Compatibility summary
You will need a travel adapter in Italy; plug types used there differ from United States. Voltage differs by more than 20% — a voltage converter may be needed for some appliances.
Plug comparison
United States plug types: A B
Italy plug types: C F L
There is no common plug type between United States (A B) and Italy (C F L). You need a travel adapter.
Voltage comparison
United States: 120V, 60Hz
Italy: 230V, 50Hz
Voltage converter recommended (United States 120V vs Italy 230V).