Tools

Calculate anything in your chart

Every calculator runs on real ephemeris data and answers in one screen.

Free, no account No watermark on downloads Real ephemeris data

Start with a question

the six most-asked

What's my birth chart?

Birth ChartCharts

What's my rising sign?

Rising signCharts

What's happening in my chart right now?

TransitsCharts

Where should I live?

AstrocartographyMaps

Are we compatible?

SynastryCharts

When is Mercury retrograde?

Mercury retrogradeCalendars & timing

Nothing to enter

All 11 →

These read the ephemeris over a date range, so they answer before you type anything.

Ephemeris Mars retrograde Mercury retrograde Moon ephemeris Moon phases Outer planets Planet ingresses Retrogrades Transit calendar Venus retrograde Void of course moon

Browse by category

Charts

36 calculators

natal · sidereal · draconic · returns · synastry · composite

All 36 →

Calendars & timing

19 calculators

retrograde · moon phase · eclipse · ingress · profections · ephemeris

Annual profections Decennials Egyptian bounds Ephemeris Firdaria Mars retrograde Mercury retrograde Moon ephemeris

All 19 →

Maps

3 calculators

astrocartography · local space · relocation

Astrocartography Local space Relocation chart

All 3 →

Aspect search

aspect search

Read further

where a calculated value is explained

The twelve systems

Each calculator's output has an encyclopedia page behind it.

Natal Chart Transits Human Design Gene Keys Vedic Nakshatras Mayan Tzolkin

All twelve →

Worked examples

Every calculator run on a chart whose data is public.

The celebrity corpus →

Terms as they come up

The words these tools use, defined once.

Ascendant (Rising Sign)House Aspect Retrograde Whole Sign Midheaven (MC)

The full glossary →

Keep a result

Calculators are free and anonymous. A Vault keeps your charts, your people and the readings you have already run.

Create your chart

Explore Celebrity Charts

Celebrity Birth Charts Compatibility Groups Predictions