CBI (Copenhagen Burnout Inventory): Take It, Score It, Understand Your Results
The Copenhagen Burnout Inventory (CBI) is a free, 19-item self-report questionnaire that measures burnout across three dimensions — personal, work-related, and client-related burnout — each scored on a 0–100 scale. It was developed in 2005 by Kristensen and colleagues in Denmark as an open-access alternative to the proprietary Maslach Burnout Inventory and has since been translated and validated in samples from Japan, Australia, China, Iran, Spain, and Brazil. The CBI typically takes 5–10 minutes to complete and is designed for adults aged 16 and older. Patient-facing use commonly cites scores of 50–74 as moderate burnout, 75–99 as high, and 100 as severe, but those cutoffs are clinical conventions rather than thresholds validated in the original 2005 paper, which framed the CBI as a continuous measure of exhaustion. The CBI is a self-assessment, not a diagnostic test — WHO classifies burn-out (ICD-11 QD85) as an occupational phenomenon, explicitly not as a medical condition.
What the CBI actually measures (and what it doesn’t)
The Copenhagen Burnout Inventory (CBI) measures fatigue and emotional exhaustion across three life contexts. It does not measure clinical depression, broad anxiety, or a mental disorder you can be diagnosed with. Released in 2005 by Kristensen and colleagues in Denmark as an alternative to the older Maslach Burnout Inventory, the CBI narrows burnout to “the fatigue/exhaustion continuum” rather than the wider three-part frame Maslach proposed.
The three subscales — personal, work-related, and client-related — all tap the same construct of exhaustion in different contexts (general life, paid job, and direct service to clients, patients, or students). A high score does not tell you why you are exhausted; it tells you where the exhaustion lives.
Burnout is not a medical diagnosis
This is the key framing point. The World Health Organization includes burn-out in ICD-11 (code QD85) as “an occupational phenomenon” and clearly states “it is not classified as a medical condition”. The WHO definition: “a syndrome conceptualized as resulting from chronic workplace stress that has not been successfully managed”. WHO also limits the scope: burn-out “refers specifically to phenomena in the occupational context and should not be applied to describe experiences in other areas of life”.
What the CBI is not designed to detect
A high CBI score is a flag for job-based exhaustion. It is not a screen for depression, anxiety, bipolar disorder, or suicide risk. Burnout signs overlap with depression, anxiety, and physical illness, so no single questionnaire can replace a clinician’s review when symptoms persist or worsen. If your concern is current depressive symptoms, a depression-focused tool like the PHQ-9 is a more direct measure for that question.
CBI scoring: from 0 to 100 on each subscale
The CBI uses a 5-point response scale and produces a separate 0–100 score for each of the three subscales. CBI documentation is explicit: “Possible score range for all scales is 0 to 100. Scores for each subscales are averaged, and a total averaged score is calculated”.
How the 5-point response maps to numbers
Each item uses a 5-point scale — some use frequency (“never/almost never” through “always”), others use degree (“to a very low degree” through “to a very high degree”). Both convert to the same numbers:
| Response | Numeric value |
|---|---|
| Never / almost never (or “to a very low degree”) | 0 |
| Seldom (or “to a low degree”) | 25 |
| Sometimes (or “somewhat”) | 50 |
| Often (or “to a high degree”) | 75 |
| Always (or “to a very high degree”) | 100 |
One item is reverse-scored to account for protective factors — answering “always” on that item lowers rather than raises the score.
How the subscale score is calculated
Each subscale score is the average of its items, on a 0–100 scale:
- Personal burnout — 6 items on general physical and emotional exhaustion
- Work-related burnout — 7 items on exhaustion tied to a paid job
- Client-related burnout — 6 items, answered only by people who work directly with clients, patients, or students
A total mean score is sometimes reported, but the CBI’s design favors reading each subscale on its own because the three contexts can move apart.
