IF by specialty › Respiratory System
Thorax — Impact Factor
The 2025 Impact Factor of Thorax is 9.1 (Q1 in Respiratory System; subscription or hybrid).
- Impact Factor
- 9.1 JCR 2025
- JCR category
- Respiratory System
- Quartile
- Q1 in Respiratory System
- Publisher
- BMJ (British Thoracic Society)
- Open access
- subscription or hybrid
- IF source
- thorax.bmj.com
Position within the field
Ranked 7 of the 36 journals in Respiratory System on this site (top 25%).
Respiratory System journals with a similar Impact Factor
- European Respiratory Review IF 10.4
- Chest IF 9.8
- Archivos de Bronconeumología IF 8.7
- Chinese Medical Journal Pulmonary and Critical Care Medicine IF 7.9
- The Journal of Heart and Lung Transplantation IF 6.7
- Respirology IF 6.6
About this value
The Journal Impact Factor of Thorax (JCR 2025, released June 2026) is 9.1. Values are compiled by cross-checking figures published by publishers and societies against public aggregators; this is not a reproduction of Clarivate Journal Citation Reports™. Confirm the current value on the publisher's page or in JCR before deciding where to submit. The quartile (Q1–Q4) is the journal's relative position within its JCR category; Q1 means the top 25%.
Last updated September 2026. Report errors via the contact form. Other journals in the same category: Respiratory System.