Progressed Moon Phase Calculator: Lunation Cycle by Age

Progressed Moon Phase Calculator

Map your place in the secondary progression lunation cycle. Using the astrology rule of one day equals one year, this finds your current progressed moon phase inside the roughly 29.5-year emotional life cycle, plus the date your next phase begins.

🔮Lunation Cycle Presets

🗓Your Details

Your natal lunar phase shifts where you start inside the cycle.

Extra years into the natal phase, 0 to 3.69, for a closer fit.

Used only when age input method is set to manual.

Progressed phase New current life chapter
Years into phase 0.0 of 3.69 phase years
Years into cycle 0.0 of 29.5 cycle years
Next phase begins approximate date

For entertainment and self-reflection only. Not astronomical or predictive; a full chart uses exact ephemeris positions.

🔢Cycle Snapshot

29.5Cycle years
3.69Years per phase
8Progressed phases
1:1Day to year rule

🌑Eight Progressed Phases & Life Themes

PhaseSymbolCycle YearsKeywordLife Theme
New Moon🌑0.00 – 3.69EmergenceInstinctive fresh start; plant seeds of a new 29.5-year chapter, often unclear but full of impulse.
Crescent Moon🌒3.69 – 7.38BuildingStruggle to establish; commit energy and push past old patterns that resist the new direction.
First Quarter🌓7.38 – 11.06ActionCrisis of action and decision; build lasting structures through effort, conflict, and momentum.
Gibbous Moon🌔11.06 – 14.75RefiningAnalyze, adjust, and perfect; devotion to improving what you started before it reaches fruition.
Full Moon🌕14.75 – 18.44FruitionPeak illumination and clarity; relationships and meaning culminate as the chapter fully blooms.
Disseminating🌖18.44 – 22.13SharingGive back and teach; distribute what you learned and harvest the wisdom of the peak.
Last Quarter🌗22.13 – 25.81ReorientingCrisis of consciousness; question old beliefs, release structures, and turn inward for review.
Balsamic Moon🌘25.81 – 29.50ReleaseWinding down and letting go; rest, dream, and prepare the soil for the next New Moon rebirth.

📊Age vs Progressed Phase (from New start)

AgeCycle PositionPhaseCycle %Life Theme
0 – 3.70.0 – 3.7 yrNew0 – 12%Instinctive beginnings
3.7 – 7.43.7 – 7.4 yrCrescent12 – 25%Building momentum
7.4 – 11.17.4 – 11.1 yrFirst Quarter25 – 37%Decisive action
11.1 – 14.811.1 – 14.8 yrGibbous37 – 50%Refining the work
14.8 – 18.414.8 – 18.4 yrFull50 – 62%Peak fruition
18.4 – 22.118.4 – 22.1 yrDisseminating62 – 75%Sharing wisdom
22.1 – 25.822.1 – 25.8 yrLast Quarter75 – 87%Reorienting values
25.8 – 29.525.8 – 29.5 yrBalsamic87 – 100%Release and rest
29.5 – 33.20.0 – 3.7 yrNew (2nd)0 – 12%New cycle at ~30
44.3 – 48.014.8 – 18.4 yrFull (2nd)50 – 62%Midlife fruition

Full 29.5-Year Cycle Timeline

SegmentStarts (yr)Ends (yr)DurationTurning Point
Phase 1 New0.003.693.69 yrCycle rebirth
Phase 2 Crescent3.697.383.69 yrCommit forward
Phase 3 First Quarter7.3811.063.69 yrAction crisis
Phase 4 Gibbous11.0614.753.69 yrFinal refining
Phase 5 Full14.7518.443.69 yrPeak clarity
Phase 6 Disseminating18.4422.133.69 yrGive back
Phase 7 Last Quarter22.1325.813.69 yrBelief crisis
Phase 8 Balsamic25.8129.503.69 yrSurrender

Phase Duration Reference

Cycle LengthPer PhaseHalf CycleQuarterNew to Full
29.5 yr3.69 yr14.75 yr7.38 yr~14.8 yr
29.53 yr3.69 yr14.77 yr7.38 yr~14.8 yr
30.0 yr3.75 yr15.00 yr7.50 yr~15.0 yr
In months~44 mo~177 mo~89 mo~177 mo
In days~1348 d~5389 d~2695 d~5389 d

How the Progression Works

Day for a yearSecondary progressions move the chart one day for each year of life. Your age in years equals the days advanced.
Age in yearsage = (reference date − birth date) in days ÷ 365.2425. Manual mode uses the age you type.
Natal offsetstart offset = natal phase index × 3.69 + fine offset years. This shifts where age 0 sits in the cycle.
Cycle positionposition = (age + start offset) modulo 29.5. This is how many years into the current lunation cycle you are.
Phase indexindex = floor(position ÷ 3.69), giving 0 to 7 which maps to New through Balsamic.
Years into phaseinto = position − (index × 3.69). Remaining = 3.69 − into years until the next phase.
Next phase datenext date = reference date + (remaining years × 365.2425) days, rounded to the nearest day.

