Who is the most compatible with who at your school, your family, or your circle of friends? Who should try to date who? Why do those two always have conflict? Or get along so well? Those questions are all too easy to figure out with this tool.

Use JSON! Also to backup your input!


  1. It is recommended users save input data off-line in JSON in Word or Notepad to prevent having to fill in all the names each and every time. Do this BEFORE clicking on the calculations, just in case.

  2. Don't be scared of the word "JSON". It's easy after a few tries. Adding or taking out names directly via the JSON file actually is a thousand times easier, quicker and fault-proof. I NEVER use the form below. I only use the JASON field to copy-paste the data in.

  3. Another tip is to use the "Close" button once you are looking at the generated table in full-screen mode. Do NOT use the browser's "back" button. You will lose everything not backed up in JSON if you do!

  4. Standard practice is that you only change the "y" when an "ij"-combination is not pronounced as "y". As an example, a last name as "van der Heijden" in the Netherlands standard is interpreted as "van der Heyden" in numerology. You can spell "Heijden", because the calculator picks it up as "y" anyway - unless you toggle the button or put a gap in between the "i" and "j" in the JSON form. We could have a debate about a name as "Meiji", so in that case a user can manually read the "i + j", as in "Mei-ji", instead of "Meyi". In any case, the Y button makes it clear to everyone how a "i + j" combination is read.

  5. For a little additional information on group analyses, visit the FAQ.
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Last name
Full birth name
How to read "IJ"
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