Free Transit Chart Calculator

A transit chart compares the sky on a given day with your birth chart. The planets keep moving after you're born. Whenever one of them lines up with a planet in your birth chart, astrologers call that a transit.

You don't get a separate chart to memorize. You get your birth chart with today's planets sitting on top of it. The tool shows your natal planets dim and the current ones lit, so you can see which pairs are touching. It's the same idea behind searches like "current transits" and "birth chart transit calculator": your chart plus a date.

Three things decide how much a transit counts.

• Slow planets matter most. Saturn, Jupiter, Uranus, Neptune and Pluto take months or years to cross a point, so their transits are the long chapters. Mars and the Sun are quick, and the Moon changes sign every couple of days, so they work as short-lived triggers.
• Orbs. An orb is how far a planet is from an exact aspect. This calculator lists only aspects within 1°, the tight ones that astrologers treat as active. Tighter ones come first on the list.
• Applying or separating. An applying transit is still moving toward exact, so its themes are building. A separating one has passed exact and is fading. Each line tells you which one you're in.

If you gave a birth time and place, the tool also shows which of your houses each transiting planet is passing through. That tells you the area of life where the planet's themes show up.

• Conjunction (0°): the two planets merge. It's the strongest transit and starts a new cycle for that pair.
• Opposition (180°): the two planets face each other. Expect tension and other people reflecting something back to you.
• Square (90°): friction that pushes you to act. These are the transits people remember as tests.
• Trine (120°): energy flows easily. Good timing, though it won't do the work for you.
• Sextile (60°): a smaller opening. It helps if you take the opportunity.

Each listed aspect also gets a one-line meaning for that pair of planets, such as "Saturn square your Venus: a test of commitments." It describes a theme for the period, not a prediction of an event.

Progressions are a second, slower layer. The most common method, secondary progressions, uses a "day for a year" rule. One day after your birth stands for one year of your life.

To find your progressed chart for a chosen date, take your age on that date and cast the chart for that many days after you were born. At 30, that's the chart for the 30th day after your birth.

The calculator shows:

• Progressed Sun and Moon signs. The progressed Sun changes sign roughly every 30 years. The progressed Moon moves about a degree a month, so it changes sign about every two and a half years.
• The date the progressed Moon next changes sign, which astrologers often treat as a shift in emotional tone.

People also look this up as a progressed chart, progression chart or progressed horoscope. It's all the same calculation.

• Transits use the real sky on the day you pick. They're the day-to-day layer and the one to check first.
• Progressions move slowly and describe inner development over years.
• A solar return is a chart for each birthday that sketches the year ahead. Try the solar return chart calculator.

Astrologers often read them together, with the birth chart as the base. You can start with the free birth chart if you haven't seen yours yet.

Astrology is a symbolic tradition, and this calculator is for reflection and entertainment.