The four numbers behind your numerology score
A single percentage tells you almost nothing, so this calculator works from four numbers per person and compares each pair separately. Your Personality Number comes from the consonants in your name, run through the Pythagorean letter chart printed further down (A through I are 1 to 9, J through R repeat 1 to 9, S through Z run 1 to 8). Your Soul Urge comes from the vowels in the same name. Your Life Path comes from every digit of your full birth date added together and reduced. Your Attitude Number comes from the day and month alone. A fifth comparison uses just the day of the month you were each born on. Each pair is looked up in one fixed compatibility table, with a single exception: if your two Life Paths are one of the sixteen pairs in the curated Life Path table below, that table scores the Life Path row instead, and your result names it on the row. The results are weighted, and the planet friendship bonus is added last.
The zodiac reading sits alongside that total rather than inside it. Both scores come from the same four inputs, they are computed independently, and the page shows you both instead of blending them into one number that hides which system said what.
Personality and Soul Urge in relationships
The split between consonants and vowels is the oldest idea in name numerology: the sounds you make with a closed mouth are read as the outside of a person, and the open ones as the inside. So the Personality Number is traditionally read as the impression you make before anyone knows you, and the Soul Urge as what you are actually after.
The interesting case is when the two numbers disagree with each other. A Personality 8 with a Soul Urge 2 reads, in this tradition, as someone who arrives looking ambitious and wants closeness more than the room assumes. Comparing both numbers across two people, rather than just one, is why two couples with identical birth dates can come out of this calculator with different scores.
Life Path compatibility patterns
The Life Path is the number numerology leans on hardest. It is the reduced sum of every digit in your birth date, and it is read as the direction of a life rather than a description of a personality.
Traditional readings group the nine into three temperaments. Life Paths 1, 5 and 7 are read as independence-seekers who want room. Life Paths 2, 4 and 6 are read as partnership-builders who want closeness. Life Paths 3, 8 and 9 are read as goal-driven and needing something to build together. Matching temperaments is not automatically the stronger pairing: a 4 and a 5 are read as clashing on lifestyle in a way two 4s tend not to, and two 4s are read as able to settle into a rut a 5 would have broken. The reference table below gives the traditional reading for sixteen of the more commonly asked-about pairs.
You may have read about Master Numbers 11, 22 and 33, which some schools of numerology hold back from reduction rather than reducing to a single digit from 1 to 9. It is a genuine convention, and traditions differ on when to apply it.
Birthday numbers, mulank and daily chemistry
Your Birthday Number is the day of the month you were born, reduced to one digit. Someone born on the 14th reduces to 5, someone born on the 22nd reduces to 4. In Ank Jyotish the same digit goes by the name mulank, sometimes written as the root or radical number, and it is the number Indian numerology tends to lead with. Where the Life Path is read as direction, the mulank is read as behaviour: what you actually do on a Tuesday.
That makes it the number most likely to explain ordinary friction. Two people can have well-matched Life Paths and still argue about how a weekend gets planned, and in this tradition that argument lives in the mulank rather than the bigger numbers. It is scored separately here for exactly that reason.
Friendly, neutral and enemy numbers
Ank Jyotish does not stop at giving each root number a meaning. It also gives each one a list of the numbers it is read as friendly with, the ones it is read as neutral toward, and the ones it is read as being at odds with. Those lists follow the planets that rule the numbers, so this page reads them straight off the traditional Graha Maitri chart rather than from a separate list. The lists are not symmetrical, which is why this page checks both directions rather than one.
So the calculator takes your root number, looks up your partner's root number inside your friendly, neutral and enemy lists, then does the same the other way round. You get a plain verdict, friendly or neutral or enemy, in each direction, rather than a number you have to interpret. Two people whose root numbers are friendly both ways are read as finding routine easy together. A pair that lands friendly one way and enemy the other is read, in this tradition, as the more interesting case: one person tends to find the other easy going while the other has to work at it.
