Let's say that cell A1 contains a length in feet: 12.1 then in cell B1 put:

=INT(A1)&"' "&INT(12*(A1-INT(A1)))&""" "&TEXT(MOD(12*(A1-INT(A1)),1),"##/##")

which will display as 12" 1" 1/5

If you need the reverse, put the feet and inches into separate cells to make
the math easier

--
Gary''s Student


"JB" wrote:

How do I set a format in cells to display feet and inches as follows?

3'-10 1/2"

or

3-10 1/2