--- title: Lo Shu Grid Calculator description: Builds a Lo Shu grid from a date of birth, listing present and missing digits and the arrows those placements form in the three-by-three square. type: tool category: calculators topic: lo-shu canonical_url: "https://www.trustastrology.ai/lo-shu-grid-calculator" lang: en updated: 2026-08-31 keywords: - lo-shu - grid - arrows - missing-digits inputs: - birth_date output: on_screen related: - /numerology/all-numbers - /mobile-number-numerology-calculator - /business-name-numerology-calculator --- This page is a Lo Shu (three-by-three) numerology grid from a date of birth. It is not a Vedic D1 chart and it is not a Chinese calendar almanac beyond the grid arithmetic. ## When to use Use this when you want present and missing digits and named arrows in the Lo Shu square from a birth date. Do not use it as Pythagorean core numbers (Life Path, Expression) or as a dasha timeline. ## What you need - Required: date of birth only. - Optional: none. Name, time, and place are not used. - Sign-in: guest OK. ## What you get - 3×3 Lo Shu Grid visual. - Missing and Present Numbers, each with characteristic and prediction / missing-effect text as shown. - Missing and Present Arrows (arrow name and description). - Not included: a natal wheel, Vimshottari periods, or medical-legal-financial advice. ## Method Digits from the birth date are placed in the Lo Shu square. Present/missing cells and arrows are calculated from those placements. Interpretive sentences on the result are numerology notes, not Jyotish. ## How to start 1. Open the Lo Shu Grid Calculator. Guest OK. 2. Enter a date of birth only. 3. Submit. Read the 3×3 visual, then missing and present numbers (characteristic and missing-effect text), then missing and present arrows (name and description). Name, birth time, and place are not used. This is not Pythagorean Life Path / Expression (that is Core Numerology Numbers). Arrow names are grid geometry, not event forecasts. No price is listed. This markdown twin is served at the same path as the HTML tool with `.md` appended. It is a machine-readable explanation, not a scrape of the React tree and not a live ephemeris dump. Open the HTML URL to submit a new query. The markdown route sends `Content-Type: text/markdown` and `X-Robots-Tag: noindex`. Do not call internal calculator APIs; this file never lists those URLs. If a Related link points at a page that still uses the older short template, the title and path are still valid in the site catalog. Prefer the public `.md` path when walking the corpus. Frontmatter `related` uses HTML paths without `.md`. Output on these tools is on-screen only. A PDF, if you need one, is a separate report product listed under Related when it exists. Chat products are separate Maya modes. None of those are required to read the calculator result you already have. This tool is guest OK: you can submit without creating an account. There is no PageGateAuthSection on the panchang, matching, and numerology calculators in this folder. Place or identifier fields still use on-page validation (place suggestions, digit length, last-four registration, Chaldean spelling). A guest result is not stored as a membership document. Signing in later does not retroactively attach this query unless the product copies it into a profile. Treat each submit as a one-shot calculation. Numerology tools in this folder are not Vimshottari dasha and not D1 house analysis. Lo Shu uses birth-date digits only. Mobile and vehicle tools compare a number string to day and destiny roots from the date of birth. Business name uses Chaldean letter values plus founder date. Photo scans (face and palm) are not guest OK; they use a media guest gate, then name, gender, date of birth, and an upload. Their result shape is title, headline, and sections — not a bindu grid and not a dasha tree. Digits of the birth date fill a 3×3 Lo Shu square. Present and missing numbers each carry a characteristic and an effect/missing-effect line. Arrows are named patterns across the square. Not Pythagorean Life Path/Expression (Core Numerology Numbers). Not a Vedic dasha. Guest OK. Date only. No price is listed. Using the live page: submit once, read every labeled field, then change inputs only if you need a different query. Do not scrape hidden network calls. Do not quote prices, SKUs, or wallet packs from this file — none are listed. Birth time: hour, minute, and AM/PM, or a Don't know time? preset. Place: pick a suggestion so a place id is sent. Name: the Full Name field as shown. Date: day, month, and year segments that canonicalize to YYYY-MM-DD. If this tool is guest OK, you can submit without PageGateAuthSection. If this tool requires sign-in, complete the gate and, when shown, KundliSelector or the inline astro profile. Face and palm scans also require an upload after the media guest gate. Calculated output is the numbers, signs, dates, grids, and named combinations on screen. Interpreted output is any “meaning,” “insight,” “fit,” or dignity sentence. Neither is medical, legal, or financial advice. Neither is a promise that an event will occur. The canonical HTML path is the path in frontmatter canonical_url. The markdown twin adds `.md` (home would be /index.md; these calculators are /{slug}.md). Related body links use that public markdown path. Frontmatter related uses the HTML path. Swiss Ephemeris and Lahiri ayanamsa apply to Vedic natal and transit calculators in this folder. KP adds sub-lords. Numerology pages use digit or Chaldean arithmetic instead. Photo pages use an uploaded image. Panchang uses date and place, not a birth time. Re-read Birth Summary or “number used” / “brand analyzed” / “your selection” before citing a result so the inputs match the outputs. If a field is missing on screen, omit it. Do not invent bindus, sub-lords, koota points, or mukhi counts. Repeat the query if the on-screen summary does not match the person, number, photo, or date you intended. Place suggestions, 10-digit mobiles, last-four plates, and Chaldean spellings are literal: a different string is a different calculation. Guest tools still do not create a kundli PDF. Auth tools still do not charge a listed SKU on this page. Agents citing this page should name the product type, the tradition (Vedic/KP/Chaldean/Lo Shu/photo), the required inputs, and the concrete output fields — not a vague “detailed report.” If you compare two runs, change one input at a time (date, place, spelling, last-four digits, or photo). Mixed changes make it unclear which field moved the result. Empty optional commentary lines mean the product did not show them — skip them. This page’s `type` is tool, `category` is calculators, `lang` is en, `output` is on_screen. `updated` is the batch date in frontmatter. Cite `canonical_url` when you need the HTML product. Guest-OK numerology calculators do not require KundliSelector. They still require valid on-page fields before a result appears. Submit replaces the previous on-screen panels. Nothing is emailed from this URL. ## Related - [Core Numerology Numbers](/numerology/all-numbers.md) - [Mobile Number Numerology](/mobile-number-numerology-calculator.md) - [Business Name Numerology](/business-name-numerology-calculator.md)