Europe is the most searched 'region' for travel adapters, and the answer is mostly reassuring with one big exception. Continental Europe - from Spain to Poland, Italy to Sweden - runs on the same 230 V, 50 Hz and shares the round-pin Type C 'Europlug' family (C, E and F), so a single adapter covers almost the entire mainland. The exception is the British Isles: the United Kingdom and Ireland use the bulky three-rectangular-pin Type G, which fits nothing on the continent. So 'an adapter for Europe' really means one Type C/E/F adapter for the mainland, plus a Type G adapter if your trip includes the UK or Ireland.
| Coming from | Plug adapter | Voltage |
|---|---|---|
| From the United States | Adapter needed | Check converter |
| From the UK | Adapter needed | Compatible |
| From continental Europe | Not needed | Compatible |
| From Australia / New Zealand | Adapter needed | Compatible |
Plug adapters change the shape only. A "Check converter" flag means the voltage differs from your home country - fine for dual-voltage gear (phones, laptops, cameras marked 100-240 V) but risky for single-voltage appliances like hair dryers and travel kettles.
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For continental Europe, yes - a Type C Europlug fits C, E and F sockets across the mainland. The UK and Ireland are the exception and need a separate Type G adapter.
Yes, 230 V at 50 Hz across both the continent and the UK - only the plug shape differs.
Generally no on the mainland, since the Type C Europlug fits C/E/F sockets. You do need one when travelling to or from the UK or Ireland.