If you frequently work with large sets of data in Excel, you may have encountered the issue of dealing with blank cells when performing calculations. The presence of blank cells in a formula can often cause errors or affect the accuracy of your results. To avoid this problem, it’s important to know how to **ignore blank cells in a formula** in Excel.

This post will guide you how to **ignore blank cells in a formula** in Excel. How do I ignore blank cells when performing calculations in a formula in Excel.

Table of Contents

## 1. Ignore Blank Cells in a Formula Using IF Function

If you have a formula to calculate a range of cells, and you want to ignore the blank cells. And you can use the **IF function**, the **ISNUMBER function**, the **AND **or **OR function** to achieve the result.

For example, you want to add 1 to all cells in range **D2:D7**, and if you directly use the formula **=D2+1**, and the blank cells also will be added **1**. So if you want to ignore all blank cells in this formula, you need to use IF function to check if it is a blank cell, if TRUE, then ignore it. Otherwise, apply this formula. Just use the following formula:

`=IF(D2<>"",D2+1, "")`

## 2. Ignore Blank Cells Using ISNUMBER and IF Functions

You can also use the** IF function** in combination with the **ISNUMBER function** to achieve the same result. Like this:

`=IF(ISNUMBER(D2),D2+1, "")`

## 3. Video: Ignore Blank Cells in a Formula

This video will demonstrate how to ignore blank cells in a formula in Excel, allowing you to perform calculations without affecting the accuracy of your results.

## 4. Related Functions

- Excel ISNUMBER function

The Excel ISNUMBER function returns TRUE if the value in a cell is a numeric value, otherwise it will return FALSE.The syntax of the ISNUMBER function is as below:= ISNUMBER (value)… - Excel IF function

The Excel IF function perform a logical test to return one value if the condition is TRUE and return another value if the condition is FALSE.The syntax of the IF function is as below:= IF (condition, [true_value], [false_value])…

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