I'm not sure if it's still being maintained. You can find the chart here: https://www.united.com/en/us/fly/mil...a-airways.html and then just do the calculation yourself. Alternatively, you can find another airline that has the same earning rules for the fare class you're considering, and use that instead. For example, for Discount PE in N class, you could calculate it as if it were a Swiss flight. Make sure to leave Premier Status set at Member, because the calculator also hasn't been updated to note that LX flights no longer generate bonus miles.

For LAX-FCO, you'd earn 750 PQP in any PE class.