ACM Transactions on Algorithms
ISSN 1549-6325 · Association for Computing Machinery · United States · active 2004–2026
Metrics
- Scimago quartile (2025)
- Q1
- Cites per paper (2y)
- 1.1
- SJR
- 0.994
- h-index
- 76
“Cites per paper” is a two-year cited-by rate computed from OpenAlex. It is not a Clarivate Journal Impact Factor — we neither compute nor license that metric (how the two differ). Citation rates differ enormously between fields, so compare within a discipline. What the other figures mean: journal quartile, SJR, h-index and article processing charge.
Data as of 18 October 2026 (venue index build).
Scimago Journal Rank 2025
In the Scimago Journal Rank 2025 edition, ACM Transactions on Algorithms is Q1 in Mathematics (miscellaneous) (#73 of 499 journals).
| Subject category | Quartile | Rank in category |
|---|---|---|
| Mathematics (miscellaneous) | Q1 | #73 of 499 |
- Cites per document (2 years, Scopus)
- 1.87
- Documents indexed in 2025 (Scopus)
- 46
OpenAlex counts about 1.1 citations per paper over two years; Scopus, through Scimago, counts 1.87 per document. The two databases index different journals, documents and citations, so the figures differ. Neither is a Clarivate Journal Impact Factor.
The quartile is the one Scimago prints for each category. Rank is the journal's position by SJR among the journals Scimago lists in that category (#1 is the highest); “—” means we hold no rank consistent with that quartile. The document count is what Scopus indexed that year, which can be lower than a journal's full output. Source: SCImago Journal Rank 2025 edition, from Scopus data (scimagojr.com, CC BY-NC).
ACM Transactions on Algorithms is Q1 in Mathematics (miscellaneous) (2025 edition, #73 of 499 journals), with SJR 0.994 (Scimago) and an h-index of 76 (OpenAlex). Listed in Scopus, Web of Science.
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Indexing & access
- Indexed in
- ScopusWeb of Science
- Access status:
- hybrid. Where this comes from publisher-level signals rather than works-level data it is a heuristic — confirm on the journal’s own site, especially regarding any article processing charge.
Scope
Frequently asked
Is ACM Transactions on Algorithms a predatory journal?
Our screening does not flag ACM Transactions on Algorithms. That is not a guarantee of quality — it means the venue is not on Beall's archive (frozen since 2017) and does not match our name-pattern heuristic. It is listed in Scopus, Web of Science, which is a positive signal.
Is ACM Transactions on Algorithms indexed in Scopus or Web of Science?
Per our venue index, ACM Transactions on Algorithms appears in: Scopus, Web of Science. Index membership changes over time — confirm on the index's own site before relying on it.
What is the impact factor of ACM Transactions on Algorithms?
Papers in ACM Transactions on Algorithms are cited about 1.1 times each within two years of publication, and Scimago places it in Q1, with an h-index of 76. Those are the open equivalents: the Clarivate Journal Impact Factor is a proprietary metric we neither compute nor license, so we show the two-year citation rate and Scimago quartile instead — they answer the same question of how heavily the journal is cited. A citation rate is a property of a field as much as of a journal.
What Scimago quartile is ACM Transactions on Algorithms (Q1, Q2, Q3, or Q4)?
In the Scimago Journal Rank 2025 edition, ACM Transactions on Algorithms is Q1 in Mathematics (miscellaneous) (#73 of 499 journals). Quartiles split the journals in a subject category into four equal groups by SJR, so Q1 is the most-cited quarter and Q4 the least; ACM Transactions on Algorithms is cited about 1.1 times per paper over two years, with an h-index of 76.
What is the Web of Science (JCR) quartile of ACM Transactions on Algorithms?
The Web of Science quartile comes from Clarivate's Journal Citation Reports (JCR), a proprietary product we neither license nor compute — so we cannot state a JCR quartile for ACM Transactions on Algorithms. The open equivalent is its Scimago quartile, Q1, derived from Scopus citation data. Because JCR ranks against Web of Science and Scimago against Scopus, the two can differ, so check Clarivate's site directly if you need the JCR quartile specifically.
Is ACM Transactions on Algorithms open access?
Our index records its access status as "hybrid". Where this is derived from publisher-level signals rather than works-level data it is a heuristic, so confirm on the journal's own site — particularly if an article processing charge matters to you.
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Compare it with its peers: Ranked Computational Theory and Mathematics journals — ranked by Scimago quartile and cites per paper, predatory venues excluded.