PlugVoltage

Using Your Hair Straightener (Flat Iron) Abroad

Is a hair straightener (flat iron) dual voltage?

A US 120V single-voltage straightener on 230V power overheats and can scorch hair or fail. Confirm "100–240V" on the plate, or carry a dual-voltage travel model. Frequency does not affect heating.

High-wattage heating appliances — hair dryers, curling irons, flat irons, travel kettles, clothes steamers, and clothes irons — draw a lot of power and are the most likely to overheat or fail abroad. Voltage converters for these are bulky, often inadequate, and can be a fire risk. The safer choice is a dual-voltage travel model (look for "100–240V" on the label) or simply buying the item at your destination.

How to read your hair straightener (flat iron)'s voltage label

  1. Find the small print on the device, plug, or power brick.
  2. Read the INPUT line.
  3. "100–240V" means dual voltage (safe worldwide); a single value like "120V" means single voltage.

Common labels: 120V 60Hz 50W · 100–240V 50/60Hz · 230V~ 50Hz

Hair Straightener (Flat Iron) country-by-country

Safe — adapter only (or nothing)

United StatesJapanCanadaMexico

Needs a voltage converter

United KingdomGermanyIrelandFranceSpainNetherlandsPortugalGreeceAustriaSwedenNorwayDenmarkItalySwitzerlandSouth KoreaAustraliaNew ZealandUnited Arab EmiratesIndiaArgentinaThailandSingaporePhilippinesIndonesiaTurkey

Check your label / city first

Brazil

What to buy

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FAQ

Is a hair straightener (flat iron) dual voltage?

Often not. Many hair straightener (flat iron)s are single-voltage and will overheat on the wrong voltage. Check the label for "100–240V"; if it shows a single value, you need a converter or a dual-voltage version.

Can I use a hair straightener (flat iron) in Europe?

Only if it's dual-voltage. A single-voltage US hair straightener (flat iron) on Europe's 230V can overheat — use a dual-voltage travel model instead.

Do I need a voltage converter for a hair straightener (flat iron)?

For high-watt heating tools, a converter is bulky and often unsafe — a dual-voltage travel version is the better buy.

Adapter vs converter · What "100–240V" means

Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.