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TheresaThe Astro AcademyBy Theresa
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Astrology · Neptune

Neptune
sign calculator

Neptune dissolves — longing, mysticism, confusion. It makes boundaries porous and meanings fleeting: art is born here, compassion happens here, but clarity also gets lost here. Neptune shows where you are open to something larger, and where you must be careful not to fool yourself with fog.

Your birth details

Enter your date, time and birthplace — we’ll calculate your personal result, free and in under a minute.

From your birth date, time and city we calculate your personal chart — each detail unlocks more of it.

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Swiss-Ephemeris accurateNo sign-up neededResult in seconds

Only your birth date is needed — no time required.

How it works

Three steps to your Neptune

  1. Enter your birth data

    Your birth date is enough. You only need a time for the house.

  2. Calculate the position

    We use the Swiss Ephemeris engine — the same calculation base professional astrology software runs on. Arc-second accuracy, free.

  3. Read the interpretation

    You instantly see your sign — plus a clear explanation of what it says about you, and a link to the matching interpretation.

The basics

What Neptune means

Dream, longing and fog

Neptune stands for imagination, spirituality, compassion and art — but also for illusion, escape and confusion. It dissolves boundaries: wherever Neptune works, the clear-cut blurs, and longing, inspiration — or self-deception — surface. It’s the place where you feel connected to something larger than yourself.

Why the house matters more than the sign

Neptune moves very slowly — about 14 years per sign. So its sign describes the collective dream of a whole generation, not you personally. What’s genuinely yours is the house Neptune sits in and the aspects it makes: that’s where imagination, art and spirituality — or the spot where you easily lose clarity — show up in your life.

Neptune in every sign

AriesTaurusGeminiCancerLeoVirgoLibraScorpioSagittariusCapricornAquariusPisces
The planets
What every planet means

From the Sun to Pluto — what each planet governs in your chart, in plain language.

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Neptune — frequently asked questions

Do I need my birth time for the Neptune?
No. Neptune stays in one sign for about 14 years — your birth date is more than enough. Neptune is a generational planet: a whole age cohort shares the same Neptune sign.
What does my Neptune sign say about me?
Your Neptune sign shows how Neptune expresses itself in your chart. Enter your birth date, find your sign, and read the full interpretation below.
Is the Neptune calculator free?
Yes. The calculator is completely free and needs no sign-up. We only ask for your email when you want to connect the result to your full birth chart.

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Theresa TouheyReviewed by Theresa Touhey · Astrologer & Tarot Reader

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