One of the many features of Excel is being nosy. That's right, you can quickly calculate a persons age as long as you have their birth date.

Fortunately, Excel offers a built-in function, DATEDIF, which makes it easy to calculate elapsed calendar time.

Now, letâ s create another function where you need to calculate the age of your customer based on the date of birth included in the database.

Learn how to calculate the net present value (NPV) of your investment projects using Excel's XNPV function.

Easy way to calculate time difference in Excel using simple logic. A simple formula to calculate difference between two dates & times in Excel.

Follow along in this step-by-step guide to learn how to easily calculate hours worked in Microsoft Excel.

To calculate statistical variance in Microsoft Excel, use the built-in Excel function VAR.