💡Reading Your Lunation Cycle

Life chapters tip: The 29.5-year cycle mirrors long life chapters. A progressed New Moon around ages 30 and 59 tends to open a brand-new direction, so notice fresh starts near those years.
Turning point tip: New and Full are the major turning points. Full sits near the cycle midpoint at 14.75 years and often brings a relationship or purpose to a visible peak and clarity.

A second astrological cycle to map is progressed moon. This represents your own personal emotional weather over time. Have you ever felt like life shifted gears, seemingly out of nowhere? Did you feel intense energy one year, then heavy fatigue another?

It’s called the progressed moon, which follows a repeated pattern of growth, peak, and release in a 29-and-a-half-year loop. It’s been tracked by astrologers for centuries. The tool on this page do all the math for you, allowing you to spend less time predicting the future, like trying to predict lottery numbers, and more time understanding how those phase affect your day-to-day life.

How the Progressed Moon Works

Secondary progressions follow a simple rule where each day a planet move along its path is equal to one real-life year. Even so, it is still one of the simplest mechanics. On the day you were born, the chart was at your natal moon phase. From that moment forward, your chart continues moving forward and you’ll have progressed through thirty two days since then.

It gives us an inner clock that ticks slowly and is unlike fast changes that we read about in daily transits for horoscopes. Progressions provides insight into the conditions under which things occur while transits are more like triggers for events. Your progressed moon phase shows not only if there will be lots of stuff going on around you, but what kind of experience it will be for you.

Because your place on the moon cycle arc defines your age, that initial starting point is set by the moon phase you were born under. A person born during a new moon will spend their first chapter planting seeds and connecting with their instincts; someone whose beginnings came in a waxing (balsamic or waning) phase of the lunar cycle was probably spending time assimilating older lessons and looking ahead. That’s why the beginning point isn’t overlooked: The calculator accounts for that difference, which means your results aren’t skewed if you measure your progress from an incorrect starting point. To understand how far you’ve come, you must know where you started.

The first half of the cycle, what we call the first quarter and crescent phases. Covers most peoples’ twenties: It’s the time to establish our boundaries and build structures. Even if the path isn’t entirely clear at this point, it feels like something must of been done. Within each loop of twenty-nine years, the full moon phase typically occurs sometime between mid-teens and late teens. That’s the high point of both relationship culmination and clarity, when major life partnerships tends to form (or fall apart) because you’ve come under such an inner pressure for truth that it cannot go ignored any longer.

The tables here spell out those timings clearly, so you can see which phase corresponds to which age based off where you were born within each of those four-week periods. The second half of the cycle (beyond the full moon) can be misconstrued as decline, or even failure, which is why it’s easy to feel the energy shift from expanding outward to refining inward. But this is the harvest, letting go of what doesn’t serve us anymore while learning our lessons and gathering wisdom.

The last quarter arrives in a crisis of beliefs, when we question our old values and the energy feels like it’s falling apart. Then finally comes the balsamic phase. It is restful, quiet, and preparatory. It is the calm before the storm, but also the stillness before rebirth. Understanding this helps avoid panic in transitional years, You’re not falling apart. You’re winding down so that you can begin again.

So knowing these phases realy helps you understand what’s going on, when it’s happening (and not just plan to make things happen). For instance, during the waning phase. Take time out, reflect, rest; should you push for new projects? Not so much. Push hard during the building phase? Makes sense. Use the calculator to know where you are at any given time, and when your next phase change will occur.

All those ideas about astrology come alive as a map of your own personal timeline. No, life doesn’t neatly fit into charts like this, but generaly things do repeat themselves, and knowing where you are in the moon cycle, whether it’s an active or a letting-go phase… Can save you from fighting against the natural flow. The next time you feel inexplicably energized (or stuck)…it may well be the moon cycle that explains why you suddenly think the soil is beckoning to try another seed again.

Progressed Moon Phase Calculator: Lunation Cycle by Age