Select several destinations to see the union of reference plug types, voltage candidates and frequency. The tool does not claim a minimum adapter count.
Use the multi-country adapter kit planner
How to interpret the result
The union of listed plug families shows possible shapes across a trip, not the number of products to buy. One adapter may fit only some sockets or may lack earth. Keep separate notes for each property and appliance.
A practical example and limit
Try France, Italy, Switzerland and the UK. The union of reference families includes C, E, F, G, J and L, but that union is not a shopping list or a count of adapter heads. A specific room may present a subset, and a grounded Class I appliance has stricter needs than an ungrounded charger. Record property photos or socket descriptions before selecting equipment.
Before connecting anything
Read the exact appliance AC INPUT label, destination outlet voltage and plug variant. Check a grounded path and the lowest rated AC connector. If the result says blocked or needs confirmation, leave the setup unplugged until the missing point is resolved.
Adapter versus converter · Research methods and sources