观易堂
Bone Weight · Yuan Tiangang's verses

How many liang does your birth weigh?

Your birth year, month, day and hour become four weights; their total points to a four-line verse. It is a folk shortcut from old almanacs, and every rule and variant is shown.

Bone Weight · Yuan Tiangang's verses · weight tables

Bone weight online: from four weight tables to one verse

Chinese bone weight fortune telling (cheng gu) is a folk method passed down in old almanacs. The lunar birth year, month, day and hour are each looked up in a weight table, the four weights are added together in liang and qian, and the total is matched to a four-line traditional verse. Totals can only fall between 2 liang 1 qian and 7 liang 1 qian, fifty-one steps in all. This tool converts the date to the lunar calendar, looks up the tables, adds them and finds the verse in one go, and shows which year, month, day and hour each weight came from so you can check every step.

How it works

Four steps: convert, look up, add, read the verse

These four steps are the order the result page follows, and the order to check if you work it out by hand. Where traditions disagree, the result page shows both answers.

  1. Convert to the lunar calendar

    Bone weight uses the lunar calendar. A Gregorian date is converted first, and the year turns on lunar New Year's Day: a birth before the New Year belongs to the previous year, and a birth between the New Year and the start of spring also gets the result counted from the start of spring. The hour is one of twelve two-hour periods; 11 pm to 1 am is the Zi hour.

  2. Look up the year and month

    The year is looked up by its sexagenary name and weighs from 5 qian to 1 liang 9 qian; the lunar month weighs from 5 qian to 1 liang 8 qian. In a leap month, up to the 15th counts as that month and from the 16th as the next.

  3. Look up the day and hour

    The lunar day weighs from 5 qian to 1 liang 8 qian, and the hour from 6 qian to 1 liang 6 qian. A birth after 11 pm stays on the calendar date shown rather than moving to the next day; the next-day result is shown as well.

  4. Add them and read the verse

    The four weights add up to the total, with 10 qian to 1 liang. Each total has one four-line verse, taken from a text settled by comparing several independent versions line by line, never rewritten from memory. English pages add Guanyitang's own translation.

The weight tables

All four bone weight tables

These are the year, month, day and hour tables this site calculates with, exactly as the result page uses them. Versions occasionally disagree on a value; the comparison and choices are on the sources page.

Year · sexagenary cycle

  • Jia Zi1 liang 2 qian
  • Yi Chou9 qian
  • Bing Yin6 qian
  • Ding Mao7 qian
  • Wu Chen1 liang 2 qian
  • Ji Si5 qian
  • Geng Wu9 qian
  • Xin Wei8 qian
  • Ren Shen7 qian
  • Gui You8 qian
  • Jia Xu1 liang 5 qian
  • Yi Hai9 qian
  • Bing Zi1 liang 6 qian
  • Ding Chou8 qian
  • Wu Yin8 qian
  • Ji Mao1 liang 9 qian
  • Geng Chen1 liang 2 qian
  • Xin Si6 qian
  • Ren Wu8 qian
  • Gui Wei7 qian
  • Jia Shen5 qian
  • Yi You1 liang 5 qian
  • Bing Xu6 qian
  • Ding Hai1 liang 6 qian
  • Wu Zi1 liang 5 qian
  • Ji Chou7 qian
  • Geng Yin9 qian
  • Xin Mao1 liang 2 qian
  • Ren Chen1 liang
  • Gui Si7 qian
  • Jia Wu1 liang 5 qian
  • Yi Wei6 qian
  • Bing Shen5 qian
  • Ding You1 liang 4 qian
  • Wu Xu1 liang 4 qian
  • Ji Hai9 qian
  • Geng Zi7 qian
  • Xin Chou7 qian
  • Ren Yin9 qian
  • Gui Mao1 liang 2 qian
  • Jia Chen8 qian
  • Yi Si7 qian
  • Bing Wu1 liang 3 qian
  • Ding Wei5 qian
  • Wu Shen1 liang 4 qian
  • Ji You5 qian
  • Geng Xu9 qian
  • Xin Hai1 liang 7 qian
  • Ren Zi5 qian
  • Gui Chou7 qian
  • Jia Yin1 liang 2 qian
  • Yi Mao8 qian
  • Bing Chen8 qian
  • Ding Si6 qian
  • Wu Wu1 liang 9 qian
  • Ji Wei6 qian
  • Geng Shen8 qian
  • Xin You1 liang 6 qian
  • Ren Xu1 liang
  • Gui Hai6 qian

