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The VBA CInt function is a type conversion function that converts a given value into an integer data type. It stands for “Convert to Integer” and is useful when working with numerical data in Visual Basic for Applications (VBA) programming. The function rounds the given value to the nearest whole number and truncates any decimal values.

## VBA CInt Function – Purpose, Syntax and Arguments

### Purpose:

The CInt function is used to convert values that are in string or decimal format into whole numbers. This is necessary because VBA has strict data types and does not allow operations between different data types, such as adding a string to an integer. Therefore, the CInt function is valuable for performing mathematical operations and making comparisons with numerical data.

### Syntax:

The syntax for the CInt function is as follows:

```CInt(Value)
```

The “Value” argument is the input value that needs to be converted into an integer data type.

### Arguments:

The “Value” argument in the CInt function can be any numerical value or expression that can be converted into an integer. This can include variables, constants, and even other functions. The CInt function will automatically round the value to the nearest whole number and remove any decimal places.

• Value: This is the only required argument for the CInt function. It represents the value to be converted into an integer.

### Example:

Let’s say we have a variable named “myVar” that holds the value “12.75”. We want to convert this value into an integer so that we can use it in a calculation. We can use the CInt function as follows:

```Dim myVar As Variant
myVar = 12.75
Dim intVar As Integer
intVar = CInt(myVar)
```

The resulting value of “intVar” would be 13, as the CInt function rounded the decimal places and converted the value to an integer.

### Remarks and Important Notes:

• The CInt function can handle values that are within the range of -32,768 to 32,767. If the given value falls outside of this range, an overflow error will occur.
• If the input value cannot be interpreted as a number, the CInt function will return an error.
• The CInt function is similar to the VBA CLng (Convert to Long) function, but the CLng function can handle larger values (within the range of -2,147,483,648 to 2,147,483,647).
• When converting a decimal value, the CInt function always rounds up the last decimal place, regardless of the value. For example, 3.99 would become 4, and -3.01 would become -3.

Overall, the VBA CInt function is a useful tool for converting numerical values into integers. It is essential to keep data types in mind when working with VBA to avoid runtime errors and ensure accurate results. By understanding how to use the CInt function, you can improve the efficiency and accuracy of your VBA code.

## Understanding VBA CInt Function with Examples

### Introduction to the VBA CInt Function

Visual Basic for Applications (VBA) is a programming language used in Microsoft Office applications, such as Excel, to automate tasks and create custom solutions. One of the many useful functions in VBA is the CInt function. The CInt function is short for “Convert to Integer” and it is used to convert a value to an integer data type. In this blog post, we will explore the CInt function and its usage with examples.

### Using CInt to Convert a Numeric Value

The most basic use of the CInt function is to convert a numeric value to an integer. The syntax for using the CInt function is as follows:

```CInt(Expression)
```

The “Expression” can be any valid numerical value such as a variable or a formula. Let’s consider the following example where we have a cell that contains a numerical value, say 5, and we want to convert it into an integer using the CInt function.

```Sub ConvertToInt()
'Declare a variable to store the converted value
Dim intValue As Integer
'Convert the value in cell A1 to an integer and store it in the variable
intValue = CInt(Range("A1").Value)
'Display the converted value in cell B1
Range("B1").Value = intValue
End Sub
```

In this example, the CInt function is used to convert the value in cell A1 to an integer and store it in the variable “intValue”. The converted value is then displayed in cell B1. The CInt function takes care of rounding off and will return the nearest integer. In this case, the value 5 will be rounded off to 5.

### Using CInt to Convert a String Value

In addition to numeric values, the CInt function can also convert string values to integers. However, the string value must contain only numerical characters, otherwise, an error will be thrown. Let’s consider the following example:

```Sub ConvertToInt()
'Declare a variable to store the converted value
Dim intValue As Integer
'Convert the string value to an integer and store it in the variable
intValue = CInt("12345")
'Display the converted value in the immediate window
Debug.Print intValue
End Sub
```

In this example, the CInt function is used to convert the string value “12345” to an integer and then print it in the immediate window. The output in the immediate window will be 12345 as the string only contains numerical characters.

### Handling Errors with CInt Function

As mentioned earlier, the CInt function will throw an error if the string value contains non-numerical characters. To avoid this error, we can use error handling techniques to handle the error. Consider the following example:

```Sub ConvertToInt()
'Declare a variable to store the converted value
Dim intValue As Integer
On Error GoTo ErrorHandler
'Convert the string value to an integer and store it in the variable
intValue = CInt("123Four")
'Display the converted value in the immediate window
Debug.Print intValue
Exit Sub
ErrorHandler:
'Display an error message if the conversion is not successful
MsgBox "Invalid input, please enter a numerical value."
End Sub
```

In this example, the On Error statement is used to redirect the error to the error handler code if there is an error while converting the string value to an integer. The error handler then displays a message to inform the user about the invalid input.

### Using CInt with Mathematical Operations

The CInt function can also be used in conjunction with mathematical operators in order to perform calculations. Consider the following example:

```Sub ConvertToInt()
'Declare variables to store the converted values and perform calculations
Dim value1, value2, intValue As Integer
'Assign values to the variables
'contains 8.5
value1 = Range("A1").Value
'contains 2
value2 = Range("B1").Value
'Add the values and store the result in the intValue variable by converting it to an integer
intValue = CInt(value1 + value2)
'Print the result in the immediate window
Debug.Print intValue
End Sub
```

In this example, the CInt function is used to convert the result of the mathematical operation (8.5+2=10.5) to an integer and then print it in the immediate window. The output in the immediate window will be 10 as the decimal part is ignored when the value is converted to an integer.

### Using CInt to Convert Date and Time Values

CInt function can also be used to convert date and time values to integers. The date and time values in VBA are stored as numeric values. The integer part represents the date while the decimal part represents the time. Consider the following example:

```Sub ConvertToInt()
'Declare a variable to store the converted value
Dim intValue As Integer
'Convert the date value (18th March 2021) to an integer and store it in the variable
intValue = CInt(#3/18/2021#)
'Display the converted value in the immediate window
Debug.Print intValue
End Sub
```

In this example, the CInt function is used to convert the date value (#3/18/2021#) to an integer and print it in the immediate window. The output in the immediate window will be 86497 as this value represents the 18th day of the year 2021.

### Conclusion

In conclusion, the VBA CInt function is a useful tool in converting values to integer data type. It can handle both numeric and string values and can be used in various scenarios to perform calculations and convert date and time values. Understanding the usage of this function can greatly improve the efficiency of VBA code and make it more versatile. We hope this blog post has helped you understand the CInt function and its various applications.

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Categories: VBA FunctionsLast Updated: September 30, 2023