Interpretation thresholds (commonly used, not Kristensen-validated)
Patient-facing use most often cites: 50–74 = moderate burnout, 75–99 = high burnout, 100 = severe burnout. These cutoffs are widely used clinical norms, not thresholds the 2005 Kristensen paper validated; the original CBI was framed as a sliding-scale measure rather than a yes/no screen. Treat them as a rough guide, not as the line between “OK” and “burned out.”
The CBI shows strong internal consistency: “Cronbach’s alpha for the original 19-item CBI was 0.94 for both samples” in a study of emergency medicine residents. The Personal Burnout subscale alone shows “good internal reliability (Cronbach’s alpha score: 0.87)”.
CBI vs Maslach Burnout Inventory: which one should you use?
The CBI and the Maslach Burnout Inventory (MBI) are the two leading self-report burnout tools. The MBI (1981) “remains the most widely used measurement tool for assessing occupational burnout” and scores burnout on Maslach’s three dimensions: emotional exhaustion, depersonalization, and reduced personal accomplishment. The CBI (2005) limits the construct to “the fatigue/exhaustion continuum”.
Side-by-side comparison
| Feature | CBI (2005) | MBI (1981) |
|---|---|---|
| Developer | Kristensen and colleagues, Denmark | Christina Maslach and colleagues |
| Construct | Fatigue / exhaustion continuum | Emotional exhaustion, depersonalization, reduced personal accomplishment |
| Items | 19 items across 3 subscales | Uses the three Maslach dimensions |
| Access | Open-access; free use without email registration | Proprietary; CBI often chosen as the open-access alternative for cost reasons |
| Scoring | 0–100 on each subscale, items averaged | Dimension-specific scores per Maslach framework |
Practical reasons to pick one over the other
The CBI is a sensible choice when you want a free tool that yields a clean exhaustion score across three contexts — useful for workplace surveys, worker wellbeing research, or self-checks. It splits personal-life exhaustion from work- and client-specific exhaustion tied to a current role.
The MBI is the right tool when you need the Maslach three-part construct and your team can absorb the license cost. Research contexts often drive the choice.
How to interpret your CBI score
Your CBI result is three numbers — one per subscale — not one grand total. Read each subscale on its own; the pattern points to where the exhaustion lives.
A practical reading of the conventional thresholds
| Score band | Conventional label | What it suggests |
|---|---|---|
| 0–49 | Below moderate | Most items rated “never,” “seldom,” or “sometimes.” Exhaustion is not the main pattern. |
| 50–74 | Moderate burnout | A repeat pattern of exhaustion. Worth tracking and a chat with a clinician if it persists. |
| 75–99 | High burnout | Most items rated “often” or “always.” Recovery is unlikely without changes to workload, role, or recovery habits. |
| 100 | Severe burnout | Every item at the top of the scale. Pair with a clinician review. |
These thresholds are widely cited in patient-facing use but were not formally validated by the 2005 Kristensen paper, so treat the bands as a rough guide rather than firm cutoffs.
Reading the pattern across subscales
The three subscales can diverge in informative ways:
- High personal burnout, lower work-related — exhaustion is present but not strongly tied to the paying job. Look for drivers like caregiving load or chronic stress.
- High work-related burnout with normal personal — the job is what is draining you. This is the most fixable pattern — workplace changes can resolve it.
- High client-related burnout — direct service work has become draining, the pattern the CBI was built to surface in helping professions.
- High across all three — exhaustion has spread. Recovery usually needs changes at both the workplace and personal level.
A word on the burnout-vs-depression distinction
Exhaustion that fits into work hours and lifts on a real day off tends toward burnout; exhaustion paired with negative thoughts and feelings about all areas of life points more toward depression. Why it matters: rest helps burnout, but for depression, rest and time away “might actually make things worse”. Getting the framing right is what makes the CBI useful as a self-check.
What to do after taking the CBI
A CBI result is data, not a verdict. The most consistent message from the research is that burnout responds to changes at two levels at once — the workplace and the person — and personal changes alone rarely fix a workplace driver.
