Free Bazi Calculator (Four Pillars of Destiny)
FunTestHub's Bazi Calculator is a free, no-signup tool that turns your birth date and time into a Four Pillars chart, with Day Master, Five Elements balance and 10-year luck cycles.
| 項目 | 仕様・基準 |
|---|---|
| 年柱の切替 | 天文暦の立春節入時刻に準拠（lunar-javascript 1.7.7） |
| 換日基準 | 子正（午前00:00）基準を採用；詳細は About ページに記載 |
| プライバシー | 端末内（ブラウザ）即時計算。生年月日データの送信・保存ゼロ |
| 利用規約 | 完全無料・登録不要（広告モデルにより無料維持） |
| 鑑定項目 | 四柱命式、日干本質、五行エネルギー、10年大運、サンプル命式 |
The Four Pillars represent the Year, Month, Day, and Hour of your birth. Each pillar is composed of a Heavenly Stem and an Earthly Branch, totaling eight characters (Bazi).
| 柱 | 構成 | 鑑定の要点 |
|---|---|---|
| 年柱 (先祖・幼少期) | 年干 + 年支 (干支) | 家柄、先祖のルーツ、幼少期の運勢、社会的な第一印象 |
| 月柱 (仕事・青年期) | 月干 + 月支 (季節・節気) | 適職、才能、両親や同僚との関係、青年期の挑戦 |
| 日柱 (自分・配偶者) | 日干 (本質) + 日支 (配偶者宮) | 生まれ持った魂の本質、結婚・パートナーシップ、中年期の運勢 |
| 時柱 (未来・晩年期) | 時干 + 時支 (時間帯) | 子供運、後輩との関係、晩年の実り、潜在的な願望 |
☸️ 生年月日・出生時間入力
Enter the actual birth date and time. If the hour is unknown, use 12:00 for a three-pillar reading; the hour pillar is then indicative only.
🔒 Privacy: Your birth details never leave your browser. The chart is calculated locally on your device and nothing is stored on our servers. We use Google Analytics and advertising cookies; see our Privacy Policy.
📖 Sample Bazi Chart (Worked Example)
The chart below was computed by this site's engine for a sample birth: May 15, 1990, 10:00 (male). Use it as a reference for how to read your own chart.
| Pillar | Stem | Branch | Hidden Stems | Ten God (Stem) | Na Yin |
|---|---|---|---|---|---|
| Year | 庚 | 午 | 丁、己 | Friend (Bi Jian) | Roadside Earth |
| Month | 辛 | 巳 | 丙、庚、戊 | Rival (Jie Cai) | White Wax Metal |
| Day | 庚 | 辰 | 戊、乙、癸 | Day Master | White Wax Metal |
| Hour | 辛 | 巳 | 丙、庚、戊 | Rival (Jie Cai) | White Wax Metal |
🔢 Five Elements Count (of 8 characters)
- Metal: 4 char
- Wood: 0 char (missing)
- Water: 0 char (missing)
- Fire: 3 char
- Earth: 1 char
🛣️ First Five 10-Year Luck Cycles
- 壬午 — from 1997
- 癸未 — from 2007
- 甲申 — from 2017
- 乙酉 — from 2027
- 丙戌 — from 2037
How to read this sample
The Day Master is Geng Metal (yang metal), born in a Si month (early summer, when Fire is in season). Across the pillars, Metal appears 4 times and Fire 3 times — Metal is strong, and Fire tempers it; a single Earth feeds Metal, while Wood (wealth) and Water (output) are missing — suggesting talent expression and wealth channels need deliberate cultivation. The Year stem shows a Friend (peer) star and both the Month and Hour stems show Rival stars: strong peers with weak wealth stars favor building skills early rather than chasing money. Luck cycles run Ren-Wu, Gui-Wei, Jia-Shen from 1997, gradually strengthening Water and Wood — career expression and wealth channels open up from mid-life.
⚖️ FunTestHub Specifications vs. Traditional Apps
Audit: 100/100| Specification | FunTestHub Engine | Traditional Online Calculators |
|---|---|---|
| Account & Sign-up | 100% Free · No Sign-up · No Email | Requires registration or email paywall |
| Data Privacy | 100% Client-Side In-Browser (0ms latency) | Stored in remote server databases |
| Year Transition | Astronomical Li Chun (lunar-javascript 1.7.7) | Frequently misassigned to Lunar New Year |
| Full Output | 4 Pillars, Ten Gods, 10-Yr Luck Waves, 5 Elements | Truncated; paywalls 10-year luck pillars |
Worked Example: How FunTestHub Calculates the Year & Month Pillars
Unlike casual tools that mistakenly switch the zodiac year on January 1st or the Lunar New Year, authentic Four Pillars astrology strictly aligns the year transition with Li Chun (立春, Start of Spring) — the exact astronomical instant the Sun reaches ecliptic longitude 315°.
Month Pillars are derived identically using the astronomical moments of the 12 Jie Qi solar terms. Our calendar calculations are cross-validated against Purple Mountain Observatory ephemeris data.
Retrieving Chinese calendar and computing Bazi chart...
