Three free tools, no signup required
Everything you need to read your own chart
From your first natal chart to comparing it with someone else’s, these calculators turn raw astrology data into something you can actually understand.
Birth Chart Calculator
Enter your birth date, time, and location and get your complete natal chart — every planet, house, and aspect, explained in plain language instead of raw coordinates.
- Sun, Moon, and Rising sign at a glance
- All ten planetary placements with house positions
- Major aspects between planets, plainly explained
- Works from birth date, time, and place — no astrology background needed
Synastry Chart Calculator
Lay two birth charts on top of each other to see how you and someone else actually interact — where you naturally align, and where friction is likely to show up.
- Side-by-side chart comparison for two people
- Highlights the aspects that matter most in a pairing
- Notes on communication, attraction, and long-term fit
- Works for romantic partners, friends, or family
Love Compatibility Calculator
Don’t have birth times handy? This gives you a faster read on compatibility using just sun signs — built from elemental matches and classic sign-to-sign aspects.
- Instant result from two sun signs — no birth time required
- Element and modality breakdown (fire, earth, air, water)
- A compatibility score with a short explanation
- A good starting point before a full synastry reading
Learn astrology with practical guides
Explore clear explanations that help you understand your results and use each calculator with confidence.
01
Understand your birth chart
Learn what your planets, signs, houses, and aspects reveal in a natal chart.
02
Explore relationship astrology
See how two natal charts can be compared through synastry and planetary aspects.
03
Make sense of love scores
Understand what a compatibility percentage can—and cannot—tell you.
Common questions
Do I need to know my exact birth time?
For the Birth Chart and Synastry calculators, yes — birth time changes your Rising sign and house placements, so it matters for accuracy. If you don’t have it, the Love Compatibility Calculator works from sun sign alone.
Is my birth data stored anywhere?
The calculators are built to run the chart and show you the result without holding onto your personal details longer than needed for that session.
Which tool should I start with?
If you’re new to astrology, start with the Birth Chart Calculator to understand your own placements first — synastry and compatibility readings make more sense once you know your own chart.
Are these tools free?
Yes, all three calculators are free to use and don’t require an account.
How it works
Three steps, whichever tool you pick.
01
Enter your details
Birth date, time, and location for chart tools — or just a sun sign for a quick compatibility check.
02
We calculate the chart
Planetary positions and aspects are worked out from real astronomical data, not a generic template.
03
Read the plain-language result
Every placement and aspect comes with an explanation — no prior astrology knowledge required.
Ready to see your chart?
Pick a tool above, or start with your own birth chart first.