Love Calculator by Date of Birth

No names needed: this love calculator by date of birth reads your two birthdays, finds your zodiac signs and life path numbers, and turns them into a love percentage.

Your love percentage will appear here.

How the love calculator by date of birth works

Each date of birth gives two things:

  • A zodiac sign, and with it an element: fire, earth, air or water.
  • A life path number from numerology: add every digit of the date until one digit is left. For example, 14 March 1998 → 1+9+9+8+0+3+1+4 = 35 → 3+5 = 8.

The love calculator by date of birth scores how well the two elements go together and how well the two life path numbers match, then averages the two into one love percentage.

Zodiac element compatibility

ElementSignsBest matched with
FireAries, Leo, SagittariusFire and Air
EarthTaurus, Virgo, CapricornEarth and Water
AirGemini, Libra, AquariusAir and Fire
WaterCancer, Scorpio, PiscesWater and Earth

Same-element pairs and friendly-element pairs (fire with air, earth with water) score highest. Opposite signs, such as Taurus and Scorpio, get a small bonus.

Life path number matches

In numerology some life path numbers are called natural matches. When your two numbers are a natural match, the birthday score rises; the same number twice scores well too, because you understand each other easily.

Life pathNatural matches
13, 5, 6
24, 6, 8, 9
31, 5, 6, 9
42, 7, 8
51, 3, 7
61, 2, 3, 9
74, 5
82, 4, 6
92, 3, 6

Birthdays, astrology and real life

Astrology and numerology are traditions, not science: studies have not found that star signs predict who falls in love or stays together. Still, many people love comparing signs, and a love calculator by date of birth is a fun way to do it. Your result also shows how many days apart you were born — a small fact that couples often enjoy.

Frequently asked questions

How does a love calculator by date of birth work?

It finds each person’s zodiac sign and numerology life path number from their birthday and scores how well the two pairs match.

Do I need the year of birth?

Yes. The year is used in the life path number, so enter the full date.

Which zodiac signs are most compatible?

Traditionally, signs of the same element, fire with air, and earth with water.

Is a birthday love calculator scientific?

No. Astrology and numerology are traditional systems. Use the result for fun.

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Formulas reviewed and page updated October 21, 2026.