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Theory of Computing Systems is Scopus-indexed (Q3, CiteScore 1.3), WoS SCIE. It is covered by India's One Nation One Subscription scheme for reading access. Published by Springer New York.
Checked against the index lists dated .
ISSN 1432-4350Verify ISSN ↗1433-0490Verify ISSN ↗
Publisher: Springer New York
Cost to publish: About US$3,190 to publish open access (publisher list price, via OpenAlex) — subscription publishing may be free
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Computational Theory and Mathematics | 149 / 203 | 26th | Q3 |
| Theoretical Computer Science | 116 / 135 | 14th | Q4 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 1996–present, best quartile Q3, CiteScore 1.3.
Theory of Computing Systems is Q3 in Computational Theory and Mathematics (rank 149 of 203) and Q4 in Theoretical Computer Science (rank 116 of 135), by CiteScore 2025.
Theory of Computing Systems is indexed in the Science Citation Index Expanded, so it may have a Journal Impact Factor in Clarivate's Journal Citation Reports. JCR is paid, so check it for the current value. The closest free measure is its Scopus CiteScore 1.3, which places it in quartile Q3 at the 26th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.295, quartile Q3, with an H-index of 52.
The publisher lists an article processing charge of about US$3,190 for open access (source: OpenAlex). Many journals also publish by the subscription route at no cost to the author, so confirm on the journal's own website.
Theory of Computing Systems is published by Springer New York. Its print ISSN is 1432-4350 and its online ISSN is 1433-0490.
Yes. It is part of the One Nation One Subscription (ONOS) national subscription, so readers at participating Indian institutions get its full text. ONOS does not cover its article processing charge.
Yes — indexed in the Science Citation Index Expanded.
No — it is not registered as an open-access journal in DOAJ or Scopus.
Theory of Computing Systems has an h-index of 89 and a 2-year mean of 1.33 citations per paper (OpenAlex). Its Scopus CiteScore is 1.3, quartile Q3. On 2-year citations it ranks #88 of 178 Scopus journals in Computational Theory and Mathematics.
Theory of Computing Systems published 40 papers in 2025; its busiest recent year was 2017 with 86. 2026* is the year so far.
h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.
In its latest 99 research articles (2024–2026), authors are most often from Japan (13%), Germany (11.3%) and United States (10.6%).
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. No retracted papers are recorded. The Problematic Paper Screener flags none of its papers. These are indicators to check, not findings against the journal.
Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.
Index data is curated from public sources (Scopus, Web of Science, ABDC, FT50, UT Dallas, DOAJ). CiteScore and quartiles reflect the latest available Scopus release. Always verify a journal's current status on its official source before submitting.
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