One of the most confusing aspects of international travel is the sheer variety of electrical outlets around the world. Arrive in the wrong country with the wrong adapter, and your phone, laptop, or camera simply won't charge. This complete guide covers all 16 internationally recognized plug and socket types — what they look like, where they're used, and what you need to know before you travel.
Why Are There So Many Plug Types?
The fragmented global landscape of plug types is primarily a product of history. Electricity was commercialized in different countries at different times, by different companies, with no international coordination. By the time global standardization became a topic of discussion, billions of existing sockets and devices made switching impractical. National standards bodies each introduced their own formats, and colonial relationships spread local standards to other parts of the world.
The International Electrotechnical Commission (IEC) labels plug types alphabetically from Type A to Type N. Understanding these labels is the most practical way to navigate international power compatibility as a traveler.
⚠ Critical distinction: A plug adapter only changes the physical connector shape — it does NOT change voltage. If your device is 120V only and the destination uses 230V, you also need a voltage converter. See our guide on adapters vs converters for the full explanation.
The 5 Most Common Plug Types for Travelers
While there are 16 distinct types, five plug types account for the vast majority of countries travelers visit. Master these and you'll be covered for 90% of international destinations.
TYPE A Two Flat Parallel Pins — North America, Japan, Mexico
Type A is the standard plug used in the United States, Canada, Mexico, Japan, and much of Central America. It consists of two flat parallel pins with no grounding connection. Type A plugs can be inserted into Type B sockets (which have a grounding hole), but Type B plugs cannot fit into Type A sockets. Countries using Type A: USA, Canada, Mexico, Japan, Colombia, Cuba, El Salvador, Guatemala, Haiti, Honduras, Nicaragua, Panama, Venezuela.
TYPE B Two Flat Pins + Round Ground — North America
Type B is identical to Type A but adds a round grounding (earth) pin below the two flat blades. It's the three-prong version of the American plug. Type B is predominantly found in the United States, Canada, and Mexico. Type A plugs fit into Type B sockets, making the two types compatible in practice. For grounded appliances, a Type B socket is required.
TYPE C Two Round Thin Pins — Europe, South America, Asia, Africa
The Europlug (Type C) is the single most widely used plug type in the world. Its two thin round pins (4mm diameter) fit into Type E, F, and many hybrid sockets. It is used in almost all of Europe (except UK, Ireland, Cyprus, Malta), South America (except Brazil), most of Africa, most of Asia (except Japan, UK territories), and the Middle East. If you're traveling to Europe, bring a Type C adapter at minimum.
TYPE G Three Rectangular Pins — UK, Ireland, Southeast Asia
The British plug (Type G) is the most complex standard plug — its three rectangular blades in a triangular arrangement include a mandatory fuse inside the plug itself. Type G is used throughout the United Kingdom, Ireland, Hong Kong, Singapore, Malaysia, parts of the Middle East (UAE, Qatar, Bahrain), Kenya, Uganda, and Tanzania. It's a physically large plug that does not fit into any other socket type without an adapter.
TYPE I Two or Three Flat Pins (Angled) — Australia, New Zealand, China
Type I is the standard for Australia, New Zealand, Papua New Guinea, and Argentina. China uses a variant that is similar but not always compatible. The two-pin version (ungrounded) and three-pin version (with a V-shaped ground blade) are both common. Australian plugs are angled at approximately 30 degrees from vertical, making them visually distinctive. Always verify whether you need the two-pin or three-pin version for your destination.
The Remaining 11 Plug Types
TYPE D Three Large Round Pins — India, Sri Lanka, Nepal, West Africa
Type D features three large round pins (9mm diameter) in a triangular pattern. It was the British standard for India before independence and remains the dominant plug in India, Sri Lanka, Nepal, and is also found in Nigeria, Ghana, and parts of West Africa. Many buildings in these regions also have Type C sockets for compatibility with smaller electronics.
TYPE E Two Round Pins + Hole — France, Belgium, Poland
Type E is the standard French plug: two thick round pins (4.8mm) with a round hole in the socket body for a grounding pin. Type E is found in France, Belgium, Poland, Slovakia, the Czech Republic, and much of francophone Africa. The Type C Europlug fits Type E sockets (ungrounded use only). Type E and Type F are often sold as combined "E/F" adapters.
TYPE F Two Round Pins + Side Clips — Germany, Austria, Netherlands
The Schuko plug (Type F) uses two thick round pins (4.8mm) like Type E but grounds via two side clips on the socket rather than a central pin. It's standard throughout Germany, Austria, the Netherlands, Spain, Portugal, and most Eastern Europe. Type C plugs fit Type F sockets. The Schuko is widely considered the world's safest common socket design due to its recessed cavity and side-ground contacts.
TYPE H Three Pins in a V — Israel, Palestine
Type H is used exclusively in Israel and Palestinian territories. Its three flat pins are arranged in a distinctive Y or "peace sign" pattern. Older Israeli sockets are round, while newer sockets accept both the old round pins and the new flat-pin standard. If traveling to Israel, a dedicated Type H adapter is essential as no other plug type fits.
TYPE J Three Round Pins — Switzerland, Liechtenstein
Type J is Switzerland's unique standard: three round pins in a triangular arrangement, but smaller than Type D. Switzerland is notably the only country with mandatory grounded sockets in all rooms by law. Type C plugs fit older Swiss sockets. Type J is unique to Switzerland and Liechtenstein — always carry a dedicated Type J adapter when visiting Switzerland.
TYPE K Two Round Pins + U-Ground — Denmark, Greenland
Denmark uses Type K, which looks similar to Type C but adds a U-shaped grounding clip below the two round pins. Danish sockets also accept Type C and Type E/F plugs (ungrounded). Type K is used in Denmark, Greenland, and the Faroe Islands. A Type C adapter works for most devices; a dedicated Type K is only needed for grounded appliances.
TYPE L Three Round Pins (Inline) — Italy, Chile
Type L is Italy's distinctive standard: three round pins arranged in a single line. Italian sockets come in two subtypes — the older 10A version and the larger 16A version. Type C plugs fit the larger Italian sockets. Chile also uses a version of Type L. Type L is not compatible with any other regional plug without an adapter.
TYPE M Three Large Round Pins — South Africa, India
Type M looks like a larger version of Type D, with three large round pins (9mm) in a triangular pattern. It is the dominant standard in South Africa, Lesotho, Eswatini, Mozambique, and Namibia. South African sockets often also accept Type C for smaller devices. A dedicated Type M adapter is required for all grounded appliances in southern Africa.
TYPE N Two or Three Round Pins — Brazil, South Africa (new)
Type N is the IEC standard adopted by Brazil in 2010 and South Africa in 2013. It features two round pins plus an optional central ground pin, all in a recessed socket. Brazil's older buildings still have Type A and Type C sockets; newer construction uses Type N exclusively. South Africa's newer buildings increasingly feature Type N alongside Type M.
Quick Reference: Which Adapter Do You Need?
Use this as a fast reference when planning your trip:
- USA / Canada → Europe: Type C (or Type E/F combo)
- USA / Canada → UK / Ireland / Kenya / Singapore: Type G
- USA / Canada → Australia / New Zealand: Type I
- USA / Canada → India: Type D or Type C
- USA / Canada → South Africa: Type M or Type N (+ Type C for phones)
- USA / Canada → Japan: No adapter needed (both use Type A)
- UK → Europe: Type C (or E/F combo)
- UK → Australia: Type I
- Europe → UK: Type G
- Europe → Switzerland: Type J
- Europe → Israel: Type H
Universal Travel Adapters: What to Look For
Rather than carrying multiple single-type adapters, many travelers prefer a single universal adapter. A quality universal adapter should cover Type A, B, C, E, F, G, I, and ideally Type M. Look for:
- Surge protection: Protects against voltage spikes, especially important in developing countries
- USB and USB-C ports: Charge multiple devices without using the socket itself
- Safety shutters: Prevents accidental contact with live pins
- Grounding: Proper earthing for laptop power bricks and other grounded devices
- Wattage rating: At least 2000W capacity for hair dryers and high-wattage appliances
For a full buying guide with specific product recommendations, see our Universal Travel Adapter Buying Guide.
✓ Pro tip: Use our free voltage checker tool to look up the exact plug type and voltage for your destination country. Get an instant compatibility verdict for your specific devices.