UsedRange in Worksheet using VBA

usedrange

UsedRange returns a Range object representing the area of a worksheet that is being used. You will use the UsedRange to work with a range of cells in a worksheet whose size you have no control over. The UsedRange property represents the area described by the farthest upper-left and farthest lower-right used cells in a worksheet and includes all cells in between.

As an example, with the active workheet as in the image above, running the code

?ActiveSheet.UsedRange.Address

in the Immediate window will return $B$2:$C$4. From this we can conclude that UsedRange:

Warning
If you are only inserted in data you must be aware that not all rows actually contain data - there may be other reasons a row is included, as in the above example includes the formatted cell C4.