# How sum, average and count function works

Chapter 1: Count and Sum Functions in Excel 10/29/2019

## Chapter 1: Count and Sum Functions in Excel

10/29/2019

The most used functions in Excel are the functions that count and sum. You can count and sum based on one criteria or multiple criteria.

Count

To count the number of cells that contain numbers, use the COUNT function.

Countif

To count cells based on one criteria (for example, greater than 9), use the following COUNTIF function.

Countifs

To count cells based on multiple criteria (for example, green and greater than 9), use the following COUNTIFS function.

Sum

To sum a range of cells, use the SUM function.

Sumif

To sum cells based on one criteria (for example, greater than 9), use the following SUMIF function (two arguments).

To sum cells based on one criteria (for example, green), use the following SUMIF function (three arguments, last argument is the range to sum).

Sumifs

To sum cells based on multiple criteria (for example, circle and red), use the following SUMIFS function (first argument is the range to sum).

General note: in a similar way, you can use the AVERAGEIF and AVERAGEIFS function to average cells based on one or multiple criteria.

Source: Excel Easy

More:

Chapter 2: IF Function