The important parallels of latitudes are:
- The equator (0°)
- The North Pole (90°N)
- The South Pole (90° S)
- Tropic of Cancer (23½° N) in the Northern Hemisphere.
- Tropic of Capricorn (23½° S) in the Southern Hemisphere.
- Arctic Circle at 66½° north of the equator.
- Antarctic Circle at 66½° south of the equator.