0–2
Quartile 1
Evidence-based COPD assessment
BODE Index Calculatorfor COPD
Calculate the original 0–10 BODE score from BMI, post-bronchodilator FEV₁ percent predicted, mMRC dyspnea grade, and measured six-minute walk distance—with every point shown and the interpretation kept clinically bounded.
Automatic BMITransparent 0–10 score2026 evidence review
Educational clinical decision support. Use for adults with clinician-diagnosed COPD when all four inputs are available from valid clinical assessment. Do not use during an acute exacerbation or as a standalone prognosis, diagnosis, or treatment directive.
Four-domain COPD index
Calculate the original BODE score
Use clinically measured post-bronchodilator spirometry and six-minute walk distance. Every component and point assignment remains visible.
B · Body mass
Calculate BMI
Calculated BMI: —·BODE threshold: ≤21
O + E · Obstruction and exercise capacity
Enter measured clinical results
Six-minute walk distanceUse a standardized, supervised 6MWT result.
meters
D · Dyspnea
Select the mMRC grade
Choose the best description of usual breathlessness while clinically stable.
Calculated locally in your browserNo patient data uploadedEvery point assignment displayed
Original Celli model
BODE Index scoring table
Points are assigned independently, then summed. BMI contributes at most one point; each other domain contributes zero through three points.
| Component | 0 points | 1 point | 2 points | 3 points |
|---|---|---|---|---|
| Post-BD FEV₁, % predicted | ≥65 | 50–64 | 36–49 | ≤35 |
| Six-minute walk distance | ≥350 m | 250–349 m | 150–249 m | ≤149 m |
| mMRC dyspnea grade | 0–1 | 2 | 3 | 4 |
| BMI | >21 kg/m² | ≤21 kg/m² | — | — |
3–4
Quartile 2
5–6
Quartile 3
7–10
Quartile 4
What the score adds
A multidimensional view beyond FEV₁
The original investigators selected one measure of pulmonary impairment, one measure of perceived breathlessness, and two measures reflecting systemic consequences. In the validation cohort, BODE discriminated mortality risk better than FEV₁ alone. The score is most useful as a compact summary of several clinically meaningful domains—not as a substitute for the complete COPD picture.
Calculate GLI spirometry reference valuesPrognostic boundaries matter
Higher BODE values were associated with greater cohort-level risk, but a score does not determine an individual patient’s survival. NICE advises against using a multidimensional index such as BODE alone to assess prognosis in stable COPD. Current assessment should incorporate exacerbations, symptoms, comorbidities, frailty, gas exchange, trajectory, and patient priorities.
Input quality
The score is only as reliable as its measurements
BMI
Use measured standing height and weight. The original threshold is ≤21 kg/m²—not <21.
Post-BD FEV₁
Use post-bronchodilator FEV₁ percent predicted from an acceptable spirometry session.
mMRC
Grade usual stable-state activity limitation rather than transient breathlessness during an exacerbation.
6MWT
Use measured distance from a standardized, supervised test and document oxygen, aids, stops, and protocol.
Frequently asked questions
BODE score calculation and interpretation
What does BODE stand for in COPD?
BODE stands for body mass index, airflow obstruction, dyspnea, and exercise capacity. The four domains are represented by BMI, post-bronchodilator FEV₁ percent predicted, mMRC breathlessness grade, and six-minute walk distance.
What is a normal BODE score?
BODE is not a normal-versus-abnormal diagnostic test. It ranges from 0 to 10, with higher values reflecting greater multidimensional impairment and greater outcome risk in the original COPD cohorts. Scores were grouped as 0–2, 3–4, 5–6, and 7–10 for analysis.
Which FEV₁ result should I enter?
Enter the post-bronchodilator FEV₁ as percent predicted from a valid clinical spirometry report. Do not enter liters, pre-bronchodilator FEV₁, FEV₁/FVC, or a z-score. The selected reference equation can affect percent predicted and therefore the score near a threshold.
Can I estimate six-minute walk distance instead of testing it?
No. The original index uses measured distance from a standardized six-minute walk test. Hallway length, instructions, encouragement, oxygen, assistive devices, learning effects, and stopping can change the result and should be documented consistently.
Can the BODE Index tell a patient how long they will live?
No. The BODE Index stratified risk across research cohorts; it is not a precise individual life-expectancy calculator. It does not include every comorbidity, exacerbation, frailty measure, gas-exchange abnormality, treatment response, or longitudinal change.
Should BODE determine COPD treatment?
No. BODE does not select inhalers, oxygen, pulmonary rehabilitation, procedures, or transplant referral by itself. Current COPD management incorporates symptoms, exacerbations, spirometry, eosinophils when relevant, comorbidities, functional status, smoking exposure, imaging, gas exchange, patient goals, and response to treatment.
Is BODE still used in current COPD practice?
It remains a recognized multidimensional outcome index and appears in advanced-disease discussions, but recommendations differ on its prognostic use. NICE specifically advises against using a multidimensional index such as BODE to assess prognosis in stable COPD. PulmTools therefore presents it as contextual decision support rather than a standalone prognosis.
Evidence base
Primary study and current guidance
Evidence and links reviewed August 16, 2026. The calculator implements the original BODE point thresholds without substituting other exercise tests or simplified indices.
Celli et al. — The Body-Mass Index, Airflow Obstruction, Dyspnea, and Exercise Capacity Index in COPDOriginal NEJM development and prospective validation study defining the four variables, point thresholds, 0–10 score, and outcome relationship.Global Initiative for Chronic Obstructive Lung Disease — 2026 GOLD ReportCurrent global COPD assessment and management framework, including the role and limits of multidimensional prognostic measures and advanced-disease referral context.American Thoracic Society — Guidelines for the Six-Minute Walk TestOfficial procedural guidance for the standardized six-minute walk test used by the exercise-capacity component.NICE NG115 — Chronic obstructive pulmonary disease in over 16sGuideline caution against using a multidimensional index such as BODE by itself to assess prognosis in stable COPD.
Connect function, exposure, and COPD context
BODE begins with established COPD and measured function. Use the GLI spirometry calculator for transparent predicted values and z-scores, or calculate cigarette exposure with the pack-year and LDCT eligibility calculator.
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