Month · lunar month

  • lunar month 16 qian
  • lunar month 27 qian
  • lunar month 31 liang 8 qian
  • lunar month 49 qian
  • lunar month 55 qian
  • lunar month 61 liang 6 qian
  • lunar month 79 qian
  • lunar month 81 liang 5 qian
  • lunar month 91 liang 8 qian
  • lunar month 108 qian
  • lunar month 119 qian
  • lunar month 125 qian

Day · lunar day

  • lunar day 15 qian
  • lunar day 21 liang
  • lunar day 38 qian
  • lunar day 41 liang 5 qian
  • lunar day 51 liang 6 qian
  • lunar day 61 liang 5 qian
  • lunar day 78 qian
  • lunar day 81 liang 6 qian
  • lunar day 98 qian
  • lunar day 101 liang 6 qian
  • lunar day 119 qian
  • lunar day 121 liang 7 qian
  • lunar day 138 qian
  • lunar day 141 liang 7 qian
  • lunar day 151 liang
  • lunar day 168 qian
  • lunar day 179 qian
  • lunar day 181 liang 8 qian
  • lunar day 195 qian
  • lunar day 201 liang 5 qian
  • lunar day 211 liang
  • lunar day 229 qian
  • lunar day 238 qian
  • lunar day 249 qian
  • lunar day 251 liang 5 qian
  • lunar day 261 liang 8 qian
  • lunar day 277 qian
  • lunar day 288 qian
  • lunar day 291 liang 6 qian
  • lunar day 306 qian

Hour · two-hour period

  • Zi hour1 liang 6 qian
  • Chou hour6 qian
  • Yin hour7 qian
  • Mao hour1 liang
  • Chen hour9 qian
  • Si hour1 liang 6 qian
  • Wu hour1 liang
  • Wei hour8 qian
  • Shen hour8 qian
  • You hour9 qian
  • Xu hour6 qian
  • Hai hour6 qian
All fifty-one totals

Every verse, from 2 liang 1 qian to 7 liang 1 qian

Each total has its own page with the Chinese verse, the English translation and how often that total occurs. Across all combinations of the four tables, about eight in ten totals fall between 3 and 5 liang, 3 liang 9 qian is the most common, and totals under 2 liang 5 qian or over 6 liang 5 qian are rare.

What the result shows

The verse first, then where it comes from

The four weights and the total

How much the year, month, day and hour each weigh, and which year name, day and hour they came from. Tap any of them to ask Guanfu why it weighs what it does.

The verse and a short comment

The four-line verse for your total, in the settled Chinese text with Guanyitang's translation. Signed-in users get a free short comment, can tap any line for an explanation, or ask Guanfu for a full reading.

The rules used

Where traditions differ, on the year boundary, leap months or the late Zi hour, the result says which reading it used and gives the other result too, rather than choosing for you.

FAQ

Bone weight fortune telling: common questions

Should I enter the lunar or Gregorian date?

Bone weight is worked out on the lunar calendar. You can enter a Gregorian date and it will be converted; the lunar date used is shown on the result so you can check it. If you already know your lunar birthday, entering it directly is safest.

Why do some sites mention 7 liang 2 qian?

The heaviest values of the four tables never fall on the same birth, so the total can reach at most 7 liang 1 qian and 7 liang 2 qian cannot occur. Many sites still include a verse for it, generally thought to be a later addition. We do not treat it as a result; the text and the explanation are on the sources page.

What if I do not know my birth hour?

The hour weighs anywhere from 6 qian to 1 liang 6 qian, so it changes the total and therefore the verse. Rather than guessing noon, check a birth record or ask family first; without the hour, treat the result loosely.

Is a heavier total a better fate?

Not in that sense. Lighter totals tend to describe early hardship and self-reliance and heavier ones good fortune, but every verse is old writing, not a judgement of a person's life. The number is simply the sum of four table values.

Is the verse the same for men and women?

Everyone gets the same verse; the main versions agree on this. One version also records a separate verse for women, which the Chinese pages show under a Female tab with a plain-language summary.

How is bone weight different from BaZi?

Bone weight adds up four table values and gives one verse in seconds, best read as a piece of folk culture. BaZi builds the four pillars and reads the balance of the five elements, the Ten Gods and the luck cycles to look at a person's structure and life stages. For a detailed look at yourself, cast a full BaZi chart.