Toolwoven PaperGraph paper, drawn to scale

Graph paper generator Sizes & uses

Graph Paper Sizes and Spacing Guide

Which grid to print for which job — 1/4 inch quad, 1/5 inch engineering, 5 mm, 1 cm, 1/10 inch, isometric and dot grid — and how A3, A4, A5, Letter, Legal and 11×17 compare in millimetres and inches. Every suggestion has an Open link that loads the exact sheet in the generator, ready to download as a true-size PDF.

Source a standard, curriculum or manufacturer spec, linked in Sources. Rule of thumb common practice and our own experience, not a rule.

Grid spacings and what they are for

Samples are drawn at the same scale as each other so you can compare density; they are not life-size on screen. Square counts assume the generator's default 10 mm page margin.

  1. 1/4 inch quad 6.35 mm · 4 squares per inch

    • US middle and high school maths. Coordinate planes and graphing functions: the coordinate system is introduced in grade 5 (CCSS 5.G.A.1–2) and extended to all four quadrants in grade 6 (6.NS.C.8). Source [4] [5] Choosing 1/4 in for it: rule of thumb
    • Architecture and room-planning sketches. At the common residential plan scale 1/4″ = 1′-0″, one square is one foot. An 11×17 sheet holds 40 × 64 squares. Source [6]
    • Pixel art and sprite sketches. One square per pixel, big enough to fill with a marker; a light grey grid keeps the colours dominant. Rule of thumb

    US quad-ruled pads usually have two, four or five squares per inch. Source [1] Four per inch is the one people usually mean by “quad paper”. Rule of thumb

    Open: Letter, 1/4 inOpen: 11×17 floor-plan grid, heavier line every inchOpen: light grey pixel-art grid

  2. 1/5 inch engineering 5.08 mm · 5 squares per inch, heavier line every inch

    • College engineering and physics homework. Calculations, free-body diagrams and hand-drawn plots; some engineering instructors require it for submitted work. Source [1]
    • Lab and project notebooks. Five per inch is fine enough to plot to a tenth of an inch by eye and still roomy for handwriting. Rule of thumb

    Traditional engineering paper is light green or tan with 4, 5 or 10 squares per inch, printed on the back so the grid shows faintly through and mostly drops out of photocopies. Source [1] A home printer puts the grid on the front; a pale colour at 40–50 % strength gets close to that look. Rule of thumb

    Open: Letter, 1/5 in, heavier line every inchOpen: pale green “show-through” version

  3. 5 mm 0.197 in · 2 squares per centimetre

    • European school maths and general metric work. The usual squared ruling in European exercise books. Source [1]
    • Metric plan sketches. At 1:100 one square is 50 cm; at 1:50 it is 25 cm. Turn on a heavier line every 5 squares to see whole metres at 1:200 or 25 mm blocks. Rule of thumb (the arithmetic is exact; the scale is your choice)
    • Pixel art and cross-stitch charts where you want more cells per page than 1/4 in gives. Rule of thumb

    Open: A4, 5 mmOpen: A4, 5 mm, heavier every 5Open: Letter, 5 mm

  4. 1 cm 10 mm · 0.394 in

    • Grades K–3. Area by counting unit squares — the grade 3 standard names square centimetres and square inches directly (CCSS 3.MD.C.6). Source [3]
    • Arrays, bar graphs and column arithmetic with one digit per square, for children whose handwriting is still large. Rule of thumb

    Open: A4, 1 cmOpen: Letter, 1 cmOpen: Letter, 1 inch squares

  5. 1/10 inch 2.54 mm · 10 squares per inch

    • Science lab graphs where you read values off the plot — physics and chemistry lab reports, calibration curves. A heavier line every 10 squares marks whole inches. Rule of thumb
    • Dense charts such as cross-stitch or knitting patterns. Rule of thumb

    Ten per inch is one of the traditional engineering-paper rulings. Source [1] The generator's finest square grid is 2 mm, so true 1 mm “millimetre paper” is not available here; use 1/10 in or 2 mm instead.

