According to the official news, AHCI and ESCI journals will not be awarded a Journal Impact Factor. The reason for this is that Journal Impact Factor is only applied to the impactful and renowned journals within the sciences and social sciences
About Journal Impact Factor
The impact factor of a journal is a measure of the frequency with which the average article in that journal has been cited in a particular year. The Journal Impact Factor is used to decide the importance of a journal to its field.
Impact Factor is obtained from Journal Citation Reports (JCR) of Clarivate Analytics.
The impact factor can be calculated after completing a minimum of 3 years of publication. For that reason, Journal Impact Factor cannot be calculated for new journals. The journal with the highest Impact Factor is the one that published the most commonly cited articles over a 2-year period.
In a given year, the Impact Factor of a journal is the average number of citations received per article published in that journal during the 2 preceding years. Impact Factors are calculated each year by Thomson scientific.
Top 100 Research Journals with their Impact Factor
| Journal Title | Impact Factor |
| CA-A CANCER JOURNAL FOR CLINICIANS | 508.702 |
| NATURE REVIEWS MOLECULAR CELL BIOLOGY | 94.444 |
| NEW ENGLAND JOURNAL OF MEDICINE | 91.245 |
| NATURE REVIEWS DRUG DISCOVERY | 84.694 |
| LANCET | 79.321 |
| Nature Reviews Clinical Oncology | 66.675 |
| Nature Reviews Materials | 66.308 |
| Nature Energy | 60.858 |
| NATURE REVIEWS CANCER | 60.716 |
| NATURE REVIEWS MICROBIOLOGY | 60.633 |
| CHEMICAL REVIEWS | 60.622 |
| MMWR Surveillance Summaries | 58.769 |
| JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION | 56.272 |
| MMWR Recommendations and Reports | 55.857 |
| NATURE BIOTECHNOLOGY | 54.908 |
| CHEMICAL SOCIETY REVIEWS | 54.564 |
| REVIEWS OF MODERN PHYSICS | 54.494 |
| NATURE MEDICINE | 53.44 |
| NATURE REVIEWS GENETICS | 53.242 |
| NATURE REVIEWS IMMUNOLOGY | 53.106 |
| Nature Reviews Disease Primers | 52.329 |
| NATURE | 49.962 |
| World Psychiatry | 49.548 |
| World Psychiatry | 49.548 |
| SCIENCE | 47.728 |
| Nature Reviews Gastroenterology & Hepatology | 46.802 |
| JOURNAL OF CLINICAL ONCOLOGY | 44.544 |
| LANCET NEUROLOGY | 44.182 |
| NATURE MATERIALS | 43.841 |
| Nature Reviews Endocrinology | 43.33 |
| Nature Reviews Neurology | 42.937 |
| Nature Catalysis | 41.813 |
| CELL | 41.582 |
| LANCET ONCOLOGY | 41.316 |
| Joule | 41.248 |
| Living Reviews in Relativity | 40.429 |
| BMJ-British Medical Journal | 39.89 |
| PROGRESS IN MATERIALS SCIENCE | 39.58 |
| Cancer Discovery | 39.397 |
| Nature Nanotechnology | 39.213 |
| Nature Photonics | 38.771 |
| Energy & Environmental Science | 38.532 |
| NATURE GENETICS | 38.33 |
| Psychological Science in the Public Interest | 37.857 |
| PHYSIOLOGICAL REVIEWS | 37.312 |
| MATERIALS SCIENCE & ENGINEERING R- REPORTS | 36.214 |
| NATURE REVIEWS NEUROSCIENCE | 34.87 |
| Nature Reviews Chemistry | 34.035 |
| Nature Electronics | 33.686 |
| ANNALS OF ONCOLOGY | 32.976 |
| Nature Reviews Cardiology | 32.419 |
| Lancet Diabetes & Endocrinology | 32.069 |
| JAMA Oncology | 31.777 |
| IMMUNITY | 31.745 |
| CANCER CELL | 31.743 |
| Nature Reviews Physics | 31.068 |
| Materials Today | 31.041 |
| ADVANCED MATERIALS | 30.849 |
| Lancet Respiratory Medicine | 30.7 |
| Annual Review of Astronomy and Astrophysics | 30.065 |
| EUROPEAN HEART JOURNAL | 29.983 |
| CIRCULATION | 29.69 |
| PROGRESS IN ENERGY AND COMBUSTION SCIENCE | 29.394 |
| Advanced Energy Materials | 29.368 |
| PROGRESS IN POLYMER SCIENCE | 29.19 |
| Electrochemical Energy Reviews | 28.905 |
| NATURE CELL BIOLOGY | 28.824 |
| NATURE METHODS | 28.547 |
| Annual Review of Immunology | 28.527 |
| Nature Reviews Nephrology | 28.314 |
| Molecular Cancer | 27.401 |
| Cell Metabolism | 27.287 |
| Lancet Psychiatry | 27.083 |
| Lancet Psychiatry | 27.083 |
| Lancet Global Health | 26.763 |
| Lancet Global Health | 26.763 |
| Annual Review of Plant Biology | 26.379 |
| CLINICAL MICROBIOLOGY REVIEWS | 26.132 |
| Journal of Extracellular Vesicles | 25.841 |
| Nature Biomedical Engineering | 25.671 |
| CELL RESEARCH | 25.617 |
| NATURE IMMUNOLOGY | 25.606 |
| PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 25.6 |
| PHARMACOLOGICAL REVIEWS | 25.468 |
| InfoMat | 25.405 |
| ANNALS OF INTERNAL MEDICINE | 25.391 |
| ADVANCES IN PHYSICS | 25.375 |
| ASTRONOMY AND ASTROPHYSICS REVIEW | 25.357 |
| Nature Climate Change | 25.29 |
| Nature Climate Change | 25.29 |
| IEEE Communications Surveys and Tutorials | 25.249 |
| Wiley Interdisciplinary Reviews-Computational Molecular Science | 25.113 |
| JOURNAL OF HEPATOLOGY | 25.083 |
| LANCET INFECTIOUS DISEASES | 25.071 |
| NATURE NEUROSCIENCE | 24.884 |
| Cell Stem Cell | 24.633 |
| Lancet Digital Health | 24.519 |
| Nature Chemistry | 24.427 |
| Annual Review of Psychology | 24.137 |
| Annual Review of Psychology | 24.137 |