Ciwa Score Calculator
Alcohol withdrawal can escalate from a tremor to seizures or delirium in hours, and managing it well depends on measuring severity the same way every time. The CIWA-Ar scale does that: ten observed symptoms, each scored against written anchors, added into one number from 0 to 67 that a whole care team can act on.
Score each item below as you observe it, click Calculate, and get the total with the severity band and the standard recommendation wording for that band. The form is pre-filled with a worked example patient scoring 20, so you can see exactly how the bands behave before scoring a real assessment.
Educational scoring aid. Treatment decisions belong to the treating clinician under local protocol. Pre-filled with the worked example: a total of 20.
Quick Answer
How to score a CIWA-Ar assessment
Work through the ten items in order, scoring what you observe and what the patient reports right now, not at their worst earlier. Most items pair observation with a short question: ask about nausea, itching, sounds, and headache; observe tremor with arms extended and fingers spread, sweating, agitation, and visual sensitivity; test orientation with the date, place, person, and serial additions.
Only the anchor points carry written descriptions (0, 1, 4, and 7 on most items). The numbers between anchors, 2, 3, 5, and 6, are deliberate: they let you score a symptom that sits between two described states instead of forcing it up or down. A trained rater completes the full scale in about two minutes, which is what makes frequent repeat scoring practical.
The ten items and where the 67 points live
Nine items run 0 to 7: nausea and vomiting, tremor, paroxysmal sweats, anxiety, agitation, tactile disturbances, auditory disturbances, visual disturbances, and headache. Orientation and clouding of sensorium runs 0 to 4, because it is scored from five defined states rather than a severity gradient. Nine times 7 plus 4 gives the maximum of 67.
| Item | Range | Anchor at the top of the scale | Example score |
|---|---|---|---|
| Nausea and vomiting | 0 to 7 | Constant nausea, frequent vomiting (7) | 4 |
| Tremor | 0 to 7 | Severe, even with arms not extended (7) | 4 |
| Paroxysmal sweats | 0 to 7 | Drenching sweats (7) | 1 |
| Anxiety | 0 to 7 | Acute panic state (7) | 4 |
| Agitation | 0 to 7 | Constantly paces or thrashes (7) | 1 |
| Tactile disturbances | 0 to 7 | Continuous hallucinations (7) | 2 |
| Auditory disturbances | 0 to 7 | Continuous hallucinations (7) | 1 |
| Visual disturbances | 0 to 7 | Continuous hallucinations (7) | 1 |
| Headache, fullness in head | 0 to 7 | Extremely severe (7) | 2 |
| Orientation | 0 to 4 | Disoriented to place or person (4) | 0 |
Worked example: scoring a patient at 20
The pre-filled form describes a patient about 18 hours after the last drink. Nausea is intermittent (4). The tremor is moderate with arms extended (4). Sweating is barely perceptible (1), anxiety is moderate (4), and activity is only somewhat above normal (1). Tactile symptoms are mild itching (2), sounds are slightly harsh (1), light sensitivity is very mild (1), the headache is mild (2), and the patient is fully oriented (0). The items add to 20.
At 20 this calculator reports moderate withdrawal with medication therapy recommended, and the score sits at the top of that band: one more point anywhere pushes it into the severe band. That position is worth noticing in practice, because a rising score across repeat assessments matters as much as any single reading. Withdrawal timelines vary, but symptoms commonly build over the first day or two, which is why protocols schedule reassessment rather than trusting one score. Anyone tracking how fast the body clears alcohol between assessments can pair this with the alcohol burn-off rate calculator for the elimination side of the picture.
Reading the bands, and why sources disagree slightly
The four bands in this tool (under 8, 8 to 15, 16 to 20, above 20) follow the interpretation printed with the original protocol and used widely in hospital order sets. Other respected sources draw the lines a little differently: some use under 10 as the no-medication zone, and some collapse everything above 19 or 20 into severe. The differences are real but small, and they exist because the scale measures severity on a continuum while protocols need cut points.
Two things every source agrees on: scores in the high teens and above carry a materially higher risk of seizures and delirium tremens, and a 15 or higher has been flagged since the original literature as the zone of increased risk for severe complications. The band label should never override the trajectory, the patient's history of complicated withdrawal, or vital signs, none of which the score captures.
