Free tools
Free astrology calculators and numerology tools
Calculate birth-chart placements, Vedic timing, Chinese zodiac cycles and numerology numbers with the method shown beside every result.
Start with the most searched chart tools
Birth chart, natal chart, rising sign, Moon sign and Big Three queries are some of the clearest calculator-first astrology searches. ReadAstrology keeps these tools free and separates calculation from interpretation.
Use exact birth time and birthplace for angles such as the Ascendant and Midheaven. Planetary placements are calculated from the same tropical chart engine used by the full Western reading.
Explore Vedic, Chinese and numerology calculators
The tools hub also includes Vedic birth chart, nakshatra and Vimshottari Dasha calculators, Chinese zodiac and BaZi previews, plus Pythagorean numerology calculators.
Each calculator states the inputs, method and limitations so similar-looking systems are not blended into one result.
Frequently asked questions
Are the astrology calculators free?
Yes. The public calculator previews can be used without an account and do not require an AI interpretation.
Which free astrology calculator should I start with?
For Western astrology, start with the birth chart or Sun, Moon and rising calculator. If you only need one placement, use the dedicated sign calculator.
Do I need my exact birth time?
Exact birth time is especially important for the rising sign, Midheaven and houses. Use the most reliable recorded time available.