## Excel Formula: Add dashes to phone numbers

Author: Sun Last Modified: 2020-02-22

Here is a list of phone numbers in a worksheet, but generally, you rather like to add dashes to separate the phone number for better read as below screenshot shown, how can you use a formula to quickly add dashes to them in Excel? This tutorial will give you an answer.

Generic formula:

 REPLACE(REPLACE(phone_num,n1,0,"-"),n2,0,"-")

Arguments

 Phone_num: the number you want to add dashes. N1: the first position of number string you want to add dash. N2: the second position of number string you want to add dash.

How this formula work

Here is a phone number in cell B3 which you want to add dashes, please use below formula in a cell:

 =REPLACE(REPLACE(B3,4,0,"-"),8,0,"-")

Press Enter key, the dashes have been added in specified position.

Explanation

REPLACE function is used to find and replace text specified by location in given text with a new text.

The inside REPLACE function REPLACE(B3,4,0,"-") adds dash at the front of the forth character in cell B3.

It returns 313-5512345.

Then the outside REPLACE function can be seen as
=REPLACE("313-5512345",8,0,"-")
Which adds dash at the front of the eighth character in text string 313-5512345.

### Sample File

Click to download sample file

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