Display full size in inch on a dimension created on a scale drawing?

I am working over a 1/72 scale drawing and scale photo, but when placing dims I need to see the scale dims and then the full size dim in inches

Currently I am taking a calculator and multiplying the dim in mm by 72 then dividing by 25.4 and typing it in using properties, to the right of the <>.

however if I alter the size of the dimension that inch value is immediately inaccurate.

any other way of doing this ?
(enlarging everything up by 72 is not an option as I do need it at 1/72 whilst working on it.


Hi Steve,

You can setup the dimension style to add alternative values:
(scroll down in the dimension style settings panel)

Does that work for you?

Thanks, I will try that.