A continent is a vast, uninterrupted expanse of land typically seen as a unified geographical area. There are a total of seven(7) continents, namely Asia, Africa, North America, South America, Antarctica, Europe, and Australia, listed in order of size from largest to smallest. On occasion, Europe and Asia are combined into a single continent known as Eurasia.

Continents generally align with the locations of tectonic plates to some extent. There is significant diversity in the sizes of continents. For instance, Asia surpasses Australia in size by more than fivefold. Greenland, the world's largest island, is approximately just a quarter of the size of Australia. The continents exhibit distinct levels of compactness. Africa boasts the most uniform coastline, resulting in the lowest proportion of coastline relative to its total area.

In contrast, Europe stands out as the most irregular and indented continent, with by far the highest ratio of coastline compared to its total area.

There are 48 countries in Asia, including transcontinental countries like Georgia and Türkiye, which straddle the boundary with Europe but are counted here as Asian.

Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, China, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar, Nepal, North Korea, Oman, Pakistan, Palestine, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkmenistan, Türkiye, United Arab Emirates, Uzbekistan, Vietnam, Yemen

There are 54 countries in Africa, making it the continent with the highest number of countries.

Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Comoros, DR Congo, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Niger, Nigeria, Republic of the Congo, Rwanda, Senegal, Seychelles, Sierra Leone, Somalia, South Africa, South Sudan, Sudan, São Tomé and Príncipe, Tanzania, Togo, Tunisia, Uganda, Zambia, Zimbabwe

There are 35 countries across the Americas — 23 in North America, including 7 countries that are part of Central America, and 12 in South America.

North America: Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States

South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela

There are 46 countries in Europe, including 27 countries that are part of the European Union, and Russia, whose territory extends across both Europe and Asia.

Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City

There are 14 countries in Oceania, ranging from Australia down to small Pacific island nations like Tuvalu and Nauru.

Australia, Fiji, Kiribati, Marshall Islands, Micronesia, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu