Each time, going on a trip to some country, climb on the Internet and try to figure out what a socket is there. I decided to collect information in one post and have at hand. Save and you yourself in order to save extra money on adapters that are soldier selling at airports ...
There are 15 types of electrical outlets. Differences consist in form, size, maximum current, availability of ground compounds. All types of sockets are enshrined in countries within standards and norms. Although the image below the outlet and can be similar in forms, they differ in size of nests and pins (plugs).
All types of American classification have a designation type X (Type x).
| Name | Voltage | Current | Ground | Distribution countries |
| Type A. | 127V. | 15A | Not | USA, Canada, Mexico, Japan |
| Type B. | 127V. | 15A | Yes | USA, Canada, Mexico, Japan |
| Type C. | 220V. | 2.5A. | Not | Europe |
| Type D. | 220V. | 5a | Yes | India, Nepal |
| Type E. | 220V. | 16A | Yes | Belgium, France, Czech Republic, Slovakia |
| Type F. | 220V. | 16A | Yes | Russia, Europe |
| Type G. | 220V. | 13A. | Yes | United Kingdom, Ireland, Malta, Malaysia, Singapore |
| Type H. | 220V. | 16A | Yes | Israel / TD> |
| Type I. | 220V. | 10A | Well no | Australia, China, Argentina |
| Type J. | 220V. | 10A | Yes | Switzerland, Luxembourg |
| Type K. | 220V. | 10A | Yes | Denmark, Greenland |
| Type L. | 220V. | 10a, 16a. | Yes | Italy, Chile |
| Type M. | 220V. | 15A | Yes | South Africa |
| Type N. | 220V. | 10A, 20A. | Yes | Brazil |
| Type O. | 220V. | 16A | Yes | Thailand |
In most countries, the standards are due to their history. So, for example, India, being a British colony until 1947, also adopted its standard. Until now, in some Hotels in Great Britain, you can find the old standard of type D.
List of standards sockets by country
| Australia | I. | 230 B. | 50 Hz |
| Austria | C, F. | 230 B. | 50 Hz |
| Azerbaijan | C, E, F | 220 B. | 50 Hz |
| Azores | C, F. | 220 B. | 50 Hz |
| Albania | C, F. | 220 B. | 50 Hz |
| Algeria | C, F. | 230 B. | 50 Hz |
| American Samoa | A, B, F, I | 120 B. | 60 Hz |
| Anguilla | A, B. | 110 B. | 60 Hz |
| Angola. | C. | 220 B. | 50 Hz |
| Andorra | C, F. | 230 B. | 50 Hz |
| Antigua | A, B. | 230 B. | 60 Hz |
| Argentina | C, I. | 220 B. | 50 Hz |
| Armenia | C, F. | 230 B. | 50 Hz |
| Aruba | A, B, F | 127 B. | 60 Hz |
| Afghanistan | C, D, F | 240 B. | 50 Hz |
| Bahamas | A, B. | 120 B. | 60 Hz |
| Balearic Islands | C, F. | 220 B. | 50 Hz |
| Bangladesh | A, C, D, G, K | 220 B. | 50 Hz |
| Barbados | A, B. | 115 B. | 50 Hz |
| Bahrain | G. | 230 B. | 50 Hz |
| Belarus | C, F. | 220 B. | 50 Hz |
