Belief CalendarSubscribe

11 traditions

Religious traditions

Each with the subdivisions it recognises, in its own terms, and the observances we compute for it.

Christianity

around 2.4 billion

  • 11 denominations
  • 14 in 2026
  • 2 sourced
  • No central authority

Islam

around 1.9 billion

  • 3 branches
  • 9 in 2026
  • 3 sourced
  • No central authority

Hinduism

around 1.2 billion

  • 4 traditions
  • 11 in 2026
  • 7 sourced
  • No central authority

Buddhism

around 500 million

  • 3 traditions
  • 1 in 2026
  • 4 sourced
  • No central authority

Judaism

around 15 million

  • 7 movements
  • 10 in 2026
  • 1 sourced
  • No central authority

Sikhism

around 26 million

  • 5 traditions
  • 4 in 2026
  • 2 sourced

Bahá'í Faith

around 8 million

  • 11 in 2026
  • 2 sourced

Jainism

around 5 million

  • 2 traditions
  • 1 in 2026
  • 1 sourced
  • No central authority

Shinto

Not meaningfully countable

  • 2 in 2026
  • 1 sourced
  • No central authority

Taoism

Not meaningfully countable

  • 2 schools
  • 1 in 2026
  • 1 sourced
  • No central authority

Zoroastrianism

around 120,000

  • 2 communities
  • 3 in 2026
  • 2 sourced
  • No central authority

Adherent figures are rounded estimates and are cited on each tradition’s page. Two traditions carry no figure at all, because exclusive-adherence counts misrepresent how they are practised.