Counting Cells (COUNT, COUNTIF, COUNTIFS)

COUNT =COUNT(value1, [value2], …) Counts the number of cells in a range that contains numbers
COUNTIF =COUNTIF(range, criteria) Counts the number of cells within a range that meet the given condition
COUNTIFS =COUNTIFS(criteria_range1, criteria1, …) Counts the number of cells specified by a given set of conditions or criteria

COUNT

COUNTIF

COUNTIFS