| Belize | A, B, G | 110 B. | 60 Hz |
| Belgium | C, E. | 230 B. | 50 Hz |
| Benin | C, E. | 220 B. | 50 Hz |
| Bermuda | A, B. | 120 B. | 60 Hz |
| Bulgaria | C, F. | 230 B. | 50 Hz |
| Bolivia | A, C. | 220 B. | 50 Hz |
| Bonaire | A, C. | 127 B. | 50 Hz |
| Bosnia | C, F. | 220 B. | 50 Hz |
| Botswana | D, G, M | 230 B. | 50 Hz |
| Brazil | IEC 60906-1 | 220V. | 60 Hz |
| Brunei | G. | 240 B. | 50 Hz |
| Burkina Faso | C, E. | 220 B. | 50 Hz |
| Burundi | C, E. | 220 B. | 50 Hz |
| Butane | D, F, G, M | 230 B. | 50 Hz |
| Vanuatu | I. | 230 B. | 50 Hz |
| Great Britain | G (occasionally d and m) | 230 B. | 50 Hz |
| Hungary | C, F. | 230 B. | 50 Hz |
| Venezuela | A, B. | 120 B. | 60 Hz |
| Virgin Islands | A, B. | 110 B. | 60 Hz |
| East Timor | C, E, F, I | 220 B. | 50 Hz |
| Vietnam | A, C. | 220 B. | 50 Hz |
| Gabon | C. | 220 B. | 50 Hz |
| Haiti | A, B. | 110 B. | 60 Hz |
| Guyana | A, b, d, g | 240 B. | 60 Hz |
| Gambia | G. | 230 B. | 50 Hz |
| Ghana | D, G. | 230 B. | 50 Hz |
| Guadelife | C, D, E | 230 B. | 50 Hz |
| Guatemala | A, B. | 120 B. | 60 Hz |
| Guinea | C, F, K | 220 B. | 50 Hz |
| Guinea-Bisau. | C. | 220 B. | 50 Hz |
| Germany | C, F. | 230 B. | 50 Hz |
| Gibraltar | G, K. | 240 B. | 50 Hz |
| Honduras | A, B. | 110 B. | 60 Hz |
| Hong Kong | D, G, M | 220 B. | 50 Hz |
| Grenada | G. | 230 B. | 50 Hz |
| Greenland | C, K. | 220 B. | 50 Hz |
| Greece | C, F, Tripolics | 230 B. | 50 Hz |
| Georgia | C. | 220 B. | 50 Hz |
| GUAM. | A, B. | 110 B. | 60 Hz |
| Denmark | C, E, K | 230 B. | 50 Hz |
| Djibouti | C, E. | 220 B. | 50 Hz |
| Dominica | D, G. | 230 B. | 50 Hz |
| Dominican Republic | A, B. | 110 B. | 60 Hz |
| Egypt | C. | 220 B. | 50 Hz |
| Zambia | C, D, G | 230 B. | 50 Hz |
| Western Samoa | I. | 230 B. | 50 Hz |
| Zimbabwe | D, G. | 220 B. | 50 Hz |
| Israel | C, H, M | 230 B. | 50 Hz |
| India | C, D, M | 230 B. | 50 Hz |
| Indonesia | C, F, G | 220 B. | 50 Hz |
| Jordan | B, C, D, F, G, J | 230 B. | 50 Hz |
| Iraq | C, D, G | 230 B. | 50 Hz |
| Iran | C, F. | 220 B. | 50 Hz |
| Ireland | G (occasionally D, M and F) | 230 B. | 50 Hz |
| Iceland | C, F. | 230 B. | 50 Hz |
| Spain | C, F. | 230 B. | 50 Hz |
| Italy | C, F, L | 230 B. | 50 Hz |
| Yemen | A, D, G | 230 B. | 50 Hz |
| Cape Verde | C, F. | 220 B. | 50 Hz |
| Kazakhstan | C, E, F | 220 B. | 50 Hz |
| Cayman islands | A, B. | 120 B. | 60 Hz |
| Cambodia | A, C, G | 230 B. | 50 Hz |
| Cameroon | C, E. | 220 B. | 50 Hz |
| Canada | A, B. | 120 B. | 60 Hz |
| Canary Islands | C, E, F, L | 220 B. | 50 Hz |
| Qatar | D, G. | 240 B. | 50 Hz |
| Kenya | G. | 240 B. | 50 Hz |
| Kyrgyzstan | C. | 220 B. | 50 Hz |
| Kiribati | I. | 240 B. | 50 Hz |
