Zodiac Calculator
Find your zodiac sign, personality traits and compatible signs from your birthday. Discover your astrological profile.
Zodiac Calculator
Discover your star sign and personality
Last updated: April 2026
How this calculator is verified
Checked by True Calculator automated test suite on
- Formula verified against a published worked example in the automated test suite
- Edge cases (zero, negative, boundary and unit-mismatch inputs) covered by unit tests
The full verification method is on our how we verify page. Found an error? Tell us and we will re-check it.
When to Use This Calculator
This tool maps a birth date to its Western zodiac sign — Aries, Taurus, Gemini and so on — using the traditional date ranges, and also explains the element and personality traits associated with each sign. People use it when they only know their birthday but keep forgetting their sign, when checking the compatibility of two signs for a relationship, or when a friend insists a date is on the cusp and the sign could go either way. Around New Year and birthday season it gets heavy use as friends settle arguments about who is what sign. The date ranges follow the standard astrological calendar, with a clear note that Vedic astrology uses a different system based on the sidereal zodiac.
How to Use This Calculator
- Step 1: Select the birth date — day, month and year — of the person whose zodiac sign you want.
- Step 2: Read the sign, its date range and its element shown by the calculator.
- Step 3: Review the personality summary, compatible signs, lucky number and lucky colour shown alongside.
- Step 4: Repeat for other birthdays in the family to compare signs and check which ones the tool lists as compatible.
Worked Example
Someone born on 14 August 2026 is a Leo, since Leo runs from 23 July to 22 August. Enter the birth date and the tool returns the sign, element, date range, compatible signs, lucky number and lucky colour in one result. Leo is a fire sign, and the tool lists Aries, Sagittarius and Gemini as the most compatible matches. Use it for friends' and family members' birthdays to build each person's profile, but remember the zodiac is a folk tradition rather than a scientific classification.
Tips and Common Mistakes
- •Tip 1: A birth date falling exactly on a sign's boundary date, like 20 April, can produce different signs in different systems, so check the tool's date range table.
- •Tip 2: Use the same birth date consistently across astrology sites, because cusp handling differs and you may get a neighbouring sign.
- •Tip 3: Pair the sign results with the compatibility list to pick fun talking points for group chats and family gatherings.
- ✗Mistake 1: Entering only the birth month without the day, which leaves the sign ambiguous for dates near a boundary.
- ✗Mistake 2: Treating the lucky number or compatibility list as guidance for real decisions like lottery numbers or marriage.
Frequently Asked Questions
How do I find my zodiac sign?
Enter your birth date and the calculator determines your zodiac sign based on Western astrology date ranges.
What are the zodiac elements?
Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius), and Water (Cancer, Scorpio, Pisces).
What is the difference between Western and Vedic zodiac signs?
Western astrology uses the tropical zodiac fixed to the seasons, while Vedic (sidereal) astrology accounts for the slow drift of the stars, so signs can differ by about 24 days. This calculator uses the Western system.
What if my birthday is on a cusp?
Cusps fall on the last day of one sign and the first of the next. Most astrologers assign the sign based on the exact birth time and location, so the calculator uses the standard date ranges as a best estimate.
What are the four zodiac elements?
Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius) and Water (Cancer, Scorpio, Pisces). Each element is associated with different personality traits.
Compare these tools
- Money Counter Calculator — Count dollar and rupee banknotes and coins of every denomination, from $100 and ₹2000 notes down to pennies and ₹1 coins, and total cash in hand instantly
- Soup Calculator — Scale soup recipes to any number of servings and estimate the broth you need, so your pot always matches the number of people you are feeding
You might also need
Related calculators from other categories
Health & Fitness
Body Type Calculator
Estimate your body type — ectomorph, mesomorph or endomorph — from BMI and body fat, with training guidance for each.
Date
Day of Week Calculator
Find the weekday of any date, plus day of year, ISO week number, Julian day and month facts. Great for historical dates and event planning.
Math
Grade Calculator
Calculate your current grade and what you need on the final exam to reach your target grade.
Health & Fitness
Sleep Calculator
Calculate the best bedtime based on your wake-up time and sleep cycles. Wake up refreshed with optimal sleep timing.