Proceedings of the National Academy of Sciences of the United States of America (often abbreviated PNAS or PNAS USA) is a peer-reviewed multidisciplinary scientific journal. It is the official journal of the National Academy of Sciences, published since 1915, and publishes original research, scientific reviews, commentaries, and letters. According to Journal Citation Reports, the journal has a 2021 impact factor of 12.779. PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008 to 2018. In the mass media, PNAS has been described variously as "prestigious", "sedate", "renowned" and "high impact". More information...

According to PR-model, is ranked 1,293rd in multilingual Wikipedia, in particular this website is ranked 471st in Spanish Wikipedia.

The website is placed before and after in the BestRef global ranking of the most important sources of Wikipedia.

PR-model F-model AR-model
1,293rd place
1,146th place
1,223rd place
471st place
660th place
660th place
3,794th place
4,415th place
3,505th place
571st place
860th place
702nd place
405th place
547th place
495th place
678th place
851st place
740th place
1,250th place
915th place
1,234th place
763rd place
850th place
855th place
866th place
799th place
815th place
701st place
920th place
876th place
205th place
373rd place
396th place
985th place
814th place
881st place
445th place
653rd place
651st place
849th place
1,433rd place
1,241st place
255th place
418th place
254th place
572nd place
788th place
569th place
539th place
778th place
949th place
391st place
471st place
534th place
1,064th place
714th place
995th place
1,779th place
1,008th place
1,407th place
682nd place
685th place
524th place
739th place
1,025th place
991st place
571st place
709th place
835th place
619th place
764th place
632nd place
827th place
1,091st place
1,012th place
86th place
875th place
435th place