Jupiter Sign Calculator
Your Jupiter sign is the zodiac sign Jupiter was in when you were born. Because Jupiter spends about a year in each sign, you share it with most people born within months of you. Enter your birth date to find it, its degree, and a reading of what astrologers link it with.
A sign you share with your birth year
Jupiter takes about 11.86 years to go around the Sun, so it spends roughly a year in each sign. Everyone born in the same twelve months or so tends to share a Jupiter sign, which is why astrologers treat it as part personal placement, part generational backdrop. What makes it personal is its house and its aspects to your other planets, which depend on your exact birth time and place.
Jupiter also turns retrograde for about four months every year. When a retrograde loop happens near a sign boundary, Jupiter can enter a sign, slip back into the previous one, and enter again a few months later. If you were born in one of those windows, the calculator shows the dates it used.
How your Jupiter sign is calculated
The calculator turns your birth date into Universal Time and computes Jupiter's geocentric ecliptic longitude in the tropical zodiac, with the planetary engine described on the method page. Jupiter moves at most about a quarter of a degree a day, so the birth date is enough.
It also lists when Jupiter entered and will leave that sign around your birth, so you can see where your birth falls in its year-long stay. Example: if Jupiter entered your sign in early spring and you were born in late autumn, your Jupiter sits in the later degrees of that sign.
What astrologers read in Jupiter
In astrology Jupiter is the planet of growth and meaning: where you look for wider horizons, what you believe in, how you learn, teach and travel, and where you tend to be generous or optimistic. Traditionally it rules Sagittarius and Pisces, is exalted in Cancer, is in detriment in Gemini and Virgo and in fall in Capricorn.
Older books called Jupiter the "greater benefic" and tied it to good fortune. We do not use it to predict money, luck or success: we read it as a theme of expansion, which also has a shadow side, the habit of overdoing things.
Jupiter sign and Jupiter return
Your Jupiter sign is where Jupiter stood at your birth; the Jupiter return is the moment Jupiter comes back to that exact degree, about every twelve years. The return has its own page: the Jupiter return calculator lists the dates and ages of each return.
Related tools and the tarot
See Jupiter's house and aspects in the full birth chart. Jupiter's slower partner is Saturn: the two are traditionally read as expansion and structure, and the Saturn return page shows Saturn's cycle. In the Golden Dawn tarot correspondences Jupiter belongs to the Wheel of Fortune, a card about cycles turning.
Questions
What is my Jupiter sign?
The zodiac sign Jupiter was in at your birth. Enter your birth date in the calculator above. Most people born within the same year share it.
What does Jupiter sign mean in astrology?
It is read as where you look for growth, meaning and wider horizons, and how you express generosity and faith. It is a symbolic theme, not a promise of luck or money.
How long does Jupiter stay in a sign?
About a year. With its yearly four-month retrograde, it sometimes enters a sign, backs out and re-enters, so a stay can be split into two parts.
When is my Jupiter return?
The Jupiter return calculator, a separate page, gives the exact dates and ages of every return; this page is about the sign itself.
More astrology calculators
Read your birth chart
Planets, houses and aspects from your birth date, time and place.
Calculate my chart