Journal profile · Chemical Engineering-General Chemical Engineering
ACS Omega
ISSN 2470-1343 · American Chemical Society · UNITED STATES · Weekly · Founded 2016
ACS Omega: CAS Zone 3 · Chemistry (2025 upgraded edition); impact factor 5.16; fully open access; APC about USD 1,935; median 96 days to acceptance (198 articles, last 24 months); 5,472 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
ACS Omega is published by American Chemical Society and is in Zone 3 of Chemistry in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Hydrocarbon exploration and reservoir analysis, Advanced Photocatalysis Techniques and Advanced biosensing and bioanalysis techniques, together about 18.7% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
ACS Omega publishes new peer-reviewed findings in chemistry and the interfacing sciences, including interdisciplinary studies. The editors seek content with original chemical insight, supported by sound scientific principles and robust experimental and/or computational protocols, without a requirement for wider significance. Reports of negative results that meet these expectations are welcome. ACS Omega welcomes work on topics including (but not limited to): Agriculture and food chemistry Analytical chemistry Applied chemistry Astrochemistry Chemical biology, biological chemistry and medicinal chemistry Catalysis Chemical engineering and industrial chemistry Energy Environmental and sustainable chemistry Inorganic chemistry Materials science Measurement science Nanoscience Organic chemistry Physical chemistry Polymer science Theoretical and computational chemistry
From the journal's Aims & Scope
Research area (LetPub): Chemical Engineering-General Chemical Engineering
Editor-in-chief Krishna N. GaneshPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Hydrocarbon exploration and reservoir analysisEngineering6.5%
- Advanced Photocatalysis TechniquesEnergy6.4%
- Advanced biosensing and bioanalysis techniquesBiochemistry, Genetics and Molecular Biology5.8%
- Catalytic Processes in Materials ScienceMaterials Science4.6%
- Coal Properties and UtilizationEngineering4.5%
- Enhanced Oil Recovery TechniquesEngineering4.5%
- Conducting polymers and applicationsMaterials Science4.4%
- Hydraulic Fracturing and Reservoir AnalysisEngineering4.4%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Chemistry Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Chemistry | Zone 3 |
| Minor | Chemistry, Multidisciplinary | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Chemistry Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Chemistry | Zone 2 |
| Minor | Chemistry, Multidisciplinary | Zone 2 |
Top journal: yesReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Chemistry Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Chemistry | Zone 3 |
| Minor | Chemistry, Multidisciplinary | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 5.16LetPub ·
- Impact factor (publisher)
- 5.2Publisher website ·
- CiteScore 2026-06
- 7.8LetPub ·
- CiteScore (publisher)
- 7.8Publisher website ·
- SJR 2026-06
- 0.81LetPub ·
- SNIP 2026-06
- 1.1LetPub ·
- h-index
- 177OpenAlex ·
- i10-index
- 17,405OpenAlex ·
- 2-year mean citedness
- 4.9OpenAlex ·
- Self-citation rate
- 3.8%LetPub ·
- Share of gold OA articles
- 99.94%LetPub ·
Volume
- Articles per year
- 5,280LetPub ·
Articles by year OpenAlex count · 37,504 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 4,764 | 4,764 | 2,501 |
| 2025 | 5,472 | 5,472 | 21,864 |
| 2024 | 4,487 | 4,487 | 47,782 |
| 2023 | 4,519 | 4,519 | 76,852 |
| 2022 | 4,664 | 4,664 | 93,311 |
| 2021 | 3,694 | 3,694 | 87,354 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with PubMed · to
96 daysMedian, submission to acceptance · P25–P75 70 days – 125 days
- Acceptance to online
- median 11 days (200 articles)
- Submission to online
- median 110 days
- Sample
- 198 articles with submission and acceptance dates (10,841 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 10 weeksLetPub ·
- Submission to publication (journal-reported)
- about 17 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 1,935 | Yes | CC BY, CC BY-NC-ND | |
| OpenAlex | USD 1,935 | — | — | |
| LetPub | USD 1,935 | Yes | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Profile
Publication details and official links
- Publisher
- American Chemical Society
- Country or region
- UNITED STATES
- Language
- English
- Frequency
- Weekly
- Founded
- 2016
- ISSN
- 2470-1343
- Latest issue on the website
- Volume 11, Issue 36 (September 2026)
- Official links
- Journal homepage ↗LetPub
- Submission system ↗LetPub
- Author guidelines ↗DOAJ
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗DOAJ
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about ACS Omega
What CAS zone is ACS Omega in?
In the 2025 upgraded edition of the CAS Journal Ranking, ACS Omega is in Zone 3 of Chemistry, and in Zone 3 of the minor category Chemistry, Multidisciplinary. In the 2026 Xinrui edition it is in Zone 2 of Chemistry. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of ACS Omega?
The latest impact factor listed by LetPub is 5.16; CiteScore 7.8, h-index 177.
How long does peer review take at ACS Omega?
Based on the dates recorded on 198 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 96 days (interquartile range 70–125 days); authors report an average review time of about 10 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index ACS Omega?
According to LetPub and DOAJ records, ACS Omega is indexed in SCIE, Scopus and DOAJ.
Is ACS Omega open access, and what is the APC?
ACS Omega is a fully open-access journal. APC about USD 1,935.
Sources and updates
The facts on this page come from LetPub, OpenAlex, DOAJ, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .