In this article, we will explore the idea to evaluate a string as a formula in **Microsoft Excel**. The necessity of this feature is discussed, especially in situations when dynamic computations and automation are necessary. This can be done in a number of ways, including by utilizing** VBA** custom functions and the **Excel Name Manager **feature, which is described in detail throughout the article. It shows how to evaluate formula strings in **Excel **with step-by-step demonstrations and code excerpts. It also covers typical problems, solutions, and restrictions related to evaluating strings as formulas in Excel. The article’s overall goal is to offer users who want to evaluate formulas in** Excel** utilizing string inputs some useful practical advice.

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**Table of Contents**Expand

**What Does String as a Formula Mean?**

In **Excel**, “**string as formula**” refers to treating a string of characters as a formula expression. **Excel** typically interprets a cell’s contents as either a value or a text string. **Excel** can, however, assess and determine the outcome of a legitimate formula when a string that represents it is entered in a certain format.

Consider the string “**=SUM(A1:A5)**” as an example. When you type this string into a cell, Excel will recognize it as a formula expression and add the values in cells **A1 **through **A5** for you.

In situations when you wish to construct or modify formulas on the fly based on particular criteria or inputs, strings can be useful as formulas. It enables you to develop and assess things programmatically.

**Excel Evaluate String as Formula: 2 Easy Ways**

In this segment, we will briefly discuss the stepwise and handy ways to evaluate string as formula in **Excel**. In both methods, we will use** VBA **to do the tricks. Without further delay, let’s hover over the methods. We used a dataset numeric value as **Text Format** in **Text1 **and **Text2 **columns and made a **Formula Text **column with them. **Open VBA window & Insert New Module** first. Follow the link if you don’t know the way already.

**1. Creating User Defined Function to Evaluate String as Formula in Excel**

In the first method, we will simply use **the VBA Evalute function **to do the task. We will create a user-defined function to combine with the **VBA Evaluate function **to do the task. Let’s follow the simple steps.

- Firstly, prepare a dataset. you can follow our one.
- Then, open the
**VBA**window and insert a new module and insert the following code in the module. - No need to run the code but you can reset it.

**Code:**

```
Function EvaluateFormula(formula As String) As Variant
On Error Resume Next
EvaluateFormula = Evaluate(formula)
If Err.Number <> 0 Then
EvaluateFormula = "Error: " & Err.Description
End If
On Error GoTo 0
End Function
```

**Code Breakdown:**

- The function
**EvaluateFormula**takes a formula parameter, which is the formula**string**to be evaluated. **On Error Resume Next**is used to bypass any runtime errors that may occur during formula evaluation.**EvaluateFormula = Evaluate(formula)**evaluates the formula string using the**Evaluate**function in**Excel**. It assigns the evaluated result to the**EvaluateFormula****If Err.Number <> 0 Then**check if any error occurred during formula evaluation.**EvaluateFormula = “Error: ” & Err.Description**assigns an error message to the**EvaluateFormula**variable if an error occurred. The error description is retrieved using**Description**.**On Error GoTo 0**resets the error handling to its default behavior.

- Finally, use the following formula to have the formula result from the formula in text format. We used the
**VBA**custom function.

`=EvaluateFormula(D5)`

- Of course, you can use the
**Fill Handle**to copy the formula in the following cells.

**2. Creating User Defined Function with VBA Mid Function to Evaluate String as Formula in Excel**

This time, the code is similar except that we used **the VBA Mid function** in the code. Let’s see the simplest procedures.

- Firstly, prepare a dataset. you can follow our one.
- Then, open the
**VBA**window and insert a new module and insert the following code in the module. - No need to run the code but you can reset it.

**Code:**

```
Function EVALUATE_FORMULA(formulaString As String) As Variant
Dim formula As String
formula = Mid(formulaString, 2, Len(formulaString) - 2) _
' Remove the leading and trailing "="
On Error Resume Next
EVALUATE_FORMULA = Evaluate(formula)
If Err.Number <> 0 Then
EVALUATE_FORMULA = "Error: " & Err.Description
End If
On Error GoTo 0
End Function
```

**Code Breakdown:**

- The function
**EVALUATE_FORMULA**takes a**formulaString**parameter, which is the formula string to be evaluated. - Dim
**formula**As**String**declares a variable named formula to store the modified formula string. **formula = Mid(formulaString, 2, Len(formulaString) – 2)**extracts the formula string without the leading and trailing “**=**” characters using the**Mid****On Error Resume Next**is used to bypass any runtime errors that may occur during formula evaluation.**EVALUATE_FORMULA = Evaluate(formula)**evaluates the modified formula string using the Evaluate function in Excel. It assigns the evaluated result to the**EVALUATE_FORMULA****If Err.Number <> 0 Then**check if any error occurred during formula evaluation.**EVALUATE_FORMULA = “Error: ” & Err.Description**assigns an error message to the**EVALUATE_FORMULA**variable if an error occurred. The error description is retrieved using**Description**.**On Error GoTo 0**resets the error handling to its default behavior.

- Finally, use the custom function. Insert the following formula in a cell.
- Also, hit
**Enter**.

`=EVALUATE_FORMULA(D5)`

- As a result, the formula result value from the string formatted formula is displayed in the cell.
- Of course, you can use the
**Fill Handle**to copy.

**Frequently Asked Questions**

**Do I need to use VBA or custom functions to evaluate a text as a formula in Excel?**

**Ans:** Yes, using **VBA** or **Custom Function** is often necessary to evaluate a string as a formula in **Excel**. There isn’t a built-in function in **Excel** that can evaluate a formula string directly.

**What does it mean to evaluate a string in an Excel formula?**

**Ans: **String evaluation as a formula enables automated and dynamic calculations. It is especially helpful when you want to create or alter formulas based on specific requirements or inputs.

**Things to Remember**

- Don’t forget to save the workbook as a
**.xlsm**file after inserting any**VBA** - Be careful about the absolute and normal cell references.

**Conclusion**

In conclusion, **VBA** or custom functions can be used to evaluate a string as a formula in **Excel**. Although there isn’t a built-in function in **Excel,** the **Name Manage **feature can be used to evaluate strings as formulas. Overall, the article offers helpful tips and advice to users who want to evaluate formulas in **Excel **using string inputs. Feel free to comment if you have any queries or suggestions.