    Open: Letter, 1/10 in, inch linesOpen: A4, 2 mm, 1 cm lines

  6. Isometric and isometric dot 60° triangle lattice · spacing = triangle side

    • 3D sketches for makers. Woodworking, 3D-printing and product ideas drawn with the three isometric axes; 11×17 gives room for a whole assembly. Rule of thumb
    • Technical drawing. Isometric axonometry is one of the representations covered by the technical-drawing standard ISO 5456-3. Source [8]
    • Middle-school geometry. Drawing solids built from cubes, and their views. Dots are easier for younger students than a full line grid. Rule of thumb
    • Organic chemistry structures. IUPAC recommends drawing most two-bond atoms with a 120° angle (zig-zag chains) and small rings as regular polygons — both land exactly on this lattice. Source [9]

    The generator's isometric sheets put lines at 90° and ±30° through the same lattice points, so every triangle is equilateral. The spacing you enter is the distance between neighbouring dots.

    Open: 11×17 isometric dot, 1/4 inOpen: Letter isometric dot, 1/4 inOpen: A4 isometric lines, 5 mmOpen: A4 isometric dot, 1 cm

  7. Dot grid 5 mm or 1/4 in

    • Bullet journals and planners. The Leuchtturm1917 Bullet Journal notebook (Edition 2) uses a 5 mm dot grid on A5-size pages. Source [7]
    • Hand lettering, sketch notes and UI wireframes — structure without lines that compete with your drawing. Rule of thumb

    Open: A5, 5 mm dotsOpen: A4, 5 mm dotsOpen: Letter, 1/4 in dots

  8. Hexagon spacing = side length

    • Chemistry ring structures. Six-membered rings drawn as regular hexagons. Source [9]
    • Tabletop game maps and tiling studies. Rule of thumb

    Open: A4 hexagons, 8 mmOpen: 11×17 hex map, 12 mm

Quick picks by grade, subject and job

A starting point, not a rule. Where a curriculum or spec backs the choice it is marked as a source; everything else is common practice.

Who / whatStart withWhyOpen
Grades K–21 cm or 1/2 in squaresBig targets for counting and early number work. Rule of thumb1/2 in
Grade 3 area1 cm and 1 in squaresCounting square cm and square in (3.MD.C.6). Source [3]1 cm 1 in
Grades 5–6 coordinate plane1/4 in or 5 mmFirst quadrant in grade 5, four quadrants in grade 6. Source [4] [5]1/4 in
Middle-school 3D solidsIsometric dot, 1 cm or 1/4 inCube drawings without line clutter. Rule of thumbIso dot
High-school algebra1/4 in or 5 mmRoom for axes, labels and several graphs. Rule of thumb5 mm
Lab science graphs1/10 in with inch linesRead values to a tenth. Rule of thumb1/10 in
College engineering1/5 in engineeringThe traditional computation-pad ruling. Source [1]1/5 in
Organic chemistryHexagon or isometric dot120° bond angles, regular rings. Source [9]Hex
Floor plans (US)1/4 in on 11×171/4″ = 1′-0″ is a common residential scale. Source [6]11×17
Makers, 3D ideasIsometric dot on 11×17Big enough for a whole assembly. Rule of thumb11×17 iso dot
Bullet journal5 mm dot grid, A5Matches the official notebook. Source [7]A5 dots
Pixel art1/4 in or 5 mm, light greyOne cell per pixel, colours stay strong. Rule of thumbLight 1/4 in

Paper sizes in millimetres and inches

A sizes follow ISO 216. Letter (ANSI A) and Tabloid (ANSI B, 11×17) are defined in ASME Y14.1; Ledger is the same sheet turned landscape. Legal is a North American size outside that standard. Source [2]

A5, A4, Letter, Legal, A3 and Tabloid sheets drawn to the same scaleA5148×210 mmA4210×297 mmLetter8.5×11 inLegal8.5×14 inA3297×420 mmTabloid11×17 inA5, A4 and A3 drawn to the same scaleA5148×210 mmA4210×297 mmA3297×420 mmLetter, Legal and Tabloid drawn to the same scale as the A sizesLetter8.5×11 inLegal8.5×14 inTabloid11×17 in
Drawn to the same scale. ISO sizes in outline, North American sizes shaded.
SizeMillimetresInchesPDF points1/4 in squares5 mm squaresOpen
A5148 × 2105.83 × 8.27419.53 × 595.2820 × 2925 × 38A5 grid
A4210 × 2978.27 × 11.69595.28 × 841.8929 × 4338 × 55A4 grid
A3297 × 42011.69 × 16.54841.89 × 1190.5543 × 6255 × 80A3 grid
Letter215.9 × 279.48.5 × 11612 × 79230 × 4039 × 51Letter grid
Legal215.9 × 355.68.5 × 14612 × 100830 × 5239 × 67Legal grid
Tabloid (11×17)279.4 × 431.811 × 17792 × 122440 × 6451 × 8211×17 grid

Inches for A sizes are rounded to two decimals. Square counts are whole squares inside the generator's default 10 mm margin, portrait. 11×17 and A3 need a printer with a large-format tray; otherwise a copy shop can print the PDF at 100 %.

