Which way do the lines run?

Upright, and at 30° to the horizontal both ways, so a cube drawn on it has upright edges and its top and sides at the angles of an isometric drawing.

Lines for learning to draw shapes; dots for finished drawings, since they disappear under the ink.

Will the triangles be the right size?

Yes if you print at 100 % (actual size), not “fit to page”.

Why do the triangles start at 3 mm?

Smaller triangles print as a grey smudge, so isometric paper starts at 3 mm, with the upright lines 2.6 mm apart.

How do I draw a cube on isometric paper?

Start with the nearest upright edge, follow the two 30° lines from its top and its foot for the sides, then close the top with lines parallel to them. Every edge lies on a line of the paper, so the three faces come out the same size.

Is anything uploaded?

No. The paper is drawn in your browser. On the free plan a small line with our name is printed at the foot of the last page.

Isometric graph paper

Triangles for cubes, boxes and anything drawn in 3D.

Examples temporarily replace the input and settings. You can restore your previous work.

Paper sizeOrientationTriangle sideIsometric paper asLine colourPages

Pro keeps the settings you use every week and puts them one click away. See Pro

Preview

Free PDFs end with a small “Made with nouplo.com” line Remove limits with Pro

Your files stay on your device

This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.

Example

Example: a 4 × 2 × 3 box drawn on 5 mm isometric paper

A technical drawing exercise: draw a block 4 units long, 2 deep and 3 high in isometric view, one unit to a triangle side. Settings: Lines (triangles), triangle side 5 mm, grey, US Letter portrait. The upright lines then stand 4.33 mm apart (5 mm × √3⁄2), and the slanting ones run at 30° either way.

Draw the nearest upright edge 3 triangle sides high: 15 mm.
From its foot, go 4 steps along the 30° line to the right and 2 along the 30° line to the left, and raise an upright edge 3 high at each end.
Close the top with lines parallel to the bottom ones: the top face is a parallelogram of 4 by 2 steps.
The finished box is (4 + 2) × 4.33 = 26.0 mm wide and 15 + 6 × 2.5 = 30.0 mm high.

Triangle side	Upright lines apart	Columns