How to Add Digits to a Number in Excel

The sample dataset contains 2 columns, Customer Name and Customer ID.

Method 1 – Using the Ampersand(&) Operator to Add Digits to a Number in Excel

1.1. Adding Digits in Front of a Number in Excel

Steps:

Select a cell to keep the changes. Here, D5.
Enter this formula.

="10"&C5

Formula Breakdown

In the formula, “10”will be added to the number, using the Ampersand (&) operator.

Press ENTER to see the result.

Drag the Fill Handle to AutoFill the rest of the cells D6:D10.

This is the output.

1.2. Adding Digits at the End of a Number in Excel

Steps:

Select a cell to keep the changes. Here, D5.
Enter this formula.

=C5&"10"

Formula Breakdown

In the formula, “10”will be added to the number, using the Ampersand (&) operator.

Press ENTER to see the result.

Double-click the Fill Handle to AutoFill the range D6:D10.

This is the output.

Method 2 – Using the CONCATENATE Function

Steps:

Digits will be added at the end of the number.

Select a result cell such as D5.
Enter this formula.

=CONCATENATE(C5,"10")

Press ENTER to see the result.

Formula Breakdown

The CONCATENATE function will join several texts into one.
- The Inverted Comma (“10”) declares 10 as the string.
- So, CONCATENATE will join 161201 and 10.
  - Output: 16120110

Double-click the Fill Handle to AutoFill the range D6:D10.

This is the output.

You can also add digits by using the CONCATENATE function.

Select D15.
Enter this formula.

=CONCATENATE("10",C15)

Press ENTER to see the result.

Formula Breakdown

The CONCATENATE function will join all text to one.
The Inverted Comma (“10”) declares 10 as a string.
So, CONCATENATE will join 10 and 161201.
- Output: 10161201

Drag the Fill Handle to AutoFill the range D16:D20.

Digits were added in front of the number.

Method 3 – Applying the NUMBERVALUE Function and the Ampersand(&) Operator

Steps:

Select the result cell D5.
Enter this formula.

=NUMBERVALUE(C5&"10")

Press ENTER to see the result.

Formula Breakdown

The NUMBERVALUE function will convert any text to a number format.
- C5 will be the text.
- The Inverted Comma (“10”) declares 10 is a string.
- The Ampersand (&) will join 161201 and 10.
- NUMBERVALUE will convert those strings to the number.
  - Output: 16120110

Double-click the Fill Handle to AutoFill the range D6:D10.

This is the output.

You can also add digits in front of a number in Excel by using the NUMBERVALUE function.

Select the result cell D5.
Enter this formula.

=NUMBERVALUE("10"&C5)

Press ENTER to see the result.

Formula Breakdown

The NUMBERVALUE function will convert text to a number format.
- The Inverted Comma (“10”) declares that 10 is a string.
- Ampersand (&) will join 161201 and 10.
- NUMBERVALUE will convert those strings to the number.
  - Output: 10161201

Double-click the Fill Handle to AutoFill the range D16:D20.

Method 4 – Using the Format Cells Command to Add Digits to a Number in Excel

Add digits to the end of a number.

Steps:

Select the data range. Here, C5:C10.
In the Home tab >> go to Cells.
In Format >> choose the Format Cells command.

In the Format Cells dialog box:

Choose the Number command.
Select Custom.
Enter your digits with a Hashtag (#) at the beginning. We used #15.
Click OK to see the result.

This is the output.

To add digits in front of a number.

Select the data range. Here, C15:C20.
Right-Click the data.
In the Context Menu Bar, choose Format Cells.

In the Format Cells dialog box:

Choose the Number command.
Select Custom.
Enter your digits with a Hashtag (#) at the end. Here, 1000000#. If you want to add a zero (0), you must enter 6 zeroes. 5 zeroes is a constant to include 1 zero.
Press OK to see the result.

This is the output.

Method 5 – Using the Format Cells Feature to Add Digits in the Middle of a Number

Steps:

Select the data range. Here, C5:C10.

Press CTRL+1 to open the Format Cells dialog box.

In the Format Cells dialog box:

Choose the Number command.
Select Custom.
Enter your digits with a Hashtag (#) at the beginning. Include the zeroes. Zero is the position of the written digits at the end of the number. Here, #55000. 55 will be in the 4th position of the rightmost part.
Click OK to see the result.

This is the output.

Method 6 – Using the LEFT Function and the Ampersand(&) Operator

Steps:

Digits will be added at the end of a number.

Select a cell, in which you want to keep the changes. Here, D5.
Enter this formula.

=LEFT(C5,6)&"10"

Press ENTER to see the result.

Formula Breakdown

LEFT(C5,6)—->The LEFT function will count the leftmost 6 characters in C5.
- Output: 161201

“10”—-> Inverted Comma will declare 10 as a string.
& —-> Ampersand (&) will join 161201 and 10.

- Output: 16120110

Double-click the Fill Handle to AutoFill the rest of the cells: D6:D10.

This is the output.

You can also add digits in front of a number in Excel by using the LEFT function.

Select a cell, to keep the changes. Here, D15.
Enter this formula.

="10"&LEFT(C15,6)

Press ENTER to see the result.

Formula Breakdown

“10”—-> Inverted Comma declares 10 as a string.
LEFT(C15,6)—->Here, the LEFT function will count the leftmost 6 characters in C15.
- Output: 161201

& —-> Ampersand (&) will join 10 and 161201.

- Output: 10161201

Drag the Fill Handle to AutoFill the rest of the cells: D16:D20.

This is the output.

Method 7 – Using the MID Function and the Ampersand(&) Operator

Steps:

Digits will be added at the end of the number.

Select a cell to keep the changes. We used D15.
Enter this formula.

=MID(C5,1,6)&"10"

Press ENTER to see the result.

Formula Breakdown

MID(C5,1,6)—-> The MID function will extract 6 characters starting from the 1st character in C5.
- Output: 1612010
“10”—-> Inverted Comma declares 10 as a string.
& —-> Ampersand (&) will join 161201 and 10.
- Output: 16120110

Drag the Fill Handle to AutoFill the rest of the cells: D6:D10.

You can also add digits in front of the number in Excel using the MID function.

Select the result cell D15.
Enter this formula.

="10"&MID(C15,1,6)

Press ENTER to see the result.

Formula Breakdown

“10”—-> Inverted Comma declares 10 as a string.
MID(C15,1,6)—-> The MID function will extract 6 characters starting from the 1st character in the cell C15.
- Output: 1612010
& —-> Ampersand (&) will join 10 and 161201.
- Output: 10161201

Drag the Fill Handle to AutoFill the rest of the cells: D16:D20.

This is the output.

Method 8 – Applying the LEFT and MID Functions with the Ampersand(&) Operator

Steps:

Select a cell to keep the changes. Here, D5.
Enter this formula.

=LEFT(C5,3)&"55"&MID(C5,4,3)

Press ENTER to see the result.

Formula Breakdown

LEFT(C5,3)—->The LEFT function will count the leftmost 3 characters in C5.
- Output: 161

“55”—-> Inverted Comma declares 55 as a string.
MID(C5,4,3)—-> The MID function will extract 3 characters starting from the 4th character in C5.
- Output: 201
& —-> Ampersand (&) will join 161, 55, and 201.