Lo Shu Grid Calculator plot your 3×3 grid from your date of birth
Enter your date of birth and see the full grid: which digits repeat, which are missing entirely, how your three planes sit, and which of the eight arrows your birth date forms.
Lo Shu shows the pattern. For the planetary side, run the free Chaldean analysis for your Moolank and Bhagyank.
How to plot a Lo Shu grid by hand
The layout never changes. It is a magic square, so every row, column and diagonal adds to 15:
Take every digit of your full date of birth and mark it in its cell. Repetition is not collapsed: a digit that appears three times is written three times, because repeats intensify that energy. Zero is never plotted, it stands for absence. Whatever cell stays empty is a missing number.
Worked example, 14 May 1985. The digits are 1, 4, 0, 5, 1, 9, 8, 5. Dropping the zero leaves 1 twice, 5 twice, and one each of 4, 8 and 9. Cells 2, 3, 6 and 7 stay empty, so those are the missing numbers.
The three planes
The grid is read in horizontal bands as well as cell by cell.
- Top row, 4-9-2, the mental plane. How the person thinks, plans and imagines.
- Middle row, 3-5-7, the emotional plane. Sensitivity, balance and inner life. The most revealing row for emotional intelligence.
- Bottom row, 8-1-6, the physical plane. How effectively the person acts in the material world.
A full row means strong energy in that plane. An empty row marks an area needing conscious development. A full row with several repeats suggests overdevelopment: the energy dominates, but without much counterweight.
All eight arrows
The grid contains exactly eight straight lines, three rows, three columns and two diagonals. Three filled cells on a line form an arrow of strength; the same line left entirely empty is the matching arrow of weakness. No other combination is an arrow, because no other set of three cells sits in a straight line.
| Line | Position | All three present | All three absent |
|---|---|---|---|
4-9-2 | Top row | Arrow of the Mind Planning, memory and imagination work together. | Arrow of Poor Memory Thoughts scatter before they finish forming. |
3-5-7 | Middle row | Arrow of Emotional Balance Feeling, centre and reflection are all available. | Arrow of Scepticism Learns by trial and error rather than trust. |
8-1-6 | Bottom row | Arrow of Practicality Ideas reliably become finished things. | Arrow of Disorder Follow-through needs external structure. |
4-3-8 | Left column | Arrow of Planning Naturally organises work into steps. | Arrow of Confusion Order has to be imposed deliberately. |
9-5-1 | Middle column | Arrow of Determination Decides, and holds the decision. | Arrow of Hesitation Choices get revisited long after they are made. |
2-7-6 | Right column | Arrow of Activity Emotion converts into visible output. | Arrow of Passivity Waits for momentum instead of starting it. |
4-5-6 | Diagonal | Arrow of Compassion Reads other people generously and accurately. | Arrow of Hypersensitivity Takes correction harder than it is meant. |
2-5-8 | Diagonal | Arrow of Spiritual Insight Comfortable with what cannot be proven. | Arrow of Frustration Effort and reward feel chronically out of step. |
What each missing number means
A missing number is not a defect. It marks an energy you carry less of by default, so it has to be built deliberately instead of relied on.
Lo Shu and Chaldean together
The two systems answer different questions, which is why they are worth running side by side. Chaldean reduces you to single numbers with planetary rulers, your Moolank from the day of birth and your Bhagyank from the full date. Lo Shu refuses to reduce, and shows the distribution instead.
The combination is where it gets useful. Someone with Moolank 5 carries Mercury's quick, communicative energy, but if 1 is missing from their grid, self-expression is still the thing they have to work at consciously. The vibration says one thing, the pattern qualifies it.
For the full Chaldean side, including name number and compound number, run the free analysis or read the long-form Lo Shu guide.
Common questions
What is a Lo Shu grid?
A 3x3 magic square from ancient China, arranged 4-9-2 / 3-5-7 / 8-1-6, where every row, column and diagonal sums to 15. In numerology the digits of your date of birth are plotted onto it to show which energies you carry in abundance and which are absent.
How do I calculate my Lo Shu grid?
Write your date of birth in full, then place every digit into its matching cell. A digit appearing three times is written three times, because repetition intensifies that energy. Zero is never plotted; it represents absence. Any cell left empty is a missing number.
What do missing numbers in the Lo Shu grid mean?
They mark energies you have less of by default, so they must be developed deliberately rather than relied on. They are lessons, not defects. Missing 5 matters most, since 5 is the centre of the grid and governs balance.
What are the arrows in a Lo Shu grid?
The grid contains exactly eight straight lines: three rows, three columns and two diagonals. A line whose three cells are all filled is an arrow of strength. The same line with all three cells empty is the matching arrow of weakness, such as the Arrow of Frustration when 2, 5 and 8 are all absent.
Is the Lo Shu grid the same as Chaldean numerology?
No, and they answer different questions. Chaldean reduces you to single numbers with planetary rulers, such as Moolank and Bhagyank. Lo Shu ignores reduction and shows the pattern of your digits instead. Read together, one gives the vibration and the other gives its distribution.
Does a repeated number in the Lo Shu grid make it stronger?
Usually, but not without limit. Two of a digit strengthens it. Three or more tends to overexpress it, so the trait starts to work against the person, for example a triple 1 becoming difficulty staying quiet rather than strong communication.
Keep reading
- Lo Shu Grid Explained, the long-form guide with origins and worked detail.
- Moolank 1-9, what your day-of-birth number means.
- Complete Chaldean Numerology Guide.
- Our methodology, exactly how each number is calculated.
- Link or embed these tools on your site (badges, tracked URLs, widget).