Any recipe, regardless of where you imported it from, can be converted into Metric. There are 2 places that this feature appears:

1. In an open recipe, you will see a checkbox that reads "Display units in Metric” above the ingredient listing.
2. In the shopping list you will see a toggle in the upper right that reads “Metric”.

Enabling Metric in either place changes all recipes and your shopping list to metric units. To display the original units, simply un-check the box on any recipe or turn off the toggle.