Graph paper for low vision, dysgraphia and dyscalculia

Graph paper is a standard classroom accommodation for lining up numbers and problems, and bold black lines on white paper are sold specifically for low-vision writers. Source [10] [11] [12]

Bigger squares
1 cm, 1/2 in or even 1 in squares give room for one digit per square. In the generator: Spacing, up to 30 mm. APH's tactile graph sheets for blind and visually impaired students use 1/2 in squares. Source [13]
Thicker lines
0.6–1.0 mm lines stay visible without a magnifier. In the generator: Line weight, up to 1.2 mm. Rule of thumb
High contrast
Black lines at 100 % strength on plain white paper; avoid pale blue and grey. In the generator: the black swatch and Line strength 100 %. Rule of thumb
Heavier every 5th line
Blocks of 5 (or 2 for big squares) help the eye find its place and keep columns straight. In the generator: Heavier line every N squares. Rule of thumb
A clear edge
A border round the grid marks where the working area ends. In the generator: Draw a border round the grid. Rule of thumb

Ready-made accessible sheets

Letter · 1/2 in squares · 0.8 mm black lines · heavier every 2 A4 · 1 cm squares · 0.7 mm black lines · heavier every 5 Letter · 1 in squares · 1 mm black lines Letter · bold lined paper · 9/16 in spacing Letter · bold lined paper · 7/16 in spacing

The 7/16 and 9/16 in line spacings match APH's Bold Line paper. Source [12] The exact sizes above are starting points; a student's teacher of the visually impaired, occupational therapist or IEP/504 team should set what actually works. A printer cannot make raised (tactile) lines — for those, use swell paper, an embosser or a commercial raised-line product.

Sources

Checked 19 October 2026. For printing at true size, see the print checklist: choose Actual size or 100 %, never “Fit to page”.

  1. Wikipedia, “Graph paper” — quad paper rulings, engineering paper (citing MIT and Auburn University), isometric paper. en.wikipedia.org/wiki/Graph_paper
  2. Wikipedia, “Paper size” — ISO 216 A series; ANSI/ASME Y14.1 (ANSI A Letter, ANSI B Tabloid/Ledger); Legal. en.wikipedia.org/wiki/Paper_size
  3. Common Core State Standards for Mathematics, Grade 3 Measurement & Data, 3.MD.C.6. thecorestandards.org/Math/Content/3/MD
  4. Common Core, Grade 5 Geometry, 5.G.A.1–2. thecorestandards.org/Math/Content/5/G
  5. Common Core, Grade 6 The Number System, 6.NS.C.8. thecorestandards.org/Math/Content/6/NS
  6. Noble Desktop, “Understanding floor plan dimensions and scale in architectural drawings” — 1/4″ = 1′-0″ for residential plans. blog.nobledesktop.com
  7. Goulet Pens, Leuchtturm1917 Bullet Journal Notebook (Edition 2) specification — 5 mm dot grid, A5. gouletpens.com
  8. ISO 5456-3:1996, Technical drawings — Projection methods — Part 3: Axonometric representations. iso.org/standard/11503
  9. J. Brecher, “Graphical representation standards for chemical structure diagrams (IUPAC Recommendations 2008)”, Pure Appl. Chem. 80(2), 277–410, recommendations GR-3.3.1 and GR-4.1.1. doi.org/10.1351/pac200880020277
  10. Understood.org, “Classroom accommodations for dysgraphia” — graph paper to line up math problems; paper with different-coloured or raised lines. understood.org
  11. Understood.org, “Classroom accommodations for dyscalculia” — graph paper to line up numbers and problems. understood.org
  12. American Printing House (APH), Bold Line Notebook Paper — black lines on white paper for low-vision writers, 7/16 and 9/16 in line spacing. aph.org
  13. APH, Bold Line Tactile Graph Sheets — 1/2 in squares for charts and graphs for students who are blind or visually impaired. aph.org

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