Short, immediate next steps
- Re-read your subscale pattern. Personal-only, work-only, or client-only patterns suggest different next moves.
- Note how long this has been running. If symptoms — sleep problems, weight changes, trouble focusing, or loss of interest in usual activities — have lasted for two weeks or longer, that is the usual cue to talk to a doctor.
- Save the result and re-take later — one CBI now and another later tells you more than a single snapshot.
Workplace-level changes that have the most evidence
Workplace psychologist Michael P. Leiter notes that rigid workplaces speed up burnout, while listening to staff is “the most effective mitigation”. Specific moves backed by evidence include:
- Workload balance — taking tasks off when adding new ones
- Flexibility and choice in how and when work gets done
- Listening to worker needs and adapting based on what staff report
- Expanded benefits such as time off, childcare, and tutoring services
Individual-level recovery
General self-care evidence supports about 30 minutes of daily walking, balanced food and water intake, a steady sleep schedule, and calming practices like meditation or time in nature; social ties belong in the same picture. None of these replace workplace changes when the workplace itself is the driver.
Get the differential right
The CBI does not tell burnout apart from depression, anxiety, or a physical-health driver of fatigue. A primary care provider is the standard starting point and can refer you to a mental health pro if the pattern points there. For a side view of perceived stress that the CBI does not capture, the PSS-10 is a useful companion measure.
Frequently asked questions
What is the Copenhagen Burnout Inventory?
The Copenhagen Burnout Inventory (CBI) is a 19-item self-report tool that measures burnout across three subscales — personal, work-related, and client-related — each scored 0–100. It was built by Kristensen and colleagues in Denmark in 2005 and is free to use.
How many questions are on the CBI?
The CBI has 19 items: personal burnout (6 items), work-related burnout (7 items), and client-related burnout (6 items). The client-related subscale is answered only by people who work directly with clients, patients, or students.
Is the CBI free to use?
Yes. The CBI is an open-access tool and is “available for free use without email registration”. It is called open-access in the literature and “cost-free access” in validation studies. That is one practical reason it is widely used as an alternative to paid tools.
Who developed the CBI?
The CBI was built by Kristensen and colleagues and released in 2005, built and tested in Denmark. The tool has since been translated and validated across many countries, including samples from Japan, Australia, China, Iran, Spain, and Brazil.
How is the CBI different from the Maslach Burnout Inventory (MBI)?
The MBI (1981) uses three dimensions — emotional exhaustion, depersonalization, and reduced personal accomplishment — and is paid. The CBI (2005) narrows burnout to the “fatigue/exhaustion continuum” and is open-access. CBI subscales reflect where exhaustion shows up rather than what kind of symptom is present.
How long does the CBI take to complete?
The CBI “typically requires 5–10 minutes to complete” and is built for adults aged 16 and older. The work-related and client-related subscales assume a paid job and direct client contact in turn; personal-burnout questions apply to anyone.
When to talk to your doctor
A CBI result alone is not a medical opinion, and burnout itself is not classified as a medical condition. Reaching out to a clinician makes sense in the cases below:
- Symptoms — exhaustion, sleep problems, weight changes, trouble focusing, or loss of interest in usual activities — have lasted for two weeks or more
- A high CBI score (75 or above on any subscale) that does not improve after a real break or change in workload
- Negative thoughts and feelings extend beyond work into every area of life — including ongoing low self-esteem, guilt, hopelessness, or suicidal thoughts — which suggest depression rather than burnout
- Exhaustion that does not improve with rest, or worsens after rest — rest helps burnout but may “actually make things worse” for depression, so getting the framing right matters
- Higher substance use as a coping pattern — one of the warning signs that warrants seeking help quickly
If you have thoughts of suicide or self-harm, or are in crisis, the 988 Suicide & Crisis Lifeline gives free, private support 24/7 through phone, text, or chat at 988lifeline.org. In life-threatening cases, call 911.