Popular Journal Searches
Nature impact factor 2025
Science journal ranking
Cell journal impact factor
Lancet impact factor
NEJM journal ranking
What You'll Find
2025 Impact Factor scores
JCR Quartile rankings (Q1-Q4)
CAS Block classifications
ISSN numbers
Journal rankings and metrics
How to Search
1
Enter Journal Name
Type the journal name or partial name in the search box
2
View Results
Browse through matching journals with their metrics
3
Find Impact Factor
Check the 2025 impact factor and JCR quartile
Understanding Journal Metrics
Impact Factor
The Impact Factor measures the yearly average number of citations to recent articles published in a journal. Higher impact factors generally indicate more influential journals.
Example: An impact factor of 3.5 means articles published in the journal receive an average of 3.5 citations per year.
JCR Quartiles
JCR Quartiles rank journals within their subject categories:
Q1
Top 25%
Q2
25-50%
Q3
50-75%
Q4
Bottom 25%
CAS Blocks
CAS (Chinese Academy of Sciences) blocks classify journals into different tiers based on their quality and influence in the Chinese academic system.
Search Tips
- •Use partial journal names for broader results (e.g., "nature" instead of "Nature Communications")
- •Search is case-insensitive and supports fuzzy matching
- •Try different variations if you don't find your journal immediately
- •All impact factors shown are for the year 2025
Learn More
Understanding Impact Factor Calculations
Want to understand how journal impact factors are calculated? Read our comprehensive guide.
How Journal Impact Factors Are Calculated →