The World's Major Religions Explained: A Complete Comparative Guide

The world's major religions are usually counted as a handful of large traditions: Judaism, Christianity, Islam, Hinduism, Buddhism, and Sikhism, alongside older or regionally rooted faiths such as Taoism, Confucianism, Shinto, Jainism, Zoroastrianism, and the Bahai Faith. Together they shape the lives of most people on earth. This guide explains what each one actually teaches: where it began, what it holds to be true, the texts it treasures, and the practices that hold it together. The aim is understanding, not ranking. No tradition here is presented as truer or better than another.

If you would rather explore visually or side by side, the World Religions map plots where these traditions took root, and the Compare Religions tool sets two faiths next to each other on beliefs, texts, and practices. You can also browse everything by theme on the topics page. What follows is the narrative version: the story and substance of each tradition in turn.

The Major Religions at a Glance

According to the Pew Research Center's estimates for 2020, the global religious landscape breaks down in round numbers like this:

Christianity, about 2.3 billion people, the largest religion, centered on Jesus of Nazareth.

Islam, about 2.0 billion people and the fastest growing, centered on the Quran and the prophet Muhammad.

Hinduism, about 1.2 billion people, the oldest living major tradition, rooted in the Indian subcontinent.

Buddhism, roughly 625 million people, a path to liberation from suffering taught by the Buddha.

Sikhism, on the order of 25 to 30 million people, a monotheistic faith born in fifteenth century Punjab.

Judaism, about 15 million people, small in number but the historical root of the Abrahamic family.

The religiously unaffiliated, meaning atheists, agnostics, and those who claim no particular religion, now make up close to a quarter of the world by the same count, a reminder that this map keeps changing. Each tradition below links to its own reading room in the sacred text library, where you can read the primary sources for yourself.

Judaism: Covenant and the One God

Judaism is the oldest of the Abrahamic religions and, by most accounts, the earliest enduring monotheism. Its story begins with Abraham, who tradition holds was called by God to leave his homeland, and reaches a defining moment with Moses and the revelation at Mount Sinai. At its heart is the belief in one God who is the creator of all things and who has entered into a covenant, a binding relationship, with the people of Israel.

The central scripture is the Torah, the first five books of the Hebrew Bible, set within the larger collection called the Tanakh. Centuries of legal and ethical interpretation are gathered in the Talmud, the record of rabbinic discussion that shapes traditional Jewish life. The best known statement of Jewish faith is the Shema, drawn from Deuteronomy: hear, O Israel, the Lord our God, the Lord is one. Practice is woven into time and daily life through the weekly Sabbath, dietary laws, and a yearly cycle of festivals. You can read the sources in the Judaism library, and our explainers on what the Torah is and what the Talmud is go deeper.

Christianity: Incarnation and Grace

Christianity grew out of Judaism in the first century, centered on the life, death, and, in Christian belief, the resurrection of Jesus of Nazareth. Christians hold that Jesus is the Son of God and that in him God entered human history to reconcile humanity to himself. Salvation is understood as a gift of grace received through faith, not something earned.

Christian scripture is the Bible, comprising the Old Testament, largely shared with the Hebrew scriptures, and the New Testament, whose four Gospels recount the life and teaching of Jesus. Most Christians affirm the Trinity, the belief that the one God exists as three persons: Father, Son, and Holy Spirit. The tradition long ago branched into Roman Catholic, Eastern Orthodox, and Protestant families, which differ on authority, ritual, and church structure while sharing the core creed. Worship commonly centers on baptism and the Eucharist, the sharing of bread and wine. The Christianity library holds the texts, and Jesus's own summary of the ethical life is explored in our piece on the Sermon on the Mount.

Islam: Submission to the One God

Islam arose in seventh century Arabia through the prophet Muhammad, whom Muslims regard as the final messenger in a long line that includes Adam, Abraham, Moses, and Jesus. The word Islam means submission, the peaceful surrender of one's life to the will of the one God, called Allah in Arabic. Muslims believe the Quran to be the literal word of God, revealed to Muhammad over some twenty three years.

The most concentrated statement of the faith is tawhid, the absolute oneness of God, who has no partner and no equal. Practice rests on the Five Pillars: the declaration of faith, five daily prayers, almsgiving, fasting during Ramadan, and the pilgrimage to Mecca for those able to make it. The two largest branches, Sunni and Shia, divide chiefly over the question of legitimate leadership after Muhammad. Explore the Islam library, or read our guides to the Five Pillars and the Quran.

Hinduism: One Reality, Many Paths

Hinduism is the oldest of the major living religions and, unlike the others here, has no single founder or founding moment. It is better understood as a vast family of related traditions that developed over thousands of years in the Indian subcontinent. Its earliest scriptures are the Vedas, followed by the philosophical Upanishads, the epics, and the beloved Bhagavad Gita.

Behind Hinduism's many gods lies a recurring conviction that there is one ultimate reality, Brahman, which can be approached through many names and forms. Core ideas include atman, the deepest self; karma, the moral law of cause and effect; samsara, the cycle of rebirth; dharma, one's duty and right way of living; and moksha, liberation from the cycle. Because the tradition is so broad, individual Hindus may be devoted to a single deity, revere many, or focus on the formless absolute. Visit the Hinduism library, and see our explainers on the Bhagavad Gita and the meaning of karma.

Buddhism: The End of Suffering

Buddhism began with Siddhartha Gautama, the Buddha, who lived in northern India roughly two and a half thousand years ago and taught a path to freedom from suffering. Its foundation is the Four Noble Truths: that life involves suffering, that suffering arises from craving, that suffering can cease, and that the way to its cessation is the Eightfold Path of ethical conduct, mental discipline, and wisdom.

