Every letter carries a value. Add them and you get the Expression number; the vowels alone give Soul Urge, the consonants give Personality. The two systems below assign different values to the same letters, which is why they disagree - both are shown.
Your name and date
Remembered on this device only.
The three name numbers come from the letters. The date is needed for the birth-date numbers shown alongside them.
Calculator facts
Your name, turned into three numbers
Pythagorean and Chaldean, your choice
The letter-by-letter working is shown below
Your name is not saved
The calculation
One name, split into vowels and consonants.
Every letter is given a number. Add all of them and you have the Expression. Add only the vowels and you have the Soul Urge. Add only the consonants and you have the Personality. That is the entire method — and it means the three numbers are not independent of each other.
Before any reducing is done, the raw vowel total plus the raw consonant total always equals the raw total of the whole name. That identity is exact, and it is the quickest way to check a calculation by hand: if your Soul Urge and Personality sums do not add up to your Expression sum, a letter has been missed.
The totals are then reduced by adding their digits until one digit is left — except for 11, 22 and 33, which are held as master numbers and left alone. So a raw total of 23 becomes 5, but a raw total of 11 stays 11. This is why two names that both “are a 5” may have arrived there from 14, 23, 32 or 41, which some practitioners treat as meaningfully different starting points.
Worked example: PRIYA, in both systems
Letter
Vowel or consonant
Pythagorean
Chaldean
P
Consonant
7
8
R
Consonant
9
2
I
Vowel
9
1
Y
Consonant
7
1
A
Vowel
1
1
Expression
All five letters
33 → kept as 33
13 → 4
Soul Urge
I + A
10 → 1
2
Personality
P + R + Y
23 → 5
11 → kept as 11
The check works in both columns: 10 + 23 = 33, and 2 + 11 = 13. The same five letters give an Expression of 33 in one system and 4 in the other, which is the clearest possible demonstration that a name number is a property of the table you chose, not of the name. A full name is calculated the same way — PRIYA is used alone here only to keep the arithmetic short enough to follow.
Two tables
Why Pythagorean and Chaldean disagree.
They are not two versions of one method. They are two unrelated ways of attaching numbers to letters, and there is no procedure for deciding between them.
Pythagorean runs in order
A is 1, B is 2, and so on to I at 9, then the count restarts: J is 1, K is 2. Every letter from A to Z has a value from 1 to 9, and the pattern is regular enough to reconstruct from memory. It is the system most Western books use, and the default here.
Chaldean follows sound
Letters are grouped by the sound they carry rather than their position in the alphabet, which is why the table looks arbitrary — F and P share 8; O and Z share 7. It assigns nothing to 9, held to be sacred, though 9 can still turn up as a total.
Neither is verifiable
Chaldean is older and its defenders argue that sound is the meaningful unit. Pythagorean is simpler and far more widely used. There is no test that distinguishes them, and a practitioner who tells you one is correct is stating a preference.
Pick one and stay with it
The practical rule. Comparing your name across both tables is interesting; switching systems until a number you like appears is not numerology, and the tradition itself does not sanction it.
The complete letter-to-number table for both systems, all twenty-six letters side by side, is on the numerology alphabet chart.
Honest limits
Which name, and what the number is worth.
Start with the name you use
The name in daily circulation is the one the tradition reads for how you are met. Your birth name, as recorded, is read as the underlying pattern. Neither cancels the other, and calculating both is more useful than choosing.
Spelling decides the answer
Sanjay and Sanjai, Priya and Priyaa, Mohd and Mohammed all produce different numbers, and transliteration from another script has no single correct form. This is the largest source of disagreement between two calculators fed the same person.
An added letter is not a strategy
Numerology describes patterns; it does not claim that changing a spelling causes events. Consultants who sell a name change with a promised outcome are selling something the tradition does not support.
Read it against the date
A name number is conventionally assessed in relation to the Mulank and Bhagyank, which is why both are shown in your result. A number read entirely on its own is the thinnest use anyone makes of this.
Common name numerology questions
Should I use my birth name or the name I use now?
Start with the name you actually use day to day, since that is the one in circulation. Calculating your birth name as well is a useful comparison rather than a competing answer.
What is the difference between Pythagorean and Chaldean?
Pythagorean assigns 1-9 to letters in alphabetical order. Chaldean assigns values by sound and never uses 9. They produce different numbers from the same name, and neither is a correction of the other.
Do I include my surname?
Include the full name you are asking about. If you go by a shortened form, calculate both and compare.
Will changing my name change my life?
Numerology describes patterns; it does not claim a spelling change causes events. Treat a name number as a lens, not a lever.