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Frequently Asked Questions

How do I search for a journal's impact factor?

Simply type the journal name in the search box on our homepage. Our fuzzy search will find matching journals even if you don't spell the name exactly. You can search by full journal name, abbreviation, or keywords.

What do Q1, Q2, Q3, Q4 quartiles mean?

JCR quartiles rank journals within their subject categories:

Q1: Top 25% of journals (highest impact)
Q2: 25-50% range (above average impact)
Q3: 50-75% range (below average impact)
Q4: Bottom 25% of journals (lowest impact)

What are CAS blocks (B1, B2, B3, B4)?

CAS (Chinese Academy of Sciences) blocks classify journals into different tiers. B1 represents the highest tier journals, while B4 represents lower tier journals. This classification is commonly used in Chinese academic institutions.

How often is the data updated?

Our journal impact factor database is updated annually when new JCR data becomes available, typically in the summer. We strive to provide the most current impact factor information for the current academic year.

Is Journal Metrics free to use?

Yes! Journal Metrics is completely free to use. There's no registration required, no hidden fees, and no limits on searches. Our goal is to provide accessible journal metrics for all researchers.

Can I suggest a journal to be added?

While we work to maintain a comprehensive database, if you notice a journal is missing, please contact us at admin@labcat.ai with the journal details. We'll review and consider adding it in our next update.

What if I can't find a specific journal?

Try different search terms: abbreviations, alternative names, or keywords from the journal title. If you still can't find it, the journal might not have an official impact factor, or it might be very new. Contact us for assistance.

Can I use this data for academic purposes?

Yes, you can use the information for academic and research purposes. However, for official submissions or formal documentation, we recommend verifying the data with the original JCR database or publisher information.