| China | A, C, I | 220 B. | 50 Hz |
| Colombia | A, B. | 120 B. | 60 Hz |
| Komora. | C, E. | 220 B. | 50 Hz |
| Congo (Brazzavil) | C, E. | 230 B. | 50 Hz |
| Congo (Kinshasa) | C, D. | 220 B. | 50 Hz |
| Corfa | C. | 220 B. | 50 Hz |
| Costa Rica | A, B. | 120 B. | 60 Hz |
| Côte d'Ivoire | C, E. | 230 B. | 50 Hz |
| Cuba | A, B. | 110 B. | 60 Hz |
| Kuwait | C, G. | 240 B. | 50 Hz |
| Laos | A, B, C, E, F | 230 B. | 50 Hz |
| Latvia | C, F. | 220 B. | 50 Hz |
| Lesotho | M. | 220 B. | 50 Hz |
| Liberia | A, B, C, E, F | 120 B. | 50 Hz |
| Lebanon | A, B, C, D, G | 240 B. | 50 Hz |
| Libya | D, L. | 127 B. | 50 Hz |
| Lithuania | C, F. | 220 B. | 50 Hz |
| Liechtenstein | C, J. | 230 B. | 50 Hz |
| Luxembourg | C, F. | 230 B. | 50 Hz |
| Mauritius | C, G. | 230 B. | 50 Hz |
| Mauritania | C. | 220 B. | 50 Hz |
| Madagascar | C, D, E, J, K | 127 B. | 50 Hz |
| Madeira | C, F. | 220 B. | 50 Hz |
| Macau (China) | D, M, G, F | 220 B. | 50 Hz |
| Malawi | G. | 230 B. | 50 Hz |
| Malaysia | G, M. | 240 B. | 50 Hz |
| Mali. | C, E. | 220 B. | 50 Hz |
| Maldives | A, d, g, j, k, l | 230 B. | 50 Hz |
| Malta | G. | 230 B. | 50 Hz |
| Morocco | C, E. | 127 B. | 50 Hz |
| Martinique | C, D, E | 220 B. | 50 Hz |
| Mexico | A, B. | 127 B. | 60 Hz |
| Micronesia | A, B. | 120 B. | 60 Hz |
| Mozambique | C, F, M | 220 B. | 50 Hz |
| Moldova | C, F. | 230 B. | 50 Hz |
| Monaco | C, D, E, F | 220 B. | 50 Hz |
| Mongolia | C, E. | 230 B. | 50 Hz |
| Montserrat | A, B. | 230 B. | 60 Hz |
| Myanmar / Birma | C, D, F, G | 230 B. | 50 Hz |
| Namibia | D, M. | 220 B. | 50 Hz |
| Nauru | I. | 240 B. | 50 Hz |
| Nepal | C, D, M | 230 B. | 50 Hz |
| Niger | A, B, C, D, E, F | 220 B. | 50 Hz |
| Nigeria | D, G. | 240 B. | 50 Hz |
| Antille Islands | A, B, F | 220 B. | 50 Hz |
| Netherlands | C, F. | 230 B. | 50 Hz |
| Nicaragua | A, B. | 120 B. | 60 Hz |
| New Zealand | I. | 230 B. | 50 Hz |
| New Caledonia | E. | 220 B. | 50 Hz |
| Norway | C, F. | 230 B. | 50 Hz |
| Norman Islands | C, G. | 230 B. | 50 Hz |
| United Arab Emirates | C, D, G | 220 B. | 50 Hz |
| Okinawa | A, B. | 100 B. | 60 Hz |
| Oman | C, G. | 240 B. | 50 Hz |
| Isle Of Man | G. | 240 B. | 50 Hz |
| Cook Islands | I. | 240 B. | 50 Hz |
| Pakistan | C, D, G, M | 230 B. | 50 Hz |
| Panama | A, B. | 110 B. | 60 Hz |
| Papua New Guinea | I. | 240 B. | 50 Hz |
| Paraguay | C. | 220 B. | 50 Hz |
| Peru | A, b, c | 220 B. | 60 Hz |
| Poland | C, E. | 230 B. | 50 Hz |
| Portugal | C, F. | 220 B. | 50 Hz |
| Puerto Rico | A, B. | 120 B. | 60 Hz |
| Cyprus | G. | 240 B. | 50 Hz |
| Macedonia | C, F. | 220 B. | 50 Hz |
| Reunion. | E. | 220 B. | 50 Hz |
