Isometric Graph Paper Maker

Make printable isometric graph paper at an exact scale: a 30-degree triangular grid at the spacing you set, in millimetres or inches, with adjustable line weight and colour. Preview it, then download a print-ready PDF in A4 or US Letter so every triangle measures true. Free, no sign-up.

Make free printable isometric graph paper: a triangular grid of 30-degree lines at the spacing you set, in millimetres or inches. Adjust the line weight and colour, then download a PDF that prints to scale. Used for isometric drawing and 3D sketching, technical and mechanical drawing, and designing isometric game maps and tiles.

  • Live preview before you print
  • 100% free
  • No sign-up, no app
  • A4 and US Letter
  • Works offline after first load
Read the guide: How to Draw on Isometric Paper

Print at 100% scale so each grid step measures exactly 5 mm.

Live preview

How to use it

  1. 1

    Set the grid spacing

    Enter the spacing in mm or inches to control how fine the triangular grid is.

  2. 2

    Style the lines

    Choose a thin or bold line weight and a colour, from faint grey to solid.

  3. 3

    Preview and download

    Check the preview, download the PDF, and print at 100% so the grid stays exact.

When it comes in handy

3D sketching

Draw cubes, rooms and objects in isometric projection without freehand guesswork.

Technical drawing

Lay out mechanical parts and assemblies on a true 30-degree grid.

Games and maps

Design isometric levels, dungeons and tile maps on accurate triangles.

Live preview & 100% in your browser

The PDF is built right here in your browser, sized to the exact page you choose. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

What is isometric graph paper used for?
It is a grid of equilateral triangles formed by vertical lines and two sets of 30-degree diagonals. The angles let you draw three-dimensional shapes in isometric projection, which is why it suits 3D sketching, technical drawing and isometric game design.
How is it different from square graph paper?
Square graph paper has a flat grid for plotting and measuring in two dimensions. Isometric paper adds 30-degree diagonals instead of only horizontals, so lines drawn along the grid read as the three faces of a 3D object. Use square paper for graphs and isometric for 3D drawing.
What grid spacing works best for isometric paper?
A 5 mm or quarter-inch spacing suits most sketching and gives clear triangles without crowding the page. Go finer, around 3 mm, for detailed technical work, or wider for large, bold drawings. The preview shows the density before you print.

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