Soulmate calculator by date of birth
Enter your date of birth to see which zodiac signs and life path numbers are traditionally your strongest matches. Add a second birth date to get a compatibility score for a specific person. It is free, and you do not need to give an email.
How the soulmate calculator works
The calculator uses two things your birth date gives you: your sun sign from astrology and your life path number from numerology. With one birth date, it lists the signs and numbers each tradition pairs with yours. With two birth dates, it scores the pair, weighting the sun signs at 60% and the life path numbers at 40%.
For sun signs, the score depends on how many signs apart the two people are. These are the classic astrological aspects. For one sign ranked against all 12, see the soulmate signs for every zodiac sign.
Prefer questions to birth dates? Take the free soulmate quiz to find your soulmate type.
| Signs apart | Aspect | Traditional reading | Score |
|---|---|---|---|
| 0 | Same sign | Quick understanding, shared blind spots | 80 |
| 1 | Neighboring signs | Different element and style, needs patience | 55 |
| 2 | Sextile | Compatible elements, easy and friendly | 85 |
| 3 | Square | Strong chemistry with friction | 50 |
| 4 | Trine | Same element, the most harmonious | 95 |
| 5 | Quincunx | Little in common, needs adjustment | 45 |
| 6 | Opposition | Magnetic and complementary | 80 |
For life path numbers, numerology sorts the numbers into three groups: 1, 5 and 7; 2, 4 and 8; 3, 6 and 9. Two numbers in the same group score 90, the same number scores 85, and numbers from different groups score 60. The master numbers 11, 22 and 33 are grouped with 2, 4 and 6.
Can you find your soulmate by date of birth?
No calculator can identify a specific person from a birth date. What your birth date does give you is a sun sign and a life path number, and astrology and numerology each have long traditions about which signs and numbers pair well. This calculator shows you those traditional matches so you know what to look for.
There is no scientific evidence that birth dates predict relationship success. Treat the result as a fun starting point, not a verdict on a real relationship.
Which zodiac signs are soulmates?
In traditional astrology, the strongest matches for a sign are the two other signs that share its element, plus the sign directly opposite it on the zodiac wheel.
| Sign | Birth dates | Element | Same element matches | Opposite sign |
|---|---|---|---|---|
| Aries | Mar 21 to Apr 19 | Fire | Leo, Sagittarius | Libra |
| Taurus | Apr 20 to May 20 | Earth | Virgo, Capricorn | Scorpio |
| Gemini | May 21 to Jun 20 | Air | Libra, Aquarius | Sagittarius |
| Cancer | Jun 21 to Jul 22 | Water | Scorpio, Pisces | Capricorn |
| Leo | Jul 23 to Aug 22 | Fire | Sagittarius, Aries | Aquarius |
| Virgo | Aug 23 to Sep 22 | Earth | Capricorn, Taurus | Pisces |
| Libra | Sep 23 to Oct 22 | Air | Aquarius, Gemini | Aries |
| Scorpio | Oct 23 to Nov 21 | Water | Pisces, Cancer | Taurus |
| Sagittarius | Nov 22 to Dec 21 | Fire | Aries, Leo | Gemini |
| Capricorn | Dec 22 to Jan 19 | Earth | Taurus, Virgo | Cancer |
| Aquarius | Jan 20 to Feb 18 | Air | Gemini, Libra | Leo |
| Pisces | Feb 19 to Mar 20 | Water | Cancer, Scorpio | Virgo |
How to calculate your life path number
Reduce the month, the day and the year of your birth to single digits, add the three results, and reduce again until you have one digit. If the total is 11, 22 or 33, stop there, because numerology treats those as master numbers.
Example for July 14, 1992. The month is 7. The day is 1 + 4 = 5. The year is 1 + 9 + 9 + 2 = 21, and 2 + 1 = 3. Then 7 + 5 + 3 = 15, and 1 + 5 = 6. The life path number is 6.
Soulmate calculator questions
Is the soulmate calculator free?
Yes. It runs in your browser, it is free to use as often as you like, and it does not ask for an email address.
Is a soulmate calculator accurate?
It accurately applies the traditional rules of sun sign astrology and numerology. Whether those traditions say anything true about a relationship is a matter of belief, and there is no scientific evidence that they do. Use it for entertainment.
Does my birth time matter?
Not for this calculator. It uses your sun sign, which depends only on your birth date. A full birth chart, with a moon sign and rising sign, needs your exact birth time and place.
What if I was born on a cusp?
Sun sign dates can shift by a day from year to year. If your birthday falls on the first or last day of a sign, check both signs and read both results.
What is the difference between this and a soulmate sketch?
The calculator tells you which signs and numbers tradition matches with yours. A soulmate sketch is a drawing of the person pictured as your match, delivered with a written Soulmate Story. The sketch is a paid product and the calculator is free.
See the face behind the numbers
A soulmate sketch and Soulmate Story for $37, delivered by email within 24 hours.
