## How many days from birthday to date?

### How do you know what someone's age is in days?

In this post, we will show you a Microsoft Excel formula, how you can determine the age of a person, in days. For example, if you want to apply an age counter, make a birth calculator, apply an age formula, and so on, you can apply this formula.

- First of all you have to write the today’s date of the line 1 in C Column as shown in the picture below.
- Then the names of the people in the first column as shown in column A.
- Then their date of birth in the B column.
- The formula in column C is as shown.

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