Select your name or person icon in the upper right-hand corner of the screen.

Select User Profile.

From the User Profile window, choose Units, Headloss Calculator, or Preferences (for Pipe Standard and Currency).

The Frequency, System Units and Unit of Measure settings in the Units panel are set to metric by default.

To change the Frequency and System Units, select the corresponding radio button. Note, when changing system units from metric to imperial the Unit of Measure parameters automatically update from metric to imperial units.

Select Save.

Select the Headloss Calculator button and then select the desired Calculation Model from the drop-down menu.

Select Save.

Select the Preferences button and then select the desired Pipe Standard and Currency type from their respective drop-down menus.

Select Save.