The Vedic number and planet connection
In Ank Jyotish, the Vedic branch of numerology, each digit from 1 to 9 belongs to one of the Navagraha. 1 belongs to Surya (Sun), 2 to Chandra (Moon), 3 to Guru (Jupiter), 4 to Rahu, 5 to Budha (Mercury), 6 to Shukra (Venus), 7 to Ketu, 8 to Shani (Saturn) and 9 to Mangal (Mars). Rahu and Ketu are the lunar nodes rather than physical planets: they are the north and south points where the Moon's path crosses the Sun's, and they extend the seven visible grahas to nine.
Once both Life Paths have a planet, the pair is looked up in the traditional Graha Maitri friendship chart, the same friend/neutral/enemy logic used in chart matching. Sun and Saturn are read as an enemy pair, which is why a Life Path 1 with a Life Path 8 loses points here. Venus and Mercury are read as friends, so a 6 with a 5 gains them. The swing is capped at ten points either way, because a planetary friendship is treated in this tradition as a background condition rather than the deciding factor.
Your two zodiac signs, and how the pair is scored
Your sun sign is fixed by the date you were born, which is the whole reason a zodiac reading can sit on a form that never asks for a birth time. Someone born on 3 August is a Leo whether they were born at dawn or at midnight. So the calculator takes each birth date, resolves it to a sun sign, and names both signs back to you before it says anything about the pair.
These are Western (tropical) sun signs, the ones almost everyone means by “my sign”, running from Aries in late March to Pisces in late February. That is a different system from the Vedic sidereal sun sign, which is shifted by roughly 24 degrees and often lands a person one sign earlier. If you want the sidereal reading, the Sun Sign Calculator handles it. This page uses the Western signs because those are the signs the compatibility tradition on this page was written for.
The pair then gets its own percentage out of 100 and a written read of how the two signs are traditionally said to work together. Where the numerology score reads names and dates as arithmetic, the zodiac score reads element and quality: the four elements (Fire, Earth, Air, Water) are read as temperament, and the three qualities (Cardinal, Fixed, Mutable) are read as how each person handles change. Two Fire signs are read as easy company and short-fused. A Fixed sign with a Mutable sign is read as one person holding the plan while the other keeps rewriting it.
Because the two scores are computed independently, they sometimes disagree, and that is the useful part. A pair with clashing Life Paths and an easy sign match is not a contradiction to resolve, it is two traditions weighing different inputs. The page shows both numbers rather than averaging them into one that tells you less.
Why name-only calculators are unreliable
If you have used a love calculator that asks for two names and nothing else, the number it gave you was probably not computed from anything meaningful. The common implementations count shared letters, add ASCII codes, or seed a random number from the two strings. The giveaway is that many of them return a different result for the same two names on a second run.
A name genuinely can be reduced to numbers, which is what the Personality and Soul Urge calculations here do. But a name on its own leaves out the birth date, and the birth date is where the Life Path, the Attitude Number, the ruling planet and both sun signs come from. That is why this page asks for four inputs instead of two, and it is the honest reason it is slower to fill in than the calculators it sits next to in search results.
Numerology, astrology, and what each one can see
Numerology and astrology are not rivals, they are different inputs. Numerology reads names and dates. Astrology reads the sky at a moment and a place.
This page runs both as far as a birth date will carry them. From the dates alone it gets the numerology numbers, the Ank Jyotish ruling planets, both Western sun signs and the sign-pair compatibility read. What a date cannot give is anything that moves faster than a day: your Moon sign changes every two and a bit days, your ascendant changes every two hours, and your nakshatra and your houses depend on the exact minute and the exact place. None of those are computed here, and this page does not pretend otherwise.
If you want that layer, the Compatibility Checker compares both Moon signs and their nakshatras from full birth details, and Kundli Matching runs the 36-point Guna Milan. The sign-pair guides linked further down are written reads of all 78 combinations if you would rather browse than calculate.