Major religious groups

The 2020 global percentage of adherents by religion.
  1. Christianity (28.8%)
  2. Islam (25.6%)
  3. Unaffiliated (24.2%)
  4. Hinduism (14.9%)
  5. Buddhism (4.10%)
  6. Other religions (2.40%)

The world's principal religions and spiritual traditions may be classified into a small number of major groups, though this is not a uniform practice. This theory began in the 18th century with the goal of recognizing the relative degrees of civility in different societies, but this concept of a ranking order has since fallen into disrepute in many contemporary cultures.