety, and PTSD start showing up. If you land there, the useful next step isn’t to dismiss it — it’s to ask whether the anxiety comes in sudden attacks, appears mainly around other people, or traces back to a specific event. The GAD-7 can tell you something is there. It cannot tell you which of the four it is.

Sensitivity and specificity move in opposite directions as you slide the threshold. Screening a low-risk workplace population at 8 will generate a lot of false positives; screening a psychiatric referral clinic at 10 will miss people. Neither number is “correct” in isolation — it depends on how common anxiety is in the group being tested and what a missed case costs.

GAD-7, GAD-2, or PHQ-4?

The first two GAD-7 items are not merely similar to the GAD-2 anxiety screener — they arethe GAD-2. Scored 0–6 with a cut point of 3, it’s the 20-second triage version, which is why this calculator reports it as a subscore alongside your full total. The two can disagree: worry concentrated entirely in items 1 and 2 produces a positive GAD-2 with a GAD-7 total under 8.

In practice the GAD-7 is rarely administered alone. Around half of people with an anxiety disorder also meet criteria for depression, so most primary care workflows pair it with the PHQ-9 depression calculator in the same visit. If your score is elevated but the trigger is clearly situational — a deadline, a move, a bad quarter — the stress level calculator may describe the picture better than an anxiety-disorder screener.

The Four Points That Decide Whether Treatment Worked

A single GAD-7 score is a snapshot. The instrument earns its keep on the second and third administration, and there are three numbers worth memorizing. A change of about 4 points is the minimal important difference — move less than that and you’re probably looking at measurement noise, a bad week, or the fact that you filled it in at 11pm instead of on a Sunday morning. A 50% reduction from baseline is the conventional definition of treatment response. A score below 5 is remission.

Applied to the worked example: our 34-year-old starting at 13 would need to reach 9 or lower for the change to count as real, 6 or lower to count as a treatment response, and 4 or lower to be in remission. That’s a far more useful target than “feeling better.” SSRIs typically need 4 to 6 weeks before that kind of movement shows up, so re-testing after one week mostly produces discouraging noise. Every 2 to 4 weeks during active treatment is the usual cadence.

What a High Score Might Not Be

The GAD-7 measures symptoms, not causes, and several non-psychiatric conditions produce the exact seven symptoms it asks about. Hyperthyroidism is the classic one: an overactive thyroid causes restlessness, irritability, poor sleep, and a racing sense of dread, which is why a TSH test is a reasonable part of the workup for new-onset anxiety after age 40. Caffeine intake above roughly 400 mg a day — about four cups of brewed coffee — reliably inflates items 4, 5, and 6.

Others worth ruling out: alcohol or benzodiazepine withdrawal, which peaks 24–72 hours after the last dose; akathisia from antipsychotics or some antiemetics, which is often mistaken for restlessness; stimulant medication for ADHD at too high a dose; and paroxysmal arrhythmias, where the palpitation comes first and the fear follows it. A tension-heavy score with minimal worry content deserves more medical curiosity than a worry-heavy one, which is why this calculator breaks the total into those two groups.

What the GAD-7 Never Asks About

Three anxiety-spectrum problems are essentially invisible to these seven items. Obsessive-compulsive disorder involves intrusive thoughts and compulsive rituals that don’t map onto generalized worry, and someone with significant OCD can score in the mild band. Specific phobias produce almost no symptoms during the two weeks between exposures — a person terrified of flying who hasn’t flown recently will score near zero. Health anxiety often shows up as repeated medical testing rather than as the diffuse worry item 3 describes.

There is also no self-harm question anywhere in the GAD-7. The PHQ-9 has item 9 for that; the GAD-7 has no equivalent, so a low anxiety score says nothing whatsoever about safety. And the two-week window cuts both ways: it makes the instrument responsive to treatment, but it means a rough fortnight can produce a moderate score in someone with no anxiety disorder at all. That is exactly the situation a repeat test in 2–4 weeks resolves. If your score is elevated and staying elevated, or if item 8 says the symptoms are making work or relationships very difficult, that’s the point to bring the printout to a clinician rather than re-testing again.

References

1. Spitzer RL, Kroenke K, Williams JBW, Löwe B. A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of Internal Medicine. 2006;166(10):1092–1097. View study
2. Kroenke K, Spitzer RL, Williams JBW, Monahan PO, Löwe B. Anxiety disorders in primary care: prevalence, impairment, comorbidity, and detection. Annals of Internal Medicine. 2007;146(5):317–325. View study
3. Löwe B, Decker O, Müller S, et al. Validation and standardization of the Generalized Anxiety Disorder Screener (GAD-7) in the general population. Medical Care. 2008;46(3):266–274.
4. National Institute of Mental Health. Anxiety Disorders. nimh.nih.gov

Frequently Asked Questions