Distinctive Buddhist teachings include impermanence, the claim that nothing is fixed or lasting, and non-self, the analysis that there is no permanent, unchanging soul behind experience. The goal is nirvana, the extinguishing of craving and release from the cycle of rebirth. Notably, Buddhism does not center on a creator God, which sets it apart from the Abrahamic faiths. Its major streams are Theravada, Mahayana, and Vajrayana. Read more in the Buddhism library and our profile of who the Buddha was.

Sikhism: One God, Devotion, and Service

Sikhism was founded by Guru Nanak in fifteenth century Punjab and shaped by a line of ten human Gurus. It teaches devotion to one formless God, the equality of all people, and the rejection of empty ritual and caste distinction. After the tenth Guru, spiritual authority passed to the scripture itself, the Guru Granth Sahib, which Sikhs treat as their living Guru.

Sikh life is marked by honest work, remembrance of God through meditation on the divine name, and generous service to others. One vivid expression of this is the langar, the free community kitchen attached to every Sikh temple, where anyone of any background is fed as an equal. Explore the Sikhism library to read from the Guru Granth Sahib.

The Abrahamic Family and the Dharmic Family

Scholars often sort these traditions into families that share deep structural features. The Abrahamic religions, Judaism, Christianity, and Islam, all trace their spiritual lineage to Abraham. They are strictly monotheistic, understand history as a line moving toward a final purpose, honor prophets, and center on revealed scripture. Their disagreements are real and consequential, yet the family resemblance is unmistakable.

The Dharmic religions, Hinduism, Buddhism, Jainism, and, by geography and some shared vocabulary, Sikhism, arose in the Indian subcontinent and tend to share concepts such as dharma, karma, and rebirth, even as they interpret them very differently. Sikhism is a special case: Indian in origin yet firmly monotheistic in a way that resembles the Abrahamic emphasis on one God. For a closer look at where these families overlap ethically, see shared values across world faiths.

East Asian and Ancient Traditions

Several major traditions sit outside those two families. Taoism, rooted in the Tao Te Ching, teaches harmony with the Tao, the natural way of things, and prizes wu wei, effortless action that does not force outcomes. Confucianism, drawn from the teachings of Confucius, is less a theology than a moral and social vision built on virtue, learning, and right relationships within family and society. Shinto, the indigenous tradition of Japan, honors the kami, the countless spirits present in nature, ancestors, and place, and is expressed more through ritual and shrine than through a fixed creed.

Jainism, an ancient Indian faith, holds that the universe is eternal and uncreated and makes nonviolence, ahimsa, the highest principle, extending compassion to all living beings. Zoroastrianism, founded by the prophet Zarathustra in ancient Persia, worships Ahura Mazda, the one wise Lord, and frames existence as a struggle between good and evil; it is often described as one of the earliest monotheisms. The Bahai Faith, which emerged in nineteenth century Persia, teaches the oneness of God, the essential unity of the great religions, and the unity of humankind. Read further in the Taoism, Confucianism, Shinto, Jainism, Zoroastrianism, and Bahai libraries, and see our explainers on the meaning of the Tao and Zoroastrianism as an early monotheism. The BBC's religion guides offer solid, concise overviews of each as well.

Why These Are Called the World Religions

The phrase world religions is a modern category, and it is worth knowing its limits. It usually gathers the traditions large enough, old enough, and geographically spread enough to have shaped whole civilizations. That framing is useful, but it can quietly leave out a great deal: the many indigenous and folk traditions of Africa, the Americas, Asia, and the Pacific, which together account for hundreds of millions of people, as well as newer movements and countless local practices. The World Religions map and the wider sacred text library reach beyond the headline six for exactly this reason.

Counting adherents is also inexact. Figures come from censuses, surveys, and estimates that define religious identity in different ways, so the numbers should be read as careful approximations rather than a precise tally. The point of the category is not to rank or rigidly bound the traditions but to give a shared starting vocabulary for a conversation that, honestly told, is far richer and messier than any single list. For concise, tradition by tradition overviews from an independent source, the BBC's religion guides and the Pew Research Center's religion research are both reliable.

What the Traditions Share, and Where They Differ

Set side by side, these faiths do share certain instincts. Most take ethics seriously, ask their followers toward compassion and self-restraint, gather people into community, set apart sacred time, and treasure sacred texts or teachings. Most also point beyond ordinary life toward something greater, whether a personal God, an ultimate reality, or a state of liberation.

But it would be a mistake to conclude that they are all saying the same thing in different words. They disagree, and profoundly, about the nature of the divine, whether it is one, many, or not a god at all; about the self and what survives death; about whether the goal is salvation, liberation, or harmony; and about whether time moves in a line toward an end or turns in cycles. For two illustrations of how the traditions can converge on an instinct while resting on very different foundations, see how they treat the question of death and how the ethic of reciprocity recurs in the Golden Rule across seven traditions. Understanding a religion well means holding both truths at once: the genuine common ground, and the real distinctiveness that each tradition would not want dissolved.

How to Keep Reading

This guide is a map, not the territory. The most rewarding next step is to read the traditions in their own words.

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Explore Further

- Sacred Text Library, browse passages from more than twenty traditions, free

- Compare Religions, set any two faiths side by side on beliefs and practice

- Recommended Books and Resources, handpicked reading for sincere seekers

- Daily Sacred Verse, one passage from the world's traditions, every day