In this tutorial, we will explore more about the sum function of excel which we provide examples and explanations on how it works.

**What is the sum function in Excel?**

The sum function formula of excel is used to add the numerical values in a range of cells. The value that can be supplied in functions either in cells, references, or range of cells. So this function is used in a situation when it is required to total selected cells.

In addition, this function SUM can handle up to 255 individual arguments.

**The Syntax of the SUM Excel Function**

The syntax of the sum is shown below:

**=SUM(number1, [number2], [number], …)**

**Arguments **

This function accepts the arguments as follows:

*number1*– The first value to sum.*number2*– [optional] The second value to sum.*number3*– [optional] The third value to sum.

**How to Use Sum Function in Excel**

Time needed: 5 minutes

Primarily, to use the sum function you just need to type (=SUM) followed by the arguments. However, we provide you here the alternative steps on how to use the sum function of excel.

**In the Formulas tab, click the “math & trig” option, as shown in the following image.****From the drop-down menu that opens, select the SUM option.****In the “function arguments” dialog box, enter the arguments of the SUM function. Click “Ok” to get the output.****Here’s the output.**

**Excel SUM Formula Examples**

Here we will give a few examples to understand how to use it in different ways, thus we will provide figures to answer clarification.

### Example 1

In this example, we will use Autosum button which is the quickest and easiest way to sum up a range of cells. Once it is used Excel sum function automatically enters on selected cells. As defined above it totals one or more numbers in a range of cells.

The first example, below, shows how to use the AutoSum feature.

Steps | Figures |

1. First, select a blank cell you want sum below the cells of the row. | |

2. On the Home Tab Click the Autosum button or Alt+= on your keyboard. | |

3. Then in your active cell A SUM formula will appear, with a reference to the cells above. In our figure, the formula in C5 is (=SUM(C2:C4).Note: You can extend the frame if your cells are not included. | |

4. Click Enter Key then the result will display. |

### Example 2

Normally, the SUM function is often used in bigger and more complex calculations. So let’s assume here the given data.

The illustration above shows a piece of missing information in a worksheet; now let’s use the sum function with IF function to display a warning message.

Here is the formula we used.

We get the result below:

## Excel SUMIF Formula

The SUMIF function of excel calculates the sum value of the range of cells with true or false conditions.

The syntax of this function is * SUMIF(range, criteria, [sum_range])*.

### SUMIF Two Required Arguments

**range**– cells to check for the criteria**criteria**– value to use as criteria

### SUMIF Optional Arguments

- [
**sum_range**] – cells to sum if omitted, values in**range**are summed - These arguments can be cell references or can be typed into the formula.

**Example Excel SUMIF Formula**

In this example, we will know how to calculate using SUMIF and meet a specific criterion or multiple criteria. Consider the following given data in Excel table to calculate each income.

- Select the cell in which you want to see the total
- Input an equal sign (=) to start the formula
- Type: SUMIF(
- Select the cells that contain the values to check for the criterion.
- Type a comma, to separate the arguments
- Select or type the criterion.
- Type a comma, to separate the arguments
- Select the cells that contain the values to sum.
- The completed formula is:

*=SUMIF(A2:A10,C2,B2:B10)* - Press the Enter key to complete the entry

Note: Instead of typing the criterion in a formula, you can refer to a cell. For example, the formula in step 9 above could be changed to:=SUMIF(A2:A10, C3, B2:B10)

**Excel Sum Formula Shortcut**

Suppose we have values in more than one column, so how can we add this numerical value?

Here’s how…

- First, you must select all the columns you want to add.
- Then, Press “Alt+=”.

Now it has already applied the formula to the last cell selected. Note do not press the ENTER KEY instead pressing CTRL+ENTER to apply the formula on the same selected cell.

Hence the result is presented below after using the shortcut keys.

**Horizontal Auto Sum in Excel**

This time we also have a horizontal Autosum shortcut way. As we’ve seen how to apply it is a vertical set of data it is more likely the same as how it is done.

- First, Select the cell you want to be total, for instance B2 to C10.
- Then Press the excel Sum shortcut, Alt+=.

As we can see, it has applied the Excel SUM formula shortcut to the beside cell of the selected cells.

**Summary**

In summary SumFunction of Microsoft excel helps the summation easier; it also considers adding a numerical set of data with a condition considering the possibility when doing tasks or financial reports specifically.

Thank you for reading!