Sourced metrics and plain explanations for the numbers researchers get asked about most — Impact Factor, CiteScore, SJR — plus a lookup tool for where a given journal actually sits in its field.
4,000+ journals indexed · figures re-verified each JCR cycle · every number sourced
Springer Nature · Multidisciplinary Sciences
What Impact Factor, CiteScore, and SJR each measure, how they’re calculated, and where the same journal can show two different numbers.
Read the explainers →Search a specific journal’s current metrics, quartile, and indexing status — each figure dated and sourced, not scraped from a table.
Browse journals →Decision support for choosing a journal — acceptance realities, predatory-journal red flags, and open-access trade-offs.
Get decision support →Every entry is re-checked against its own source on a rolling schedule, not left to go stale between JCR releases.
Original synthesis — not a restatement of what Clarivate or Wikipedia already say.