# Chart Calculators > Free natal chart, transit chart, solar return, lunar return and divisional chart calculators for accurate astrology readings. ## Tool Category Metadata - Page Type: Tool category - Category Key: charts - Tool Count: 42 ## Related links - [Tools](https://www.yesastrology.com/en/tools) - [Category](https://www.yesastrology.com/en/tools/chart-calculators) - [Canonical URL](https://www.yesastrology.com/en/tools/chart-calculators) - [Page LLMS URL](https://www.yesastrology.com/en/tools/chart-calculators/llms.txt) ## Page summary Free natal chart, transit chart, solar return, lunar return and divisional chart calculators for accurate astrology readings. This category covers birth chart, transit, solar return, lunar return, secondary... ## Available tools - [Astrocartography Chart Calculator (Astro Map) Calculator](https://www.yesastrology.com/en/tools/chart-calculators/astrocartography-chart-calculator): Generate your free astrocartography chart to see how locations worldwide influence your natal chart. Calculate your astrology chart online for instant. | API: /api/v1/tools/astrocartography-chart-calculator/calculate - [Astrocartography City Finder Calculator](https://www.yesastrology.com/en/tools/chart-calculators/astrocartography-city-finder-calculator): Rank 2–5 selected cities by the closest planetary MC/IC meridian and compare their relocated chart angles and house assignments. | API: /api/v1/tools/astrocartography-city-finder-calculator/calculate - [Birth Chart Calculator (Natal Chart) Calculator](https://www.yesastrology.com/en/tools/chart-calculators/natal-chart-calculator): Calculate your Free Birth Chart Calculator (Natal Chart) online with our free interactive astrology tool. Explore accurate natal aspects, planetary placements. | API: /api/v1/tools/natal-chart-calculator/calculate - [Birth Chart Calculator Without Accurate Time Calculator](https://www.yesastrology.com/en/tools/chart-calculators/birth-chart-without-accurate-time-calculator): Get your free birth chart without an exact time. Instant natal chart outputs and practical planetary analysis, ready in seconds. Calculate your astrology chart. | API: /api/v1/tools/birth-chart-without-accurate-time/calculate - [Birth Time Rectification Calculator](https://www.yesastrology.com/en/tools/chart-calculators/birth-time-rectification-calculator): Pin down your exact birth time with our rectification calculator. Get instant natal chart outputs and practical planetary analysis. Calculate your astrology. | API: /api/v1/tools/birth-time-rectification/calculate - [Composite Relationship Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/composite-relationship-chart-calculator): Enter two birth details and get an instant composite chart. See planetary aspects, house placements, and synastry insights for free. Calculate your astrology. | API: /api/v1/tools/composite-relationship-chart/calculate - [D10 Dasamsa Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/d10-dasamsa-chart-calculator): Calculate your D10 Dasamsa chart instantly with our free online tool. Get instant career insights and planetary analysis from your natal data. | API: /api/v1/tools/d10-dasamsa-chart-calculator/calculate - [Davison Relationship Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/davison-relationship-chart-calculator): Generate a Davison relationship chart from the time-space midpoint of two birth charts. Understand the soul of your relationship with this free tool. | API: /api/v1/tools/davison-relationship-chart/calculate - [Draconic Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/draconic-chart-calculator): Calculate your Draconic chart free with instant natal outputs and practical planetary analysis. Explore your karmic soul blueprint online now. | API: /api/v1/tools/draconic-chart-calculator/calculate - [Draconic Synastry Calculator](https://www.yesastrology.com/en/tools/chart-calculators/draconic-synastry-calculator): Compare two Draconic charts to reveal karmic bonds, soul contracts, and spiritual partnerships. Free tool with detailed aspect interpretation. | API: /api/v1/tools/draconic-synastry-calculator/calculate - [Electional Astrology Calculator](https://www.yesastrology.com/en/tools/chart-calculators/electional-astrology-calculator): Use our Electional Astrology Calculator to find the most auspicious date and time for starting projects, marriage, or travel. Calculate your astrology chart. | API: /api/v1/tools/electional-astrology-calculator/calculate - [Electional Date Finder Calculator](https://www.yesastrology.com/en/tools/chart-calculators/electional-date-finder-calculator): Rank up to 30 candidate local times in a date range using a transparent, event-specific symbolic chart heuristic. | API: /api/v1/tools/electional-date-finder-calculator/calculate - [Harmonic Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/harmonic-chart-calculator): Once you've mastered the basics, advanced harmonic chart interpretation opens up a whole new layer of astrological insight. This involves looking beyond the... | API: /api/v1/tools/harmonic-chart-calculator/calculate - [Horary Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/horary-chart-calculator): Cast a horary chart for the exact moment of your question to receive direct answers. Our calculator provides precise timing and authoritative astrological. | API: /api/v1/tools/horary-chart-calculator/calculate - [House Systems Comparison Calculator](https://www.yesastrology.com/en/tools/chart-calculators/house-systems-comparison-calculator): Compare the same birth chart across Placidus, Koch, Equal, Regiomontanus, and Whole Sign where supported. | API: /api/v1/tools/house-systems-comparison-calculator/calculate - [Human Design Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/human-design-chart-calculator): Create your free Human Design chart instantly to discover your Type, Strategy, Authority, and Profile. Unlock your unique energy blueprint and defined centers. | API: /api/v1/tools/human-design-chart-calculator/calculate - [Interactive AstroMap Explorer & Relocation Inspector](https://www.yesastrology.com/en/tools/chart-calculators/interactive-astrocartography-map-calculator): Plot your natal chart on a world map, see how relocation shifts planetary influences, and get instant, practical astrological insights. | API: /api/v1/tools/interactive-astrocartography-map-calculator/calculate - [Life Cycles & Planetary Returns Timeline](https://www.yesastrology.com/en/tools/chart-calculators/planetary-returns-lifecycle): Track Saturn, Jupiter, Uranus, Chiron and Nodal returns on a personal timeline from birth to 90+. See your life cycles. Calculate your astrology chart online. | API: /api/v1/tools/planetary-returns-lifecycle/calculate - [Lunar Return Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/lunar-return-chart-calculator): A Lunar Return chart is a snapshot of the sky at the exact moment the Moon returns to its position in your birth chart. This happens once every 27.3 days -... | API: /api/v1/tools/lunar-return-chart-calculator/calculate - [Navamsa (D9) Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/navamsa-chart-calculator): Compute your free Navamsa (D9) chart for Vedic marriage, dharma, and spiritual analysis. Understand planetary strengths and spouse compatibility. | API: /api/v1/tools/navamsa-chart-calculator/calculate - [Personal Transit Calendar & Exact Transit Finder](https://www.yesastrology.com/en/tools/chart-calculators/personal-transit-calendar): Find upcoming exact transits to your natal chart, ordered by local date and time. Learn how to interpret transits with YesAstrology's personal calendar. | API: /api/v1/tools/personal-transit-calendar/calculate - [Planetary Return Finder](https://www.yesastrology.com/en/tools/chart-calculators/planetary-return-finder): Calculate your planetary return dates instantly with our free Planetary Return Finder. Get your natal chart, track Saturn, Jupiter, and solar cycles, and. | API: /api/v1/tools/planetary-return-finder/calculate - [Primary Directions Calculator](https://www.yesastrology.com/en/tools/chart-calculators/primary-directions-calculator): Map major lifetime thresholds using traditional primary directions. Free calculator with precise Ptolemaic method, orbs, and house system options. | API: /api/v1/tools/primary-directions-calculator/calculate - [Profected Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/profected-chart-calculator): Calculate your Profected Chart Calculator online with our free interactive astrology tool. Explore accurate natal aspects, planetary placements, and celestial. | API: /api/v1/tools/profected-chart-calculator/calculate - [Relationship Compatibility Birth Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/relationship-compatibility-birth-chart-calculator): A relationship compatibility birth chart is a specialized astrological tool that compares two individuals' natal charts to assess harmony, chemistry, and... | API: /api/v1/tools/relationship-compatibility-birth-chart/calculate - [Relationship Transit Calendar](https://www.yesastrology.com/en/tools/chart-calculators/relationship-transit-calendar-calculator): Compare exact transit-to-natal contacts for two people across a selected range, with each contact shown in that person’s birth time zone. | API: /api/v1/tools/relationship-transit-calendar-calculator/calculate - [Relocation Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/relocation-chart-calculator): Recalculate your natal