Journal metrics

Journal Impact Factor (JIF): Calculates the average number of citations received by articles published in a particular journal. Can be used as an indicator of the impact or prestige of a particular journal.

Journal rankings: calculates the impact of journals in relation to other journals in the same field.

Sources:

InCites - Journal Citation Reports
The Journal Citation Reports module within InCites allows you to evaluate and compare journals using citation data drawn from scholarly and technical journals and conference proceedings from thousands of publishers in over 60 countries. Journal Citation Reports is the only source of citation data on journals, and includes virtually all specialties in the areas of science, technology, and social sciences.

SciMago Journal and Country Rank
Journals ranked by subject area and subject categories.