Last Updated on September 3, 2026 by Dr. Bhagat
National Academy Science Letters’s 2025 Journal Impact Factor is 1.1, reported for the 2026 Journal Citation Reports cycle. This page separates the current JIF from other citation metrics and combines the verified figure with historical context, indexing, publishing information and practical author guidance.
2026 data update
Journal Impact Factor year: 2025 · JCR release year: 2026 · Current status: 1.1 · Quartile: Category-dependent; verify the exact current JCR row
National Academy Science Letters metrics at a glance
| Metric | Current value |
|---|---|
| 2025 Journal Impact Factor | 1.1 |
| 5-year Journal Impact Factor | 1.1 |
| JCR category | Multidisciplinary Sciences |
| Quartile | Category-dependent; verify the exact current JCR row |
| Indexing | Web of Science and Scopus |
| Publisher | The National Academy of Sciences, India with Springer Nature |
| Publishing model | Hybrid journal |
| Additional current metric | Median submission to first decision 7 days; 121.1k downloads in 2025 |
Primary source: the journal’s official publisher page. Operational details and fees can change, so authors should recheck the live publisher instructions before submission.
About National Academy Science Letters
National Academy Science Letters publishes short communications and research across the natural sciences, engineering, technology and interdisciplinary scientific fields. Its audience, article types and editorial threshold should be considered alongside the citation metric.
Journal-level metrics summarize citation behavior across a publication. They do not predict the quality, citation count or practical value of an individual article.
What is National Academy Science Letters’s current Impact Factor?
National Academy Science Letters’s 2025 Journal Impact Factor is 1.1, reported for the 2026 Journal Citation Reports cycle. The metric year and release year are different: a 2025 JIF is released in the 2026 reporting cycle.
Why the 2025 JIF appears in JCR 2026
Journal Citation Reports names the metric for the citation year and publishes it in the following year. “2025 Journal Impact Factor” and “2026 JCR release” therefore describe the same reporting cycle.
Quartile and indexing status
The current category context is Multidisciplinary Sciences. The quartile is Category-dependent; verify the exact current JCR row, and the verified indexing summary is Web of Science and Scopus. Quartiles are category-specific, so a journal can have different quartiles in different categories.
National Academy Science Letters Impact Factor trend, 2017–2025
| Impact Factor year | Journal Impact Factor | Year-on-year change |
|---|---|---|
| 2017 | 0.519 | — |
| 2018 | 0.331 | -36.2% |
| 2019 | 0.416 | +25.7% |
| 2020 | 0.788 | +89.4% |
| 2021 | 0.649 | -17.6% |
| 2022 | 1.1 | +69.5% |
| 2023 | 1.2 | +9.1% |
| 2024 | 1.3 | +8.3% |
| 2025 | 1.1 | -15.4% |
Changes in a JIF can reflect citation timing, publication volume and subject-wide citation patterns. A one-year rise or fall should not be treated as direct evidence that editorial quality changed.
How to interpret the trend
Use the historical series as context, not as a forecast. Compare the journal with titles in the same subject category and inspect the articles it currently publishes. For multidisciplinary journals, compare the category that best matches the manuscript.
Scope and suitable manuscripts
A suitable manuscript should make a clear contribution to short communications and research across the natural sciences, engineering, technology and interdisciplinary scientific fields. Authors should compare their abstract, methods and main conclusion with recent papers before investing in journal-specific formatting.
Publishing model and possible charges
Hybrid journal. Any current article processing charge, taxes, waiver eligibility, color charge or optional service should be confirmed on the official publisher page. Do not rely on an old fee copied by a directory.
Editorial process and timing
Median submission to first decision 7 days; 121.1k downloads in 2025. A publisher-reported median is not a promise for an individual manuscript. Timing varies with editor assignment, reviewer availability, revisions, article type and author response time.
Submission checklist
- Confirm that the article type and scope match the current author instructions.
- Use the journal’s required structure, reference style and reporting checklist.
- Prepare ethics, conflict-of-interest, funding, data and code statements where applicable.
- Check every figure, table, supplementary file and author detail before upload.
- Verify the current fee, waiver rules and indexing status on first-party pages.
- Write a concise cover letter explaining the journal-specific contribution.
Important journal-specific note
This is a broad academy journal. A manuscript should be evaluated for scientific fit and article type rather than selected only because of its multidisciplinary label.
What the Impact Factor cannot tell you
The JIF does not measure novelty, methodological rigor, research integrity, reproducibility or fit for a particular audience. It is an average at journal level and can be influenced by a small number of highly cited articles.
Frequently asked questions
What is the latest Impact Factor?
The current status reported on this page is 1.1. Cite it with the metric year and release year, and note the special status where the publisher does not report a verified 2025 JIF.
Is the journal indexed?
The verified summary is Web of Science and Scopus. Because database coverage can change, check the exact journal title and ISSN in the database before a deadline.
Is it open access?
Hybrid journal. Consult the publisher for the licence, fee and waiver that would apply to a specific submission.
Does the metric guarantee that my paper is suitable?
No. Scope, article type, methods, evidence and readership are more useful for deciding where to submit.
Where should authors verify changes?
Use the official journal home page, author guide, fee page and the relevant indexing database rather than an unsourced directory.
Sources and further reading
- Official National Academy Science Letters publisher page
- Clarivate Journal Citation Reports overview
- Clarivate Master Journal List
Editorial note: JIF, CiteScore and SJR are different metrics with different sources and citation windows. They should not be substituted for one another.
