Astraluno

Zodiac sign calculator by birth date

Start with your birth date. It’s free and takes a minute.

010203

Your birth date

Arrow keys change the value. Page Up and Page Down move five steps. Home and End reach the limits.

17 / 05 / 1990

Free, without an account · 1900–2099

Start with your birth data

Choose the city from the results. Date and time stay on your device.

See an example

Common questions

Why are my houses different from those on other sites?

Astraluno uses Whole Sign houses; many sites use Placidus. Both are traditional methods. Signs and planets do not change.

How accurate is the calculation?

Planet positions were checked against NASA JPL Horizons: a maximum gap of 0.34 arcminutes over 310 positions. The Ascendant was checked on 68 cases. We use historical time zones with daylight saving rules.

Is Astraluno free?

Yes. The calculator and all readings are free, without an account or payment card.

Can I calculate a chart without my birth time?

Yes. We check the full local day and show possible signs. Without a time, the rising sign and houses are unavailable.

Are birth details sent to the server?

No. Date and time are processed in the browser. The server receives the city search query and the request for the time-zone file.