Charts are calculated with lunar-javascript 1.7.7, using solar-term (Jie Qi) month boundaries. Interpretations follow the classical texts Yuan Hai Zi Ping and San Ming Tong Hui. For cultural and entertainment use.
Your birth time falls between 23:00 and 24:00 (late rat hour). BaZi traditions divide on whether the day rolls at midnight (00:00) or at 23:00. Our calculator follows the mainstream midnight rollover by default (current Day Pillar: ). Under the 23:00 rollover convention, your Day Pillar advances to tomorrow (). See our Methodology & Conventions for technical details.
🎋 乾坤 四柱命式盤 🎋
| Heavenly Stem / 地支 | 年柱 | 月柱 | 日柱 | 時柱 |
|---|---|---|---|---|
| Heavenly Stem | - - | - - | - Day Master | - - |
| 地支 | - - | - - | - - | - - |
| Hidden Stems | - | - | - | - |
| 納音 | - | - | - | - |
📊 五行エネルギー強度分析
🛣️ 大運（10年ごとの運勢）
【2027 Outlook · Growth & Breakthrough Themes】
🧭 2026 ➔ 2027 Energy Shift Roadmap
🛡️ Tai Sui Alchemy & Antidote
🎁 Pro Edition 3 Immediate Deliverables:
🔒 Apple Pay / クレジットカード対応 · 1秒で即時閲覧 · 買い切り永久アクセス
金運の方位、適職・キャリア、五行健康体質、10年大運の吉凶推移を現代的に詳細解説。
📍 金運・財運の吉方位：
💡 財運格局と特質：
🛡️ 財政リスク＆資産防衛アドバイス：
🎯 2027年 転機と財運を最大化する特別鑑定
12ヶ月の運気カレンダー同期付き · Apple Pay / クレジットカード対応 (1,480円)
あなたの命式をシェア
Share your Day Master, wealth index and archetype with friends
💞 Relationship & Marriage Synastry
あなたとあの人の五行の結びつきや相性の良さを知りたいですか？生年月日から二人の相性と結婚縁を深く読み解きます。
日元性格心性
Qiong Tong Bao Jian Guide
San Ming Tong Hui Analysis
Seasonal Useful Deity Guide
Zodiac Sign & Personalities
Lunar Triple Pillars Fate
【 命理申明 】
Bazi calculator is for cultural research and entertainment only.
What is Bazi (Four Pillars of Destiny)?
How to Read Your Bazi Chart?
Interpreting a Bazi chart focuses on several key dimensions:
- Day Master (Day Stem): Represents you, your core personality, and essential characteristics.
- Five Elements Balance: Measures the counts and strengths of Gold (Metal), Wood, Water, Fire, and Earth to see your energy balance.
- The 10 Gods (Shi Shen): Represents different facets of your life, career, wealth, and family relationships based on how other elements interact with your Day Master.
- 10-Year Major Luck Cycles (Da Yun): Indicates the energetic theme of each decade of your life, working together with individual years to shape your path.
Bazi vs. Ziwei Dou Shu: Which Chinese Astrology System is More Accurate?
Bazi (Four Pillars) and Ziwei Dou Shu (Purple Star Astrology) are the two pillars of classical Chinese destiny analysis. Understanding their distinctive strengths helps you pick the right tool for your current questions:
| Comparison Dimension | Bazi (Four Pillars) | Ziwei Dou Shu (Purple Star) |
|---|---|---|
| Core Engine | Five Elements (Wu Xing) & Yin-Yang balance | 12 Life Palaces & 108 Astrological Stars with 4 Mutators |
| Best For | 10-Year luck waves, wealth capacity, element remedies | Interpersonal dynamics, marriage personality, workplace politics |
| Birth Time Dependency | Moderate. A rough reading is possible without birth hour, but the Hour Pillar will be missing. | High (exact 2-hour bracket required to assign Life Palace) |
| Strategic Value | Macro strategic timing: when to attack, expand or defend | Micro behavioral navigation: handling colleagues and lovers |
Frequently Asked Questions (FAQ)
Q: What do the "Four Pillars" refer to?
A: The Four Pillars represent the Year, Month, Day, and Hour of your birth. Each pillar is composed of a Heavenly Stem and an Earthly Branch, totaling eight characters (Bazi).
Q: Does missing a certain element in my chart mean bad luck?
A: Not necessarily. Chinese astrology values the harmony and flow of energies rather than having everything equally. Missing elements can often be balanced or compensated through your name, career choices, colors, or geographical orientation.
Q: How do I use this online Bazi chart generator?
A: Simply select your solar (Gregorian) birth date and time, and our system will automatically look up the Chinese calendar, calculate the corresponding stems and branches, and generate a comprehensive destiny and element report.
Q: What calculation rules and calendar conventions are used?
A: Charts are calculated with the lunar-javascript 1.7.7 library. Year and month pillars are divided by exact solar-term (Jie Qi) boundaries, and day pillars follow the continuous sexagenary day cycle. Calculations use the local standard time you enter; no true-solar-time (longitude) correction is applied. For details, please see our About & Methodology page.
Seeing Repeating Numbers in Daily Life? Decode Your Angelic Guidance
Beyond natal chart blueprints, the universe frequently whispers through synchronistic Angel Numbers and Numerology when major life shifts approach.
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