MY STAR LETTER

Human Design

Human Design compatibility calculator

Enter two births to see how your Human Design charts meet: the channels you complete together, the ones you share and the centers you define only as a pair.

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Them

Free. Nothing leaves this device.

How the compatibility calculator works

It draws both Human Design charts on your device, then compares them channel by channel. A channel is a line between two centers in your chart, made of two gates; you define it when you have both gates.

Each channel the two of you complete falls into one of four kinds, the classic way of reading a Human Design connection chart:

  • Sparks (electromagnetic). Channels where you have one gate and they have the other. Together you complete something neither of you has alone: these are the pulls of attraction, and sometimes friction.
  • Shared channels (companionship). Channels you both have in full. You understand each other here without words, and you can simply be the same way side by side.
  • One leads (dominance). Channels one of you has in full and the other has no part of. The person without it learns that way of being from the other.
  • Give and take (compromise). Channels one of you has in full and the other has one gate of. The full channel tends to set the tone, which can take some give from the other.

It also lists the centers defined only when you are together: places where the two of you feel a steadiness neither has alone.

What you need

Both birth dates, birth times and birthplaces. Without a birth time the calculator uses noon and says so: the Moon moves fast, so some channels can change. Your details stay on your device.

Read your types together

Your types shape how you work as a pair. Read about each in

Generator, Manifesting Generator, Projector, Manifestor, Reflector and the five types guide.

Want your full chart read?

Send your birth details. We read your full chart and text you back the same day.

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Questions

How do I check Human Design compatibility?

Enter both birth dates, times and places in the calculator above. It shows the channels you form together, the channels you share and the centers you define only together.

What is an electromagnetic connection in Human Design?

One person has one gate of a channel and the other person has the other gate. Together the channel is complete. It is often felt as attraction, and sometimes as friction.

What is a companionship connection?

Both of you have the same full channel. You meet each other in the same way there, which feels easy and familiar.

Which Human Design types are most compatible?

Any two types can work well. Human Design looks at how two charts meet, gate by gate, rather than ranking types. The calculator shows where yours meet.

Do I need both birth times?

For an exact chart, yes. Without one, the calculator uses noon and flags that some channels may change.

Is this compatibility calculator free?

Yes. It is a free tool with no sign-up. Both births are calculated on your device and never sent anywhere.

Your connection, read for you

Tap Text us and pick Compatibility. Add both births, and we read your charts together and text you back the same day.

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We text you back the same day.

For reflection, never prediction.

Back to Human Design readings

Your Human Design reading

  1. Step 1. Tap Text us and pick Compatibility.
  2. Step 2. Add your name, birth date, birth time (or "don't know") and birthplace. They go into your text, and you tap send. Birth time makes it most accurate.
  3. Step 3. We read your chart, text you your reading and tell you how to pay. Astrology tools and AI help with the math.

What is Human Design?

A system that blends astrology with other traditions to describe how you are built to use your energy and make decisions.

Replies weekdays 6 to 9pm and weekends 10am to 4pm, Pacific. Birth details are only used for your reading and deleted 90 days after your last message. Readings are for reflection, never prediction.

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Don't know your type yet? Get your free chart, take the test or check your compatibility

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