Numerology compatibility calculator
Two birth dates in, one score out of 10, and every step of the arithmetic underneath. Nothing is stored and there is nothing to sign up for.
There is no official method
Numerology is not a science. Nobody has shown that the digits in a birth date affect who you get on with, and we are not going to pretend otherwise.
Look up the same two dates on three sites and you will get three different answers. None of them will show you how they got there. There is no original text that settles it and no authority to appeal to.
So we did not derive our method. We chose it. Below is exactly what we chose, so you can argue with the parts instead of the whole thing.
A birth date gives you three numbers
Numerology reduces a number by adding its digits until one is left. That throws most of the date away. Three numbers survive, and they measure different things.
| Number | Built from | Also called |
|---|---|---|
| Life path | day + month + year | bhagyank |
| Birth day | the day of the month | mulank |
| Attitude | month + day | — |
A life path on its own has 12 possible values. All three together have 1,213 — about 101 times more to work with. That is why the score uses all three and not just the headline one.
They do not give the date back, and we are not going to pretend they do. Across the 22,280 real dates from 1950 to 2010, those combinations work out at about 18 birth dates each. The busiest is shared by 56.
How two numbers are compared
Each of the three components compares one number against one number, using the same six rules. They are tried in order and the first one that fits wins. The result always tells you which one it was.
1 · scores 8 · 3 of the 78 pairings
A master and the number it reduces to — 11 with 2, 22 with 4, 33 with 6. Same energy, different intensity
2 · scores 8 · 12 of the 78 pairings
The same number. Shared outlook, and shared blind spots
3 · scores 9 · 16 of the 78 pairings
The same group — 1·5·7, 2·4·8, 3·6·9
4 · scores 8 · 11 of the 78 pairings
The two complete a cycle: they add up to 9 or 10
5 · scores 6 · 10 of the 78 pairings
Both active or both receptive — both odd, or both even
6 · scores 5 · 26 of the 78 pairings
None of the above. The hardest ordinary case
| When | Score out of 10 | Pairings | |
|---|---|---|---|
| 1 | A master and the number it reduces to — 11 with 2, 22 with 4, 33 with 6. Same energy, different intensity | 8 | 3 |
| 2 | The same number. Shared outlook, and shared blind spots | 8 | 12 |
| 3 | The same group — 1·5·7, 2·4·8, 3·6·9 | 9 | 16 |
| 4 | The two complete a cycle: they add up to 9 or 10 | 8 | 11 |
| 5 | Both active or both receptive — both odd, or both even | 6 | 10 |
| 6 | None of the above. The hardest ordinary case | 5 | 26 |
Each rule shows its score and how many of the 78 life path pairings it accounts for.
Masters take the group of the number they reduce to. 11 sits with 2, 4 and 8 because it reduces to 2. It feels like a mental number. "Feels like" is not a rule, and we would rather have a rule.
The three things we measure
score = 50% life path + 25% birth day + 25% attitude
The life path carries half because it is the only one of the three built from the whole date. We chose those weights. Nobody handed them to us. All three are shown on every result with what they contributed, because a number with no working is just an assertion.
What the score can be
17 possible scores, from 5.0 to 9.0, in steps of a quarter.
We do not round. The weights are halves and quarters, so every score lands on an exact quarter. Rounding to one decimal would leave several sitting exactly halfway, and which way you break a tie is a choice rather than a fact — which is how a calculator ends up quietly disagreeing with itself about the same couple. 7.25 is the actual number, so we print 7.25.
Nothing scores 10 and nothing scores below 5.0. If a calculator has given you 94%, ask how many different answers it is able to produce.
How likely your pairing is
Between two random people the commonest pairing turns up about 1 in 40 times. The rarest — two life path 33s — is about 1 in 13,466. A spread of roughly 337 times.
This is the one number on the site that is a plain fact rather than a judgement. It falls out of the calendar and involves no opinion at all. Which is also why life path numbers are not evenly spread:
| Life path | Share of all birth dates |
|---|---|
| 5 | 11.1% |
| 3 | 11.1% |
| 1 | 11.1% |
| 7 | 11.1% |
| 8 | 11.1% |
| 9 | 11.1% |
| 6 | 10.3% |
| 4 | 8.1% |
| 11 | 6.5% |
| 2 | 4.6% |
| 22 | 3.0% |
| 33 | 0.9% |
Life path 2 is under half as common as life path 5, because 11 takes most of the dates that would otherwise reduce to 2. And 7 years between 1950 and 2010 produced no life path 33 at all — 1954, 1963, 1972, 1981, 1990, 1999, 2008. Nine years apart, every time.
What we don't do
- Pythagorean only. No Chaldean or Kabbalah. Both need sourcing we have not done, and a system built on guesswork is worse than no system.
- Dates, not names. Name numerology gives different answers depending which letter table a site uses, and most sites do not publish theirs.
- No percentage. A score out of 10, its working, and a word to go with it.
Check us
Every rule above is stated precisely enough to work out by hand. If you do that and get a different answer, tell us. We will either fix it or explain ourselves here.