How to Calculate Birthday Numerology Compatibility

Updated January 25, 2022
woman looking at numbers to calculate birthday numerology compatibility

Much like astrology's sun signs, numerology's Life Path numbers reveal the core of your identity. This is the most important number when determining birthday numerology compatibility.

How to Calculate Your Birthday Number

Your birthdate compatibility numbers (Life Path numbers) are found by adding the birth month, day, and year. Calculating birthday numbers is simple. For example, suppose you were born on 12/16/1989.

  1. First, add the digits in the month of the year - 12 reduces to 3 (1 + 2= 3).
  2. Then do the same for the day - 16 reduces to 7 (1 + 6 =7).
  3. Do the same for the year - 1989 reduces to 9 (1 + 9 + 8 + 9 = 27) - (2 + 7 = 9).
  4. Total the resulting numbers and reduce again (3 + 7 + 9 = 19) - (1 + 9 = 10) - (1 + 0 = 1).
  5. The compatibility numerology number for this birthdate is number 1.
  6. Now do the same for the person of interest.

Numerology Compatibility Numbers

swirling numbers on an orange background

Numerology compatibility numbers consist of the numbers 1 to 9. Master numbers are often reduced to single-digit numbers for relationship compatibility. Generally, all the even numbers (2, 4, 6, and 8) and all the odd numbers (1, 3, 5, 7, and 9) are compatible--but that's not always the case.

Number 1

If you're a number 1, you're a born leader with an energetic and independent spirit. You are a resourceful problem solver who needs to try new things, go new places, and take risks. Number 1 is most compatible with numbers 3 and 5.

  • Number 3's optimistic, "live-for-the-day" nature complements your independent spirit.
  • Number 5's free-spirited and adventurous nature energizes you.

Number 2

If you're a number 2, you're extremely sensitive and are easily hurt. You're a natural mediator who loves to please others and make everyone happy. You're considerate, cooperative, persuasive, and excel when you work for the greater good. Number 2s are most compatible with numbers 6, 8, and 9.

  • Number 6 has a forgiving and protective nature; these are qualities you thrive on.
  • Number 8s make great colleagues, friends, or lovers who can help you fulfill your plans in life.
  • Number 9s will be adored for the way they help those who are less fortunate.

Number 3

If you're a number 3, you live for today and don't take responsibilities seriously. You have an optimistic, flirtatious, live and let live nature, and can find positive in everything and everyone around you. Number 3s are most compatible with numbers 1 and 5.

  • Number 1's spirited nature can create a relationship based on happiness and mutual pleasure.
  • Number 5 can add spice to your life and continually inspire you.

Number 4

If you're a number 4, you're determined, serious, practical, disciplined, and down to earth. You work hard and you expect the same from those around you. You're most compatible with numbers 2 and 8.

  • Number 2's sensitive and intuitive side complements your grounded and practical perspective.
  • Number 8 is earnest and grounded. Together, you create a very secure relationship.

Number 5

If you're a number 5, you seek freedom above all else. You're vivacious, have a restless on-the-go nature, and are continually seeking change and variety in your life. You're the most compatible numbers 1, 3, and 7.

  • Number 1's need for variety and change means this relationship will never be dull or complacent.
  • Number 3 and 5 communicate well and enjoy many of the same activities.
  • Number 7's penchant for exploring the unknown means you are able to discuss and explore the mystical and spiritual aspects of life.

Number 6

If you're a number 6, you're highly empathetic, philanthropic, and need to make life worthwhile for others. You're most compatible with numbers 2 and 9. However, 6 can match well with many numbers because you're so accommodating and compromising.

  • Number 2's empathy and their need to work for the greater good are easy for you to fall in love with.
  • Number 9's self-sacrificing, caring and empathetic nature is very compatible with yours.

Number 7

If you're a number 7, you're fascinated with and inclined toward spirituality and mysticism. You're continually seeking answers about the world and the unknown. You're the most compatible with numbers 3 and 5.

  • Number 3 has an original, good-humored, and artsy nature you can't help but love.
  • Number 5 inspires you due to their free-thinking and free-spirited nature.

Number 8

If you're a number 8, you're a natural leader and a fantastic visionary. Attaining money and wealth is often easy for you. You're the most compatible with numbers 2 and 4.

  • Number 2's sensitive and cooperative nature is very attractive to you.
  • Number 4 attracts you because they know how to get ahead in the world. This combination equals love and respect.

Number 9

If you're a number 9, you're an idealist who was born to make the world a better place and have an incredible ability to understand the human spirit. You are most compatible with numbers 3 and 6.

  • Number 3 has a powerful imagination and can keep you endlessly engaged in a variety of creative ways.
  • Number 6 has a caring and self-sacrificing nature that you'll find irresistible.

Numerology Compatibility

It's important to realize that a birthdate comparison for compatibility will only reveal if the life paths the two of you are on are compatible. Similar to astrological compatibility, numerological compatibility is complex. A numerologist will examine all the core numbers to better understand your true compatibility. However, comparing your life path numbers is an excellent place to start. If you want to know more about your birthdate compatibility, you can use this free love calculator.

How to Calculate Birthday Numerology Compatibility