Home / Tools / Mercury sign
Free tool

Mercury Sign Calculator

Enter your birth date and, if you know it, your birth time to find your Mercury sign: the sign Mercury was travelling through when you were born. Mercury shapes how you think, learn and put things into words. It is computed from real astronomy in your browser.

Mercury never strays far from the Sun and moves through a sign in a couple of weeks, so its sign is usually the same all day. A birth time only matters on the rare day Mercury is changing signs, when the result could be the neighbouring one.

How this works. Your Mercury sign is calculated from real astronomy (the same engine used inside the Alya app), using the tropical zodiac. Your details stay in your browser and are only used to compute the position of Mercury. No birth place is needed here: Mercury's sign does not change with location, so this tool uses a neutral reference point and your result is unaffected.

For entertainment and reflection. Astrology is a symbolic tradition, not a science. This result is grounded in the real position of Mercury, but its meaning is interpretive and is not medical, psychological, legal or financial advice.