Indonesia - and Bali, its tourism powerhouse - uses round-pin Type C and Type F sockets at 230 V, 50 Hz, the same as continental Europe, so Europeans plug in without a thing. The story here is the Australians: Bali is their favourite overseas escape, and the Australian Type I plug fits nothing in Indonesia, so they always need an adapter.
| 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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Yes - the Australian Type I plug doesn't fit Indonesian Type C/F sockets. Voltage matches at 230 V.
Types C and F, the European round-pin plugs, at 230 V / 50 Hz.
Usually not - the Type C Europlug fits directly.