houses and angles for a specific destination city. Instantly see how your chart shifts to reveal new life paths. | API: /api/v1/tools/relocation-chart-calculator/calculate - [Saturn Return Calculator](https://www.yesastrology.com/en/tools/chart-calculators/saturn-return-calculator): Calculate your exact Saturn Return dates with our free calculator. Learn what your first, second and third Saturn Returns mean for your life path, career... | API: /api/v1/tools/saturn-return-calculator/calculate - [Secondary Progressed Moon Calendar & Phase Calculator](https://www.yesastrology.com/en/tools/chart-calculators/progressed-moon-calendar-calculator): Track your Progressed Moon sign changes, house ingress, and annual progressed phase timeline with this free calculator. Calculate your astrology chart online. | API: /api/v1/tools/progressed-moon-calendar-calculator/calculate - [Secondary Progressions Calculator](https://www.yesastrology.com/en/tools/chart-calculators/secondary-progressions-calculator): Calculate your Secondary Progressed chart using the day-for-a-year method. See your progressed Sun, Moon cycle, and planetary evolution for any year. | API: /api/v1/tools/secondary-progressions-calculator/calculate - [Sidereal Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/sidereal-chart-calculator): Calculate your birth chart with the sidereal zodiac and Lahiri ayanamsa. Get accurate planetary placements for Vedic astrology. Calculate your astrology chart. | API: /api/v1/tools/sidereal-chart-calculator/calculate - [Solar Arc Directions Calculator](https://www.yesastrology.com/en/tools/chart-calculators/solar-arc-calculator): Calculate your Solar Arc directed chart and see how your natal planets have progressed. Free tool for timing life events with astrological precision. | API: /api/v1/tools/solar-arc-calculator/calculate - [Solar Return Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/solar-return-chart-calculator): Generate your free solar return chart to uncover the key themes, opportunities, and challenges for your coming year. Learn how to read solar return houses,... | API: /api/v1/tools/solar-return-chart-calculator/calculate - [Solar Return Synastry Calculator](https://www.yesastrology.com/en/tools/chart-calculators/solar-return-synastry-calculator): Compare two people's solar return charts side by side. Discover shared annual themes, relationship timing, and planetary connections with this free tool. | API: /api/v1/tools/solar-return-synastry-calculator/calculate - [Synastry Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/synastry-chart-calculator): Compare two natal charts with our free synastry calculator. Discover planetary aspects, house overlays, and relationship dynamics for love, friendship, and... | API: /api/v1/tools/synastry-chart-calculator/calculate - [Transit Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/transit-chart-calculator): Generate a free transit chart to see how current planetary movements affect your natal chart. Learn to read transits for timing and growth. | API: /api/v1/tools/transit-chart-calculator/calculate - [Twin Flame & Karmic Bond Synastry Calculator](https://www.yesastrology.com/en/tools/chart-calculators/twin-flame-karmic-synastry-calculator): Comprehensive astrological analysis, planetary mechanics, and actionable insights for Twin Flame & Karmic Bond Synastry Calculator. Discover key timings an | API: /api/v1/tools/twin-flame-karmic-synastry-calculator/calculate - [Vedic Astrology Chart Calculator](https://www.yesastrology.com/en/tools/chart-calculators/vedic-astrology-chart-calculator): Generate a free Vedic astrology chart with Lahiri ayanamsa, nakshatras, planetary dasas and strengths. Get your sidereal birth chart instantly. | API: /api/v1/tools/vedic-astrology-chart/calculate - [Vedic Janam Kundli Calculator](https://www.yesastrology.com/en/tools/chart-calculators/kundli-calculator): Generate your free Vedic Janam Kundli online. Learn how to read your birth chart, understand houses, planets, nakshatras, and dashas in Vedic astrology. | API: /api/v1/tools/kundli-calculator/calculate - [Vedic Vimshottari Dasha & Planetary Periods Calculator](https://www.yesastrology.com/en/tools/chart-calculators/vedic-vimshottari-dasha-calculator): Comprehensive astrological analysis, planetary mechanics, and actionable insights for Vedic Vimshottari Dasha & Planetary Periods Calculator. Discover key | API: /api/v1/tools/vedic-vimshottari-dasha-calculator/calculate - [Vedic Vivah Muhurat Finder](https://www.yesastrology.com/en/tools/chart-calculators/vedic-vivah-muhurat-calculator): Scan sampled wedding-time windows under one named Lahiri sidereal Panchanga screening profile and show its gates and omissions. | API: /api/v1/tools/vedic-vivah-muhurat-calculator/calculate - [Whole Sign Houses Calculator](https://www.yesastrology.com/en/tools/chart-calculators/whole-sign-houses-calculator): Calculate your natal chart with whole sign houses. Master traditional Hellenistic astrology techniques for precise, authentic celestial readings. | API: /api/v1/tools/whole-sign-houses-calculator/calculate ## Frequently asked questions ### What is a Chart Calculator in astrology? A Chart Calculator is a digital tool that uses your birth date, exact time, and location to calculate the positions of the Sun, Moon, and planets at a given moment. It also calculates house cusps and aspects. You can use it to generate natal charts, transit charts, solar return charts, lunar return charts, and many other types of astrological maps. ### How accurate does my birth time need to be? For the rising sign and house cusps, a few minutes can make a difference. For solar return and lunar return charts, the exact time is critical because the return moment is calculated to the second. If you do not know your exact time, use the best estimate and focus on planet signs and aspects, which are less time-sensitive. ### Can I use a Chart Calculator if I don't know my birth time? Yes. Many calculators offer a 'time unknown' option that uses sunrise as a default. However, the rising sign and house placements will be uncertain. You can still get accurate planet signs and aspects, which are valuable on their own. For the most reliable results, try to find your recorded birth time. ### What is a solar return chart used for? A solar return chart is calculated for the moment the Sun returns to its exact natal position each year. It maps the themes, challenges, and opportunities of your personal new year. It is one of the most popular tools for annual forecasting and is used by both beginners and professionals. ### What is the difference between secondary progressions and solar arc directions? Secondary progressions use a symbolic day-for-a-year method to show inner psychological development. Solar arc directions advance all planets by the same arc, revealing external events and milestones. Progressions are more about internal growth, while solar arcs are more about external timing. Both are advanced predictive tools. ### How do I choose the right Chart Calculator for my question? Match the chart type to your question. For personality and life path, use a natal chart. For current influences, use a transit chart. For the year ahead, use a solar return chart. For relationships, use synastry or composite charts. For timing, use progressions, solar arcs, or annual profections. The more specific your question, the easier the choice. ### Are Chart Calculators accurate for relationship compatibility? Yes, when used correctly. Synastry charts compare two natal charts to show interaction dynamics. Composite charts show the relationship as a third entity. Both are accurate when the birth data is precise. For a quick check, a name and zodiac compatibility calculator can be fun, but full synastry and composite readings are far more reliable. ### What house system should I use in a Chart Calculator? Placidus is the most common in Western astrology and is the default in most calculators. Whole Sign is popular in Hellenistic and Vedic traditions. Koch and Equal are also used. The choice affects house placements, especially for birth times near dawn or dusk. If you are unsure, start with Placidus and compare with another system later. ### Can AI-powered chart analysis replace a human astrologer? No. AI can generate accurate interpretations quickly, but it cannot replace human intuition, lived experience, or the ability to read subtle nuances. AI is best used as a learning tool or a supplement to a professional reading. It provides a solid foundation, but a human astrologer adds depth and personal connection. ## Explore more - [Astrocartography Chart Calculator (Astro Map) Calculator](https://www.yesastrology.com/en/tools/chart-calculators/astrocartography-chart-calculator): Generate your free astrocartography chart to see how locations worldwide influence your natal chart. Calculate your astrology chart online for instant. - [Astrocartography City Finder Calculator](https://www.yesastrology.com/en/tools/chart-calculators/astrocartography-city-finder-calculator): Rank 2–5 selected cities by the closest planetary MC/IC meridian and compare their relocated chart angles and house assignments. - [Birth Chart Calculator (Natal Chart) Calculator](https://www.yesastrology.com/en/tools/chart-calculators/natal-chart-calculator): Calculate your Free Birth Chart Calculator (Natal Chart) online with our free interactive astrology tool. Explore accurate natal aspects, planetary placements.