Chaldean Name Compatibility Calculator
Calculate compatibility between two names using the ancient Chaldean numerology system. Compare name vibrations for relationships, business partnerships, or brand alignment.
Did this tool work for you?
How to use this calculator
- 1
Type a name or full name in each box. Each must contain at least one letter from A to Z.
- 2
Letters are converted with the Chaldean letter table (values 1 to 8, never 9), added together and reduced to one number, stopping early at 11, 22 or 33.
- 3
The gap between the two name numbers selects one of four scores: 85, 80, 72 or 65 percent.
- 4
The Combined Vibration row adds the two name numbers and reduces them. It is shown for interest and does not change the percentage.
Frequently asked questions
Which letter values does the calculator use?
Eight values, 1 to 8, spread over the alphabet: A, I, J, Q and Y are 1; B, K and R are 2; C, G, L and S are 3; D, M and T are 4; E, H, N and X are 5; U, V and W are 6; O and Z are 7; F and P are 8. The digit 9 is never assigned to a letter.
What happens to spaces, hyphens, digits and accented letters?
They add nothing. Only plain A–Z letters count, in either case, so “anna” and “Anna” match while “José” is summed as J, O and S with the é skipped. If neither entry contains a letter the calculator asks for letters instead of showing a score.
How is the percentage chosen?
From the difference between the two name numbers. A gap of 0 gives 85%, a gap of 1 or 2 gives 80%, a gap of 3 or 4 gives 72% and a gap of 5 or more gives 65%. The meanings of the numbers play no part in the score.
Why do I only ever see 85, 80, 72 or 65?
The scoring rule has four outcomes by design. Two very different pairs of names can therefore return the same figure, and the percentage cannot be read as a fine-grained measure of anything.
How are master numbers 11, 22 and 33 handled?
They are shown as calculated, but when the gap is worked out they count as 2, 4 and 6. A name that comes to 22 compared with a name that comes to 4 therefore has a gap of 0 and scores 85%.
What is the Combined Vibration row?
The two name numbers added together and reduced again, with a one-line description from a short list. For Emma (5) and James (5) it is 10, reduced to 1. It is informational only and has no effect on the percentage.
Will the same two names score differently on the Pythagorean name calculator?
They can. Emma and James come to 5 and 5 here and score 85%, while the Pythagorean letter table gives them 5 and 3 and a lookup score of 90%. The differences come from the letter table and the scoring rule, not from either result being more correct.
Does the percentage say anything about two real people?
No. Chaldean numerology is a belief-based tradition without scientific validation, and this score is the output of a four-step rule applied to spelling. It says nothing reliable about a friendship, relationship or business partnership and should not be used to make decisions about one.
Chaldean Name Compatibility Calculator — letter values, name numbers and a four-level gap score
How to use the chaldean name compatibility
Use this chaldean name compatibility to mpatibility between two names using the ancient chaldean numerology system. Enter your name or date of birth above and the result appears instantly. No registration needed.
How the chaldean name compatibility calculates your result
The chaldean name compatibility uses the Pythagorean system — the most widely used numerology method in the West. Letters are assigned values A=1 through I=9, then cycling back. Numbers are summed and reduced to a single digit (or master numbers 11, 22, 33). This gives a stable, repeatable result tied to your birth data or name.
How to interpret your result
Numerology is a self-discovery system, not a prediction method. Think of the chaldean name compatibility as a mirror — it reflects patterns and tendencies that may resonate with your experience. Many people use it alongside astrology, personality tests, and journalling as part of a broader self-awareness practice. Results are instant and free.
The letter table behind each name number
Each letter from A to Z is mapped to a value between 1 and 8 using the table below, and the digit 9 never appears. The code ignores case and drops anything that is not a plain A–Z letter, so spaces, hyphens, digits and accented characters contribute nothing. It adds the values for the whole entry and reduces the total to one digit, stopping early at 11, 22 or 33. A full name is therefore one combined number, not a first-name and surname pair. Anna and anna give the same result, but Ana is a different spelling and comes to a different number.
| Value | Letters |
|---|---|
| 1 | A, I, J, Q, Y |
| 2 | B, K, R |
| 3 | C, G, L, S |
| 4 | D, M, T |
| 5 | E, H, N, X |
| 6 | U, V, W |
| 7 | O, Z |
| 8 | F, P |
How the percentage is picked
Once both names are reduced, the tool takes the difference between the two numbers, with 11, 22 and 33 counted as 2, 4 and 6 for this step. It then maps that gap onto four possible scores. The meanings of the numbers are ignored; only distance on a number line is measured, so 1 and 9, eight apart, count as far apart. A separate Combined Vibration row adds the two name numbers, reduces the total and shows a short description, but it never touches the percentage.
| Gap | Score |
|---|---|
| 0 | 85% |
| 1 or 2 | 80% |
| 3 or 4 | 72% |
| 5 or more | 65% |
Worked examples
Names were typed exactly as shown. Emma and James each add up to 14, so both reduce to 5 and the gap is zero. Maria Lopez includes a space, which the code removes before adding. Adding or dropping a surname changes the sum, so trying your own spellings is the quickest way to see how fragile the figure is.
| Names | Name numbers | Gap | Score | Combined |
|---|---|---|---|---|
| Emma / James | 5 and 5 | 0 | 85% | 1 |
| Ana / Mia | 7 and 6 | 1 | 80% | 4 |
| Maria Lopez / Tom | 3 and 6 | 3 | 72% | 9 |
| Leo / Zoe | 6 and 1 | 5 | 65% | 7 |
Chaldean versus Pythagorean on the same names
The Pythagorean name calculator on this site assigns letters in alphabetical runs of 1 to 9 instead. Run through it, Emma and James become 5 and 3, and its table returns 90%, whereas this page gives 5 and 5 with 85%. Neither is the right answer. Each is arithmetic on a different letter table with a different scoring rule, which is why two names can land in different places depending on the page.
Limits of the score
Chaldean numerology is a traditional, belief-based practice and has not been scientifically validated. With only four possible outputs, the percentage cannot describe a friendship, relationship or business partnership, and it is better treated as a curiosity about spelling than as guidance. If a field has no A–Z letters, the calculator asks you to enter letters instead of reporting a score.
Learn more from an authoritative source:
WikipediaParent-Child Compatibility Calculator
Calculate numerological compatibility between parent and child using Life Path numbers. Understand your child's nature, parenting strengths, and potential friction points.
Birth Date Numerology Analysis
Full numerology reading from your date of birth only — Life Path, Birth Number, Personal Year, and life cycle analysis. No name needed.
Name Correction Calculator
Find out if your name's numerology number matches your desired target number. Get practical spelling suggestions to align your name's energy using the Pythagorean system.
Birth Date Compatibility Calculator
Compare two birth dates to calculate numerology compatibility. Get life path numbers, a compatibility score, and a detailed interpretation of the relationship energy.
Brand Name Numerology Calculator
Calculate the numerology number of any brand name using Pythagorean or Chaldean system. Discover your brand's core energy, personality traits, and lucky brand colors.
Domain Name Numerology Calculator
Calculate the numerology number of any domain name. The calculator automatically strips www. and the TLD to reveal the core domain energy and website advice.
Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →