Quick answer: First, check the voltage label on your Australian hair dryer or straightener. If it says 100–240V and the destination supply falls within that range, voltage conversion is normally unnecessary, although you may need a suitable plug adapter. If it is single-voltage, check the destination’s actual supply and follow the appliance manufacturer’s instructions; do not assume an adapter or generic converter makes it safe.
Plug adapter: changes the plug shape, not the voltage or frequency. Voltage converter: changes voltage but must be explicitly compatible with the appliance, its power demand and other manufacturer requirements. Dual-voltage: designed for specified voltage ranges, sometimes with a manual selector. Single-voltage: designed only for the voltage or narrow range on its label.
Check the appliance label before packing
Find the input-voltage range, frequency and wattage on the appliance or in its manual. A marked range such as 100–240V may cover both the home and destination supply, but any manual voltage selector must be set correctly. A label such as 220–240V does not establish compatibility with a lower-voltage supply. If the label is missing or unclear, do not guess.
When is a plug adapter enough?
When your appliance’s permitted voltage and frequency match the destination supply and its plug is different, a suitably rated travel adapter may solve the plug-format issue. It does not change electricity supplied to the device. For a clearer comparison, read travel adapter vs voltage converter and our universal travel adapter guide.
What if the appliance is single-voltage?
Check the exact destination supply and the manufacturer’s instructions. Where these do not match, do not plug the appliance in using only an adapter. A converter is an option only if both the appliance manufacturer and converter specifications support that specific appliance type, required load and operating conditions; otherwise use an appliance made for the destination.
Hair dryers need extra care
Hair dryers can have substantial heating and motor loads. A product marketed simply as a ‘travel converter’ may be unsuitable. See our hair dryer converter guide for the separate power and compatibility checks.
Hair straighteners, curlers and hot brushes
Do not infer a straightener is dual-voltage from its brand or appearance. Verify the precise model, frequency requirements and instructions. Our hair straightener converter guide starts with the same label check and covers the narrower converter decision.
Practical travel choices
Where compatibility is uncertain, leave the device at home, use suitable accommodation equipment or choose a travel appliance designed for the destination supply. Check its instructions rather than relying on a plug adapter’s marketing claims.
Bottom line
The label and destination supply—not the plug shape—determine whether an Australian hair appliance can be used overseas. A 100–240V appliance commonly needs only a suitable adapter where the destination voltage is within its rated range; a single-voltage appliance needs a more careful compatibility check.