Most hotels use 220 volts 50 cycles and two-pronged plugs. However it is not uncommon to find some hotels using 110 volts, particularly in the provinces. Check before using an appliance. Some hotels supply adaptors on request.

The local currency is the Rupiah. Major world currencies, either banknotes or travellers cheques, are easily exchanged at banks and moneychangers in major tourist destinations. It is advisable to carry sufficient amounts of Rupiah when travelling to smaller towns or outer provinces.