1. COUNT
The COUNT returns the total number of cells that have numbers in the range that is specified to it as a parameter.
SYNTAX:
COUNT(value1, value2, …)
2. COUNTA
This counts the number of cells in a given range that are not empty.
SYNTAX:
COUNT(value1, [value2], …)
3. COUNTIF
This function counts the number of cells that comply with a given condition.
SYNTAX:
COUNTIF(range, criteria)
4. COUNTBLANK
This counts all the blank cells in a given range.
SYNTAX:
COUNTBLANK(range)
5. COUNTIFS
This is a special function that enables you to specify a set of conditions in order to count them.
SYNTAX:
COUNTIFS(criteria_range1,range1,[criteria_range2, criteria2], …)