Tarot birth card calculator

How the reduction works

There is one standard method and it is worth stating openly rather than hiding behind a button, because a calculator you cannot check is a calculator you have to trust. Take 14 June 1987 as the worked example.

1. Write the date out as three numbers

   The month, the day, and the full four digit year. 14 June 1987 is 6, 14, and 1987. Use the calendar date on your birth certificate rather than a date adjusted for a time zone, because the method works on the written date.

2. Add all three together

   Six plus fourteen plus one thousand nine hundred and eighty seven is 2007. This first total is always a four digit number and is never a card by itself, which is why the next step exists.

3. Add the digits of that total, and keep going until it is 22 or less

   Two plus zero plus zero plus seven is 9. If the sum had come to 28 you would add again, two plus eight, and get 10. Stop as soon as the number is 22 or lower, because 22 is as high as the Major Arcana goes.

4. If you have landed on 10 or higher, reduce once more

   A number from 10 to 21 is a card in its own right and also reduces to a second one. Twenty reduces to 2, so 20 gives Judgement and The High Priestess. Nineteen is the one number that produces three cards, because 19 goes to 10 and 10 then goes to 1. A total of 10 takes that same last step and stops there, with two.

5. Read 22 as The Fool

   Twenty two is the only total that does not reduce. There are 22 Major Arcana and they are numbered 0 to 21, so a total of 22 wraps to the card numbered zero and you have one birth card rather than two.

That date gives a single card. Six plus fourteen plus 1987 is 2007, and two plus zero plus zero plus seven is 9, which is The Hermit. A date that reduced to 20 instead would carry two: Judgement and, reducing two plus zero, The High Priestess.

How birth cards fall, counted

Nearly every page on this subject opens by telling you that most people have two birth cards. Run the reduction over every date from 1925 to 2025, which is 36,890 of them, and that turns out to be false. 54.4% of dates give a single card, 40.4% give two, and 5.2% give three.

The reason is arithmetic rather than anything to do with the deck. For anyone born from the late nineteen fifties onward, the month, the day, and the year usually add to a total in the two thousands, and the digits of a number beginning with 2 sum into single figures far more often than the digits of one beginning with 19. Birth cards are distributed by the calendar, and the calendar changed in the year 2000.

The same count settles which cards are common. The Lovers is the most frequent first card at 9.5% of dates, with The Hierophant and The Chariot behind it. The rarest is The High Priestess, at 1.0%.

And one card in the Major Arcana never appears as a first birth card at all in that century: The Magician. Landing on it would require a total whose digits sum to exactly 1, which no plausible birthday produces. It arrives underneath a higher card instead, on 4,098 dates in the century, 11.1% of them: 2,162 reduce to Wheel of Fortune, which carries it as a second card, and 1,936 reach The Sun, which passes through Wheel of Fortune on the way down and is the only shape that gives anyone three. If The Magician is yours, it arrived the hard way.

What it means to have two

The pair is more than a first choice and a runner up. The usual reading is that the higher card describes the pattern other people can see and the lower one describes what is driving it, which is why the pair so often reads as a cause and its expression. The Tower at 16 reducing to The Chariot at 7 can be read as a life of abrupt reversals underwritten by a will to keep steering; the same two cards in the other order would be a different claim, and the reduction only runs one way.

If you have one card, the number was small enough that it never split. That is no lesser result and, given the count above, a common one. It means the arithmetic landed inside the first nine cards, where the Major Arcana is at its most elemental, and you have one image to learn rather than two.

Where this comes from, honestly

This is numerology applied to a tarot deck. It is not something the Rider-Waite-Smith imagery asserts, and it is not in the older European tradition the deck descends from. The method as it is used today was popularized in the twentieth century, notably by Angeles Arrien and by Ruth Ann and Wald Amberstone at The Tarot School, and the reason every calculator agrees is that they are all running the same modern convention rather than recovering an old one.

We say so because the rest of this site is careful about the difference between what a card's picture shows and what somebody later decided it means, and a calculator is no reason to stop being careful. What a birth card is good for is narrow and useful: it hands you one Major Arcana card to know properly. Learning one card thoroughly is a far better way into a deck of seventy-eight than skimming all of them, and this is as good a way of picking one as any.

Birth card, year card, card of the day

Three things get confused with each other. A birth card is fixed for life and comes from your date of birth. A year card swaps the birth year for the current one and so changes every birthday, which makes it a different calculation with a different purpose. A card of the day is drawn rather than calculated and is not about you at all: it describes the day in front of you.

This page does the first of the three. If what you want is a card to read against today rather than against your life, the daily draw is the one to use, and it deals from all seventy-eight rather than from the twenty-two.