Numerology is the belief that numbers have hidden meanings and that numbers derived from a person's name and birth date can reveal character or foretell events. It draws on ancient traditions such as Pythagorean number philosophy, Greek isopsephy and Hebrew gematria, but modern popular numerology largely took shape in the early twentieth century. There is no scientific evidence that it works.
Numerology at a glance
| Also called | Arithmancy (older term) |
|---|---|
| Type | Divination; number symbolism |
| Ancient roots | Pythagorean philosophy; isopsephy; gematria |
| Word first recorded | English "numerology," early twentieth century |
| Main modern systems | Pythagorean (Western) and Chaldean |
| Scientific status | Considered a pseudoscience |
Ancient Roots
The idea that numbers carry meaning beyond counting is very old. In the sixth century BCE the followers of Pythagoras taught that number was the underlying principle of the cosmos, and they associated particular numbers with qualities such as justice, marriage or perfection. This outlook, described in the entry Pythagoreanism, deeply influenced later Western number symbolism, even though the numerology practiced today cannot be traced directly to Pythagoras himself.
Because ancient Greek and Hebrew letters also served as numerals, every word had a numerical value. Greeks called the practice of comparing these values isopsephy, and Jewish interpreters developed gematria as a method of scriptural interpretation, later important in Kabbalah. Arabic-speaking cultures used a comparable system known as abjad. An inscription of the Assyrian king Sargon II in the eighth century BCE is often cited as an even earlier example of linking a number to a name.
From Arithmancy to Modern Numerology
In medieval and Renaissance Europe, number symbolism was part of theology, architecture and magic. Christian writers found meaning in numbers such as three, seven and twelve, and occult philosophers like Cornelius Agrippa devoted chapters to the virtues of numbers. The English word arithmancy, divination by numbers, dates from the sixteenth century.
The word numerology itself is not recorded in English until the early twentieth century. The modern form of the practice, focused on personality and life path, developed in the United States and Britain in the same period. The American writer L. Dow Balliett published popular books on the vibrations of numbers in the early 1900s, and the palmist known as Cheiro popularized a system he described as Chaldean. Later authors expanded these methods into the detailed charts sold in countless books today.
How Numerology Is Practiced
Modern numerologists usually work with the numbers one to nine, plus certain "master numbers," commonly 11, 22 and sometimes 33, which are not reduced further. Multi-digit numbers are reduced by adding their digits together until a single digit remains, so that 1987 becomes 1+9+8+7 = 25, and then 2+5 = 7.
- Life path number: calculated from the full date of birth and treated as the most important number in a chart.
- Expression or destiny number: calculated from the letters of the full birth name.
- Soul urge number: calculated from the vowels of the name.
To convert letters into numbers, the widely used Pythagorean system assigns the values one to nine to the alphabet in order, repeating from J. The so-called Chaldean system uses the values one to eight in a different arrangement; despite its name, it has no demonstrated link with ancient Babylonian practice. Each number is then given traits, for example leadership for one or introspection for seven.
The Scientific View
Numerology is regarded by scientists as a pseudoscience. There is no known mechanism by which the letters of a name or the digits of a date could shape personality or events, and no controlled studies have shown that numerological readings predict anything better than chance. The results also depend on arbitrary choices, such as which alphabet, calendar or letter-number table is used.
Psychologists point out that numerological descriptions tend to be general enough to fit almost anyone, a pattern known as the Barnum or Forer effect, and that people naturally remember hits and forget misses. In science the word "numerology" is also used disparagingly for theories built on striking numerical coincidences rather than on evidence. Many people nevertheless use numerology as a tool for reflection or entertainment, much as others use astrology or tarot.
Numerology in Esoteric Tradition
Within Western esotericism, number symbolism remains central. The Hermetic Order of the Golden Dawn linked numbers to the sefirot of the Kabbalistic Tree of Life and to the cards of the tarot, whose Major Arcana are themselves numbered from 0 to 21. This is one reason numerology is often taught alongside tarot and astrology in modern New Age practice.
Readers interested in the wider background may consult the entries on gematria, Pythagoreanism and magic, which show how numbers were used in religious interpretation, philosophy and ritual long before the modern life path chart.
Curious to try a reading yourself? Our free psychic reading draws three tarot cards at random and interprets them for your question, with no email or signup. Want the evidence first? Read are psychic readings real?
Related entries
On The Mystica today: Wheel of Fortune tarot card
Frequently asked questions
How do you calculate a life path number?
Numerologists add together all the digits of a full birth date and reduce the total to a single digit, except for master numbers such as 11 and 22. For example, a date whose digits add up to 34 becomes 3+4 = 7. The number is then interpreted according to the traits assigned to it.
Did Pythagoras invent numerology?
Not in its modern form. The Pythagoreans taught that number underlies reality and gave symbolic meanings to numbers, which inspired later traditions. However, the name and birth date calculations used in popular numerology today were developed mainly in the late nineteenth and early twentieth centuries.
Is numerology scientifically proven?
No. Controlled studies have not shown that numerology predicts personality or events better than chance, and there is no known mechanism for it. Scientists classify it as a pseudoscience, and psychologists explain its appeal through effects such as the tendency to accept vague, general descriptions as personal.
Sources and further reading
This entry replaces an article from the original Mystica encyclopedia (online since 2001). It was rewritten from the sources above by The Mystica Editorial Team under our editorial standards. Last reviewed: September 30, 2026.