Astrology Calculators — Astrology
10 free astrology calculators in astrology & numerology. Each tool shows step-by-step formulas, worked examples, and detailed explanations to help you get accurate results instantly.
All Astrology Calculators
Generate a basic natal birth chart showing planet positions in signs and houses.
Calculate your Mars sign for insights into your drive, ambition, and conflict style.
Find the dates of past and upcoming Mercury retrograde periods.
Calculate your Mercury sign for insights into your communication and thinking style.
Calculate your moon sign from birth date, time, and location for emotional astrology.
Calculate your rising sign (ascendant) from exact birth time and location.
Calculate when your Saturn return occurs — a major astrological transit around ages 29 and 58.
Calculate your Venus sign for insights into your love style and relationship patterns.
Check romantic and friendship compatibility between two zodiac signs.
Find your zodiac sun sign from your exact birth date including cusp dates.
About Astrology Calculators
Our astrology calculators in astrology & numerology are designed for students, professionals, and anyone who needs quick, accurate results. Every calculator includes the underlying formula, step-by-step solutions, and real-world worked examples so you can understand the math behind the answer.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common astrology scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 10 tools: Birth Chart Calculator, Mars Sign Calculator, Mercury Retrograde Calculator, Mercury Sign Calculator, Moon Sign Calculator, Rising Sign Calculator, Saturn Return Calculator, Venus Sign Calculator, and 2 more. Each calculator is free to use with no signup required.