Neptune
sign calculator
Neptune dissolves: longing, mysticism, confusion. Under its influence boundaries get porous and meanings slip away. That is where art and compassion come from, and sometimes where clarity gets lost. Neptune shows where you are open to something larger and where you should watch out for fooling yourself with fog.
Your birth data
When were you born?
The date sets the Sun, Moon and every planet.
Your birth date is enough for the sign.
Contents
Three steps to your Neptune
Enter your birth data
Your birth date is enough. You only need a time for the house.
Calculate the position
We calculate with the Swiss Ephemeris, the same base professional astrology software runs on. It is accurate to the arc second, and free.
Read the interpretation
Your sign appears right away, together with a clear explanation of what it can say about you and a link to the matching interpretation.
Video · 33 seconds
Your personal fog
Neptune is the planet of longing and art, but also of confusion. Its sign in your birth chart shows where you are open to the unseen.
Read along
One part of your birth chart is like walking through a thick fog. This is Neptune's world. Its job is to dissolve boundaries. This is where compassion and imagination are born. But it's also home to confusion. Every planet has a job. The sign it's in describes its working style. So your Neptune sign shows your personal style of feeling longing and uncertainty. Work out your sign for free at theastroacademy.com.
What Neptune means
Dream, longing and fog
Neptune stands for imagination, spirituality, compassion and art. Its shadow side is illusion, escape and confusion. It dissolves boundaries, a bit like fog over a lake: where Neptune works, clear lines blur and longing, inspiration or self-deception rise to the surface. This is the place where you feel connected to something larger than yourself.
Why the house matters more than the sign
Neptune travels very slowly and stays about 14 years in each sign. That is why its sign describes the dream of a whole generation more than you personally. What belongs to you is the house Neptune sits in and the aspects it makes. In that area of life, imagination, art and spirituality show up, and sometimes the spot where clarity slips away from you easily.
Neptune sign by birth year
Neptune takes about 165 years to orbit the Sun, so it stays in each sign for roughly 14 years. A whole birth cohort, often several, shares the same Neptune sign. That is why it is called a generational planet: its sign says more about what a generation dreams of and gets swept up in than about a personal trait. Neptune becomes personal through its house and its aspects to the Sun, Moon or Ascendant. Because Neptune turns retrograde every year, it often swings back and forth across a sign boundary for months. If you were born in a crossover year, enter your date rather than reading the year off the table.
Neptune signs from 1900 to 2040
| Neptune sign | First entry | Final exit |
|---|---|---|
| Neptune in Gemini | before 1900 | May 21, 1902 |
| Neptune in Cancer | Jul 20, 1901 | May 2, 1916 |
| Neptune in Leo | Sep 23, 1914 | Jul 24, 1929 |
| Neptune in Virgo | Sep 21, 1928 | Aug 2, 1943 |
| Neptune in Libra | Oct 3, 1942 | Aug 6, 1957 |
| Neptune in Scorpio | Dec 24, 1955 | Nov 6, 1970 |
| Neptune in Sagittarius | Jan 4, 1970 | Nov 21, 1984 |
| Neptune in Capricorn | Jan 19, 1984 | Nov 28, 1998 |
| Neptune in Aquarius | Jan 29, 1998 | Feb 3, 2012 |
| Neptune in Pisces | Apr 4, 2011 | Jan 26, 2026 |
| Neptune in Aries | Mar 30, 2025 | Mar 23, 2039 |
| Neptune in Taurus | May 22, 2038 | — |
The table starts with the sign Neptune occupied on 1 January 1900. If your birthday falls between one sign's first entry and the previous sign's final exit, the exact day decides. The calculator above checks it for you.
How Neptune gets personal
- The house points to the area of life where you might idealize things or easily fool yourself. It needs a time and place; the house calculator shows it.
- Tight aspects to the Sun, Moon or Venus make Neptune noticeable. The aspect calculator lists yours.
- Neptune's transits last months. See where it is now under the sky today.
For a sample reading see Neptune in Pisces, the sign of those born 2011 to 2025. The guide to the planets explains Neptune itself; every point is listed in the placements overview and your birth chart.
Which Neptune sign is the most common?
Sagittarius: 19.9% of all birth moments from 1940 to 2009. 6 of the twelve signs do not occur in these birth years at all.
Neptune needs 165 years for one round of the zodiac. In 70 years he covers only part of it: everyone born between 1940 and 2009 has him in one of just 6 signs. That is why he describes a generation more than a single person.
| Sign | Share 1940–2009 | Period |
|---|---|---|
| Aries | 0% | 2025–2039 |
| Taurus | 0% | 2038–2052 |
| Gemini | 0% | 2051–2066 |
| Cancer | 0% | 2065–2079 |
| Leo | 0% | 2078–2093 |
| Virgo | 4.4% | 1928–1943 |
| Libra | 19.5% | 1942–1957 |
| Scorpio | 19.7% | 1955–1970 |
| Sagittarius | 19.9% | 1970–1984 |
| Capricorn | 19.8% | 1984–1998 |
| Aquarius | 16.7% | 1998–2012 |
| Pisces | 0% | – |
Counted with the Swiss Ephemeris: every moment from 1940 to 2009 at three-hour steps, each counted equally (not official birth records). Stays from a daily scan 1900–2100, from the first entry to the final change of sign.
Neptune: frequently asked questions
- Do I need my birth time for the Neptune?
- No. Neptune stays in one sign for about 14 years, so your birth date is more than enough. Neptune counts as 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.
More astrology tools
South Node
Another point in your chart to look up.
Venus
Another point in your chart to look up.
Aspects
Check aspects between two points.
Planets & points
What every planet and point in a chart means, explained plainly.
Birth chart
Your whole chart with every point at once.
Learn astrology
Read your chart yourself in 30 days.
See your whole chart
Neptune is one point among many. Build your full birth chart with every planet, point, house and aspect, for free.
Build my birth chartFree, no sign-up.