Argentina uses the same Type I plug as Australia and New Zealand, but with one quirk: the live and neutral wiring is reversed compared to Australian convention. For most travelers this is invisible because modern dual-voltage chargers don't care about polarity. The bigger concern for US travelers is the 220 V mains, double the US 120 V.
Quick answer by origin:
- From the US or Canada: Adapter required. Voltage check critical.
- From the UK: Adapter required. Voltage match is fine.
- From the EU (Schengen): Adapter required. Voltage match is fine.
- From Australia or NZ: Often nothing needed (Type I fits with reversed polarity).
What plug does Argentina use?
Argentina uses Type I plugs defined under IRAM 2073, dimensionally identical to the Australian AS/NZS 3112 standard:
- Two flat pins angled at 30 degrees from vertical, forming a V
- A vertical earth pin below
- Pin dimensions match Australian plugs exactly
The notable difference from Australia: Argentine plugs are wired with live and neutral on opposite sides from Australian convention. Argentina's live is on the left (looking at the socket); Australia's live is on the right.
For most modern devices this is invisible. Switch-mode chargers, double-insulated electronics, and anything with internal polarity handling work identically regardless of which side is live.
For polarity-sensitive equipment (older lamps with switched neutral, certain medical devices, some studio audio equipment), the reversed polarity can cause issues. These are uncommon among travel electronics.
Argentina's voltage and frequency
Argentina runs at 220 V, 50 Hz. The grid is operated by various regional distribution companies under the national Cammesa coordination. Voltage stability varies:
- Buenos Aires, Córdoba, Mendoza: usually within 5% of spec
- Patagonia (Bariloche, El Calafate, Ushuaia): stable in major hotels, more variable in remote estancias
- Northwest (Salta, Jujuy): generally stable in cities, variable in altiplano accommodations
For US and Canadian travelers, this is roughly double your 120 V home mains. The dual-voltage check matters.
For UK, EU, Australian, and most Asian travelers, voltage matches.
Do I need a travel adapter for Argentina? By origin country
From the United States or Canada
Adapter required. US plugs don't fit Type I sockets. Buy a US-to-Australia adapter or a universal that explicitly covers Type I.
Voltage check: every device needs 100-240 V on the brick. Single-voltage US appliances will burn out at Argentine mains.
From the United Kingdom or Ireland
Adapter required, voltage match is fine. UK Type G is physically incompatible with Type I. UK-to-Australia adapters cost £3-8.
From the EU (Schengen area)
Adapter required, voltage match is fine. Europlugs, Schuko, and other European plugs don't fit Type I. EU-to-Australia adapters cover the gap.
From Australia or New Zealand
Often nothing needed. Type I plugs fit Argentine sockets directly. The reversed polarity doesn't affect most modern devices. For polarity-sensitive equipment, a universal adapter with polarity reset can be useful.
Practical answers for common Argentine travel situations
Will my MacBook charger work in Argentina? Yes. All Apple chargers are dual voltage and unpolarized internally. Add an Australia-style adapter unless you have a Type I plug already.
What about Buenos Aires vs Patagonia vs Mendoza wine region? Same Type I standard everywhere. No regional variation in plug type.
Are Argentine hotels reliable for power? Yes in major cities. Patagonian and remote estancia accommodations see more variable supply during winter storms.
Can I buy an adapter at Buenos Aires (EZE) airport? Yes, at airport markup: ARS 8,000-20,000 ($5-12) for adapters that cost ARS 2,500-6,000 at any Argentine electronics shop or supermarket.
What about charging on Argentine trains and buses? Long-distance buses (Andesmar, Plusmar, Crucero del Norte) typically have Type I outlets at seats. Some intercity train services have outlets but coverage is limited.
Will my UK three-pin shaver charge in Argentina? With a UK-to-Australia/Argentina adapter, yes. Voltage matches at 220-230 V. Polarity reversal doesn't affect shavers.
Argentina on multi-country itineraries
A common pattern is Argentina combined with Brazil, Chile, or Uruguay. Power-wise:
- Argentina to Brazil: different plug (Type N), adapter needed. Voltage varies in Brazil by state.
- Argentina to Chile: similar Type I but Chilean version (some buildings have a Type L variant). Mostly compatible.
- Argentina to Uruguay: Uruguay uses Type I, F, and L. Argentine plugs fit some Uruguayan sockets.
For broader South American trips, a universal adapter is more reliable than country-specific ones.
Charging multiple devices at once
Argentine outlets typically come singly per faceplate in older buildings, in pairs in modern hotels. For travel charging:
- A GaN multi-port charger with a Type I plug, charges 4 devices off one socket
- A Type I-input travel power strip
- A USB-C hub charger that plugs into Type I
Argentine sockets deliver 10 A per outlet (2,200 W at 220 V), enough for any travel charging plus a hair dryer.
The bottom line
Argentina uses the same Type I plug as Australia at 220 V mains. For Australian and New Zealand travelers, the plug fits directly with no adapter (the reversed polarity is invisible for modern devices).
For US, UK, and EU travelers, an Australia-style adapter handles the country. The 220 V voltage requires dual-voltage devices for US visitors.