Free Astrology Calculators
Sign Calculators
Find the sign of any planet or point in your birth chart. Each calculator explains what the placement describes, how it is calculated and why your birth time matters, then links to the article for your sign.
- Big Three Calculator
Your Sun, Moon and rising signs together, the core of a birth chart.
- Sun Sign Calculator
Your zodiac sign, settled to the minute for birthdays on a cusp.
- Moon Sign Calculator
Your emotional nature, with both signs shown when the Moon changed sign that day.
- Rising Sign Calculator
The sign on the eastern horizon at your birth, and how close your time was to a change.
- Mercury Sign Calculator
How you think, learn and speak, and whether Mercury was retrograde.
- Venus Sign Calculator
How you love, what you find beautiful and what you value.
- Mars Sign Calculator
How you act, desire and meet friction.
- Jupiter Sign Calculator
Where you grow and look for meaning, with every Jupiter sign change since 1900.
- Saturn Sign Calculator
Where you meet limits and build lasting strength, with Saturn's sign dates.
- North Node Calculator
Your North and South Node signs, the axis of growth in your chart.
- Lilith Calculator
Black Moon Lilith, the instinct that refuses to be tamed, with sign dates by birth date.
- Chiron Calculator
An old sensitivity and the wisdom it grows into, with Chiron's uneven pace through the signs.
- Midheaven Calculator
Your public direction and sense of vocation, the highest point of your chart.
- Chart Ruler Calculator
The planet that rules your rising sign, and the sign and house it sits in.
- Part of Fortune Calculator
Where ease and well-being tend to come to you, with the day or night formula.