| Russia | C, F. | 220 B. | 50 Hz |
| Rwanda | C, J. | 230 B. | 50 Hz |
| Romania | C, F. | 230 B. | 50 Hz |
| Salvador | A, B. | 115 B. | 60 Hz |
| Sao Tome and Principe | C, F. | 220 B. | 50 Hz |
| Saudi Arabia | A, b, f, g | 220 B. | 60 Hz |
| Swaziland. | M. | 230 B. | 50 Hz |
| North Korea | C. | 220 B. | 50 Hz |
| Seychelles | G. | 240 B. | 50 Hz |
| Gaza Strip | C, H. | 230 B. | 50 Hz |
| Senegal | C, D, E, K | 230 B. | 50 Hz |
| Saint-Pierre and Miquelon | E. | 230 B. | 50 Hz |
| Saint Vincent | A, C, E, G, I, K | 230 B. | 50 Hz |
| Saint Kitts and Nevis | A, B, D, G | 220 B. | 60 Hz |
| Saint Lucia | G. | 240 B. | 50 Hz |
| Serbia | C, F. | 220 B. | 50 Hz |
| Singapore | G (M for powerful devices) | 230 B. | 50 Hz |
| Syria | C, E, L | 220 B. | 50 Hz |
| Slovakia | C, E. | 230 B. | 50 Hz |
| Slovenia | C, F. | 230 B. | 50 Hz |
| USA | A, B. | 120 B. | 60 Hz |
| Somalia | C. | 220 B. | 50 Hz |
| Sudan | C, D. | 230 B. | 50 Hz |
| Suriname | C, F. | 127 B. | 60 Hz |
| Sierra Leone | D, G. | 230 B. | 50 Hz |
| Tajikistan | C, I. | 220 B. | 50 Hz |
| Thailand | A, b, c, f, i without grounding | 220 B. | 50 Hz |
| Taiti | A, B, E | 220 B. | 60 Hz |
| Taiwan | A, B. | 110 B. | 60 Hz |
| Tanzania | D, G. | 230 B. | 50 Hz |
| Tenerife | C. | 220 B. | 50 Hz |
| Togo | C. | 220 B. | 50 Hz |
| Tonga | I. | 240 B. | 50 Hz |
| Trinidad and Tobago | A, B. | 115 B. | 60 Hz |
| Tunisia | C, E. | 230 B. | 50 Hz |
| Turkmenistan | B, F. | 220 B. | 50 Hz |
| Turkey | C, F. | 230 B. | 50 Hz |
| Uganda | G. | 240 B. | 50 Hz |
| Uzbekistan | C, I. | 220 B. | 50 Hz |
| Ukraine | C, F. | 220 B. | 50 Hz |
| Uruguay | C, F, L and I | 230 B. | 50 Hz |
| Faroe islands | C, K. | 220 B. | 50 Hz |
| Fiji | I. | 240 B. | 50 Hz |
| Philippines | A, B, C | 220 B. | 60 Hz |
| Finland | C, F. | 230 B. | 50 Hz |
| Falkland Islands | G. | 240 B. | 50 Hz |
| France | C, E. | 230 B. | 50 Hz |
| French Guiana | C, D, E | 220 B. | 50 Hz |
| Croatia | C, F. | 230 B. | 50 Hz |
| CAR | C, E. | 220 B. | 50 Hz |
| Chad | D, E, F | 220 B. | 50 Hz |
| Montenegro | C, F. | 220 B. | 50 Hz |
| Czech Republic | C, E. | 230 B. | 50 Hz |
| Chile | C, L. | 220 B. | 50 Hz |
| Switzerland | C, J. | 230 B. | 50 Hz |
| Sweden | C, F. | 230 B. | 50 Hz |
| Sri Lanka | D, M, G | 230 B. | 50 Hz |
| Ecuador | A, B. | 120 B. | 60 Hz |
| Equatorial Guinea | C, E. | 220 B. | 50 Hz |
| Eritrea | C. | 230 B. | 50 Hz |
| Estonia | C, F. | 230 B. | 50 Hz |
| Ethiopia | C, E, F, L | 220 B. | 50 Hz |
| South Africa | C, M, IEC 60906-1 | 220 B. | 50 Hz |
| South Korea | A, B, C, F | 220 B. | 60 Hz |
| Jamaica | A, B. | 220 B. | 50 Hz |
| Japan | A, B. | 100 B. | 50 Hz |
A source