Equator, Tropic of Cancer and tropic of Capricorn passes through:

The Tropic of Cancer passes through 17 countries. Starting at the prime meridian and moving eastwards:

Algeria, Niger, Libya, Egypt, Saudi Arabia, United Arab Emirates, Oman, India, Bangladesh, Myanmar, China, Republic of China (Taiwan), Mexico, Bahamas, Morocco, Mauritania, and Mali.

In Ocean it passes through:

Red Sea, Indian Ocean, Taiwan Strait, Pacific Ocean, Gulf of California, Gulf of Mexico, Atlantic Ocean.

Starting at the Prime Meridian and heading eastwards, the Tropic of Capricorn passes through:

Namibia, Botswana, South Africa, Mozambique, Madagascar, Australia, Chile, Argentina, Paraguay, Brazil

In Ocean it passes through:

Atlantic Ocean, Indian Ocean, Coral Sea, Pacific Ocean

The Equator passes through 13 countries:

Ecuador, Colombia, Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati.

In Ocean and Lakes it passes through:

Atlantic Ocean, Indian Ocean, Karimata Strait, Makassar Strait, Gulf of Tomini, Molucca Sea, Halmahera Sea, Pacific Ocean