Zodiac Sign Finder
Find your Western zodiac sign (sun sign) from your birth date, along with its element, ruling planet and the traits traditionally linked to it. A fun staple of horoscopes and astrology.
How to use this calculator
- Enter your birth date.
- See your sun sign with its element, ruling planet and traits.
- Born on a cusp date? It may vary by a day depending on the year.
Formula used
Each of the 12 signs spans a roughly month-long date range. Your sun sign is simply the one your birthday lands in. Exact cusp dates can shift by a day between years because of how the calendar tracks the sun's position.
Example calculation
15 June falls in May 21 – Jun 20, so it's Gemini — Air element, ruled by Mercury.
A 21 June birthday sits right on the Gemini–Cancer cusp and can be either, depending on the year.
Sun signs and horoscopes
Your zodiac (sun) sign is the most familiar piece of Western astrology — the sign the sun was "in" when you were born, based on twelve date ranges around the year. It's the sign horoscopes are written for, and each carries an element (Fire, Earth, Air, Water), a ruling planet, and a bundle of traditional personality traits. As a cultural touchstone and conversation starter, it's endlessly popular and genuinely fun.
Honesty matters here too: astrology is a belief system, and there's no scientific evidence that the position of the sun at birth shapes personality or predicts events. The trait descriptions are broad enough that most people recognise themselves — a well-known psychological effect. None of that has to spoil the fun; millions enjoy their sign and horoscopes as entertainment and self-reflection. One real wrinkle worth knowing is the "cusp": if you're born on a boundary date, your sign can differ by a day depending on the year, so a birth-time chart is needed to be sure.
Why use this calculator?
- Find your star sign and its traditional associations.
- Know your element and ruling planet.
- A fun basis for horoscopes and compatibility games.
Frequently asked questions
What is my zodiac sign?
It's set by your birth date — the sign whose date range your birthday falls in. For example, 15 June is Gemini (May 21 – Jun 20). Enter your date above to find yours, with its element and ruling planet.
What does it mean to be born on a cusp?
A cusp is the boundary between two signs. If your birthday is on or near one, your sign can vary by a day depending on the year, because the exact changeover shifts slightly. A full birth chart using your time and place settles it.
Is astrology scientifically proven?
No — there's no scientific evidence that birth dates or planetary positions influence personality or destiny. Astrology is best enjoyed as entertainment and a reflective tool. The trait descriptions feel accurate partly because they're broad enough to fit most people.