Astrology

Find your zodiac sign, calculate your age, or count down to your birthday - every calculator here runs instantly in your browser.

Age CalculatorCalculate your exact age in years, months, and days from your birth date, free and instantly in your browser.

Biorhythm CalculatorCalculate your physical, emotional, and intellectual biorhythm cycles for any date, instantly and for free.

Birth Chart SummaryGet a quick summary of your sun, moon, and rising signs from your birth date, time, and location, free and entirely in your browser.

Birthday CountdownSee exactly how many days are left until your next birthday and what age you'll turn, free and instantly in your browser.

Business Days CalculatorCount the number of weekdays between two dates, instantly and for free.

Chinese Zodiac FinderFind your Chinese zodiac animal and element from your birth date, free and instantly, entirely in your browser.

Date Difference CalculatorCalculate the exact number of days, weeks, months, and years between two dates, free and instantly in your browser.

DATE → QUARTER-CALCULATORFind which calendar quarter (Q1-Q4) a date falls in, instantly and for free.

Day of Week FinderFind out what day of the week any date fell on, instantly and for free, entirely in your browser.

Day Of Year CalculatorFind which day of the year (ordinal date) any date falls on, instantly and for free.

DISTANCE → HORIZON-CALCULATORCalculate how far away the horizon is based on your height above the ground, instantly and for free.

ISO Week Number CalculatorFind the ISO 8601 week number for any date, instantly and for free.

Julian Day CalculatorConvert any calendar date to its Julian Day Number and ISO week number, free and instantly in your browser.

Leap Year CheckerCheck whether a year is a leap year, instantly and for free.

Moon Phase CalculatorCalculate the moon phase and illumination percentage for any date, instantly and for free.

Moon Sign CalculatorEstimate your astrological moon sign from your birth date and time, free and entirely in your browser.

Next Full Moon CalculatorFind the date of the next full moon from any starting date, instantly and for free.

Numerology Life Path CalculatorCalculate your numerology life path number from your birth date, instantly and for free.

Orbital Period CalculatorCalculate a solar orbital period from its distance, using Kepler's third law, instantly and for free.

Rising Sign CalculatorEstimate your astrological rising sign (ascendant) from your birth date, time, and location, free and entirely in your browser.

Schwarzschild Radius CalculatorCalculate the black hole (event horizon) radius for any given mass, instantly and for free.

Sunrise and Sunset CalculatorFind sunrise, sunset and day length for any date and place on Earth. Free, no sign-up, and it runs in your browser.

Tarot Card Of The DayDraw a random tarot card from the full 78-card deck, instantly and for free - just for fun.

Weight On Jupiter CalculatorCalculate what you'd weigh on Jupiter, instantly and for free.

Weight On Mars CalculatorCalculate what you'd weigh on Mars, instantly and for free.

Weight On Mercury CalculatorCalculate what you'd weigh on Mercury, instantly and for free.

Weight On Moon CalculatorCalculate what you'd weigh on the Moon, instantly and for free.

Weight On Saturn CalculatorCalculate what you'd weigh on Saturn, instantly and for free.

Weight On Venus CalculatorCalculate what you'd weigh on Venus, instantly and for free.

Zodiac Compatibility CheckerCheck element-based compatibility between two zodiac signs, instantly and for free.

Zodiac Sign FinderFind your Western sun sign from your birth date, free and instantly, entirely in your browser.