Chaldean Numerology Calculator

How Chaldean Numerology Works

Chaldean numerology is the older of the two Western systems. The Pythagorean method numbers the alphabet in order (A=1 to I=9, then round again); the Chaldean method, which Cheiro set out in his 1926 Book of Numbers, gives each letter a value from 1 to 8 according to its sound, and never uses 9, which it treats as a complete, sacred number that belongs to no letter.

• The name you use. Chaldean reads the name people actually call you, signatures included, not the full name on a birth certificate. A married name, a nickname or a stage name each has its own number.
• Compound before single. The letters of a name add to a total such as 23 or 31. That two-digit compound number is read first, from Cheiro's table of 10 to 52, and only then reduced to a single digit. Two names with the same single number can carry very different compounds.
• Each word on its own. A first name, a surname and the whole name are all read, because people use them separately.
• Birth number. The day of the month you were born is the number you cannot change. Cheiro's advice was to use a form of your name whose number agrees with it.

Chaldean Numerology Chart

Letter values in the Chaldean system. There is no column for 9.

Worked example: CHEIRO is C3 + H5 + E5 + I1 + R2 + O7 = 23, the Royal Star of the Lion, which reduces to 5. A Pythagorean reading of the same name gives 3 + 8 + 5 + 9 + 9 + 6 = 40, a 4: a different number, which is why the two systems should never be mixed in one reading.

Compound Numbers 10 to 52

Cheiro's readings of the compound numbers, in our words. A total above 52 is added once more (68 becomes 14) until it falls inside the table; a name that adds to less than 10 has only its single number.

Chaldean vs Pythagorean Numerology

Both systems turn letters into numbers; they disagree on which numbers, which name and what to keep. Pythagorean assigns 1 to 9 in alphabet order, reads the full birth name, splits it into Expression, Soul Urge and Personality numbers (all letters, vowels, consonants) and keeps 11, 22 and 33 as master numbers. Chaldean assigns 1 to 8 by sound, reads the name in use, keeps the compound number as a reading in its own right and reduces everything else to a single digit.

For the Pythagorean numbers of your full birth name, use the Pythagorean name numerology calculator; for the Life Path and the other numbers that come from the birth date alone, the Life Path number calculator.

Lo Shu Grid Calculator

The Lo Shu grid places the digits of your date of birth on the Chinese magic square, where every row, column and diagonal adds to 15. Indian numerologists read it alongside the Chaldean numbers because both work from the same date. Enter your birth date in the calculator above and the grid is drawn for you, with its arrows.

Kua Number Calculator

The Kua number comes from Eight Mansions feng shui, not from numerology, but it uses the same birth date, so the calculator above gives it when you choose the male or female formula. It sorts everyone into the East group (Kua 1, 3, 4, 9) or the West group (Kua 2, 6, 7, 8) and names four lucky directions to face, sleep and work toward, and four to avoid.

• Year first. The feng shui year starts at Li Chun, around February 4. Born on January 20, 1990? Your Kua year is 1989.
• Men: add the last two digits of the year, reduce to one digit, subtract from 10 (from 9 if born in 2000 or later). A 5 becomes 2.
• Women: add the last two digits, reduce, add 5 (6 from 2000 on), reduce again. A 5 becomes 8.

Success is the direction to face at a desk; health is where the top of the head points in bed; love is for the bedroom and the front door where possible; growth is the direction for study. The four unlucky directions (mishaps, five ghosts, six killings and total loss) are the other four of the compass, and the calculator lists them for your number.

Frequently Asked Questions