The natural thing to do would be to create a new calculated “length” parameter and setup the formula as
A_length * B_length
What do you mean inconsistent units!!!! I…… don’t bbbbbbbelieve it!! So you swear at Revit and you wonder what your next move should be.
Well you actually have to neutralize the units in one of the parameters to get the result. Revit seems to be rather fussy about multiply two parameter of the same type together. It’s not like Excel. So if you divide one of the parameters by 1, this neutralizes the units and allows the calculated formula to perform correctly.
A_length / 1 * B_length It’s a similar process if you have two “number” parameters and you want to multiply these together to get a resulting “length” parameter. So we have two parameters X and Y setup as “number” parameters. We’d like to multiply these together to get the result as a new “length” parameter.
Again, we get the same inconsistent units message if we just try to multiply these together.
However, this time if we multiply one of the parameters by 1 to reinstate the units, the calculated formula will now work.
A_length * 1 * B_length Good luck and happy formula creation.