Free tool
Mercury sign calculator
How you think, learn and talk, from your birth date alone.
Mercury sign calculator
Positions from Astronomy Engine, the same planet tables as the full chart. Nothing you type leaves your browser.
What your Mercury sign means
Your mind, speech and learning: that is what Mercury stands for in a birth chart. Mercury stays in a sign for two to three weeks, up to two months when it turns retrograde.
Mercury in the twelve signs
- Mercury in AriesYou think fast and say it at once: quick decisions, sharp debate and little…
- Mercury in TaurusYou think slowly and surely, and once your mind is made up it stays made up.…
- Mercury in GeminiMercury is at home: a quick, witty, many-sided mind that loves words, news,…
- Mercury in CancerYou think with your feelings and your memory; you remember everything and…
- Mercury in LeoYou speak with confidence and a sense of drama; a creative, persuasive mind…
- Mercury in VirgoMercury is at home and exalted: precise, analytical and practical. You spot…
- Mercury in LibraYou weigh both sides before you speak: diplomatic, fair-minded, good at…
- Mercury in ScorpioA probing, investigative mind that reads between the lines; you keep secrets…
- Mercury in SagittariusMercury is in its detriment: you think big about belief, travel and…
- Mercury in CapricornStructured, serious thinking with a plan; you say little, but what you say…
- Mercury in AquariusAn inventive, objective mind ahead of its time; you love science, new ideas…
- Mercury in PiscesMercury is in detriment and fall: you think in images and feelings. Intuitive…
Why the birth time matters
Mercury moves slowly, so the date alone is almost always enough. If Mercury changed sign on your birthday, the calculator says so and the time decides. The rising sign and the houses need the exact time and place: use the rising sign calculator.
Questions and answers
How do I find my Mercury sign?
Enter your birth date. The calculator works out where Mercury stood on that day.
Is the Mercury sign calculator free?
Yes. Everything on Sophiology is free and needs no account.