| Tropic of Cancer | 23° 26' N | Mexico, The Bahamas, Mauritania, Mali, Algeria, Niger, Libya, Egypt, Saudi Arabia, UAE, Oman, India, Bangladesh, Myanmar, China and Taiwan |
| Tropic of Capricon | 23° 26' S | Namibia, Botswana, South Africa, Mozambique, Madagascar, Australia, Chile, Argentina, Paraguay, Brazil, French Polynesia, New Caledonia, Fiji and Cook Islands |
| Arctic Circle | 66° 33' N | Norway, Sweden, Finland, Russia, USA (Alaska), Canada, Denmark (Greenland), and Iceland |
| Antarctic Circle | 66° 33' S | Territories on Antarctic claimed by Australia, France, New Zealand, Argentina, Chile and UK |
| Equator | 0° | Ecuador, Colombia, Brazil, Sao Tome e Príncipe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia and Indonesia |