Arithmetic on a fixed 52-card structure. You can check it.

Your birthday maps to one playing card in a 52-card deck. Cardology is that fixed map: a mirror you can check, not tarot, not cardiology, and not a forecast. The calculator is free.

Which card were you born under?

Your birthday adds up to one card. Same date, same card, every time.

Calculated here. Never stored.

How do I find my birth card?

Enter month, day, and year above. Month and day pick the card; the year does not change it. The same birthday always returns the same playing card.

The full chart is on the birth card calculator. All 52 meanings are on the birth card index. The system is what Cardology is. Two cards together: Cardology compatibility.

One Question Reading · $13 · about a minute

Ask the one thing
you keep circling.

Your birthday picks the cards. Your question picks the reading. About 600 words on where you are standing, written so plainly you will think you wrote it, and three things to keep an eye out for in the next few weeks. A mirror, not a forecast.

$13
One question, written for you.about a minute · no subscription
  1. 01

    Your card, on your question

    The number is the action, the suit is the area. How your card tends to handle this exact kind of decision, and where it slips.

  2. 02

    This year’s cards

    The Long Range card that keeps pulling your attention. The Pluto card, what the year asks, and what it pays.

  3. 03

    Three things to watch for

    Concrete signals for the next few weeks, each tied to a card. You check them off yourself.

Read the full sample, then ask yours

Prepared automatically from your cards and question. Usually ready in about a minute. Reply to your receipt if you need help.

From the journal

Get to know your cards.

A few good places to start. Read a little, then bring it back to your own life.

How to read your Birth Card

Explore its themes as questions to reflect on, with room for your own experience.

Read the article

How your 52-day chapters work

Get to know the seven planetary periods that give your birthday year its structure.

Read the article

Birth Card or Ruling Card?

Understand what each brings to a reading and how to read the two together.

Read the article
Browse all articles

Keep exploring

Follow your curiosity.

Start with one card, a connection, or the basics. There’s plenty to discover for free.