Calculating aging but ingore formulas if both dates are blank

[hauteur]

I am able to calculate aging in my column L based off a date entered in column K whether or not a date has been entered in column M.

But what I would like is for my column L to ignore the aging formula if a beginning date has not been entered in column K.

Currently excel returns a value of 43185 if column K is blank. My current formula in row 3 column L is as follows:
=IF(M3<>"",M3-K3,TODAY()-K3)

Any help would be greatly appreciated!

 

[philwojo]

Sorry ignore this, I misread.

 

[Marcelo Branco]

Maybe...

=IF(K3="","",IF(M3<>"",M3-K3,TODAY()-K3))

M.

 

[hauteur]

Marcelo... that was brilliant! Works like a charm, thanks!!!

 

[Marcelo Branco]

You are welcome. Thanks for the feedback.

M.