What competing calculators miss
The best-known competitor, MDCalc, is clinician-gated and built for charting, not for a student or family caregiver trying to understand a score. Several free clones present unlabeled dropdowns where 2, 3, 5, and 6 show as bare numbers with no hint that they are between-anchor grades, and some quietly use different band cutoffs without saying so. A few present the score as a diagnosis. This page prints the anchor wording the original scale uses, states its exact band boundaries on the page, flags where other protocols differ, and keeps the educational boundary explicit: the score supports a protocol, it does not replace one.
Medical disclaimer: This calculator is an educational aid. It does not diagnose or direct treatment. Alcohol withdrawal can be life-threatening; severe symptoms, confusion, hallucinations, seizures, or a rapidly rising score need emergency medical care, not a web form.
Frequently Asked Questions
The Clinical Institute Withdrawal Assessment for Alcohol, revised, is a 10 item bedside scale published by Sullivan and colleagues in 1989. Each item scores an alcohol withdrawal symptom, nine items run 0 to 7, orientation runs 0 to 4, and the total runs from 0 to 67. It takes about two minutes and is repeated on a schedule to track withdrawal over time.
This calculator uses four bands: under 8 is minimal withdrawal, 8 to 15 is mild to moderate, 16 to 20 is moderate, and above 20 is severe. Other published protocols draw the lines slightly differently, commonly at 8, 10, or 20, so always follow your own facility protocol for treatment decisions.
67. Nine items can each contribute up to 7 points, which is 63, and orientation adds up to 4 more. A score that high means severe symptoms across nearly every item and needs urgent clinical attention.
Because the orientation item has five defined states, from fully oriented to disoriented for place or person, and the scale's authors anchored it at 0 to 4 in the original 1989 revision. It is the one item that is tested with questions, including serial additions, rather than observed.
Protocols commonly reassess every 1 to 4 hours while symptoms are active, spacing out as scores fall, because withdrawal can climb for 24 to 72 hours after the last drink. Symptom-triggered protocols dose medication in response to each new score rather than on a fixed schedule.
No. The CIWA-Ar is one input into a clinical assessment that also covers drinking history, prior withdrawal seizures or delirium, vital signs, other conditions, and current medication. This page is an educational scoring aid for clinicians, students, and caregivers working within a protocol, not a substitute for one. If someone shows severe symptoms, confusion, hallucinations, or a seizure, seek emergency care.
The original CIWA had 15 items. The 1989 revision, CIWA-Ar, cut it to 10 items while keeping its reliability, which is why it became the standard bedside version. Nearly every calculator and protocol that says CIWA today means CIWA-Ar.
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References
- Sullivan JT, Sykora K, Schneiderman J, Naranjo CA, Sellers EM, "Assessment of alcohol withdrawal: the revised Clinical Institute Withdrawal Assessment for Alcohol scale (CIWA-Ar)", British Journal of Addiction, 1989: the original scale, its anchors, and its scoring. PubMed: Sullivan et al. 1989, CIWA-Ar. Accessed October 2026.
- Bayard M, McIntyre J, Hill KR, Woodside J, "Alcohol Withdrawal Syndrome", American Family Physician, 2004: clinical review covering CIWA-guided management in general practice. American Family Physician: Alcohol Withdrawal Syndrome. Accessed October 2026.
- American Society of Addiction Medicine, "Clinical Practice Guideline on Alcohol Withdrawal Management", 2020: the current specialty guideline for withdrawal assessment and treatment settings. ASAM: Alcohol Withdrawal Management Guideline. Accessed October 2026.
- Mirijello A et al., "Identification and Management of Alcohol Withdrawal Syndrome", Drugs / PMC review: identification of withdrawal, severity assessment, and the role of CIWA-Ar in symptom-triggered therapy. PMC: Introduction to Alcohol Withdrawal. Accessed October 2026.
- Addiction Research Center, University of Wisconsin-Madison, "Clinical Institute Withdrawal Assessment of Alcohol Scale, Revised (CIWA-Ar)": the item coding, including orientation scored 0 to 4. UW-Madison ARC: CIWA-Ar. Accessed October 2026.
- Daeppen JB et al., "Symptom-triggered vs fixed-schedule doses of benzodiazepine for alcohol withdrawal", Archives of Internal Medicine, 2002: the randomized trial showing CIWA-guided symptom-triggered dosing used less medication and shorter treatment. PubMed: Daeppen et al. 2002. Accessed October 2026.
- StatPearls, "Alcohol Withdrawal", NCBI Bookshelf: continuously updated clinical summary of withdrawal presentation, scoring, and complications. NCBI Bookshelf: Alcohol Withdrawal (StatPearls). Accessed October 2026.