Electricity & sockets around the world

We all know that power sockets vary from country to country, or at least region, but voltages are mainly of two values – 110V or 220V. Of course, this may differ a bit to about +/-10V. So if you don’t have a device that works on dual-voltages, you may want to consider getting a travel adapter. For example, your 110V electric toothbrush will not work with, say, India’s 230V power unless you have an adapter plug AND a converter.

Unfortunately, there are no international standards on power supply (voltage and frequency) or the types of outlets. Use the map and chart below to locate power information by country.

Note: The letter used to denote the adapter plug type may not correspond with a plug manufacturer’s description or labeling.

Power Socket types: Wikipedia: AC power plugs and sockets
 

* Brazil has no standard voltage. Most states use 127V electricity (Acre, Amapá, Amazonas, Espírito Santo, Mato Grosso do Sul, Maranhão, Pará, Paraná, Rondônia, Roraima, Sergipe and Minas Gerais). Other (mainly northeastern) states are on 220V (Alagoas, Brasília, Ceará, Mato Grosso, Goiás, Paraíba, Rio Grande do Norte, Santa Catarina and Tocantins). Although in most parts of the states of Bahia, São Paulo, Rio de Janeiro and Rio Grande do Sul 127V is used, the cities of Santos, Jequié, Jundiaí, São Bernardo do Campo, Novo Friburgo, Bagé, Caxias do Sul and Pelotas run on 220V. The states of Pernambuco and Piauí use 220V, except for the cities of Paulista and Teresina (127V).

** Although the main voltage in Japan is the same everywhere, the frequency differs from region to region. Eastern Japan uses predominantly 50 Hz (Tokyo, Kawasaki, Sapporo, Yokohama, Sendai), whereas Western Japan prefers 60 Hz (Osaka, Kyoto, Nagoya, Hiroshima).

*** Saudi Arabia uses 110V in many parts of the country, such as the Dammam and al-Khobar area (situated in the eastern province of Ash Sharqiyah). 220V is commonly used as well, especially in hotels.