Astrology Chart Calculator

Estimate your basic astrology chart using your birth date, birth time, time zone, latitude, and longitude. This calculator gives a simplified chart with your sun sign, moon sign, rising sign, dominant element, dominant modality, polarity balance, and chart summary.

Calculate Astrology Chart

Astrology Chart Estimate = Sun Sign + Moon Sign + Rising Sign + Element / Modality / Polarity Balance
Your result will appear here.

How the astrology chart calculator works

Sun sign:
The calculator matches your birth month and day to common Western zodiac date ranges.

Moon sign:
The calculator estimates the moon’s zodiac longitude using birth date, birth time, and time zone.

Rising sign:
The calculator estimates the ascendant using birth time, time zone, latitude, longitude, and local sidereal time.

Why use an astrology chart calculator?

An astrology chart calculator helps estimate the main placements used in a basic astrology profile. It is useful for checking your big three, comparing element balance, reviewing modality balance, and understanding the overall tone of a simple chart.

This page is a quick estimate. A full professional astrology chart may include planetary degrees, houses, aspects, nodes, asteroids, and detailed birth location rules.

What your astrology chart result means

Your astrology chart result summarizes your big three and chart balance. The sun sign describes identity, the moon sign describes emotional patterns, the rising sign describes first impressions, and the balance section summarizes the element, modality, and polarity mix.

Astrology chart tips

Frequently asked questions

What is an astrology chart?

An astrology chart is a map of zodiac placements based on a birth date, birth time, and birth location.

Is an astrology chart the same as a birth chart?

In many cases, yes. Astrology chart, birth chart, and natal chart are often used to describe the same type of chart.

What are the big three?

The big three are the sun sign, moon sign, and rising sign. They are commonly used as a quick astrology profile.

Is this calculator exact?

This calculator gives a simplified estimate. Exact chart calculations require precise ephemeris data, birth location, daylight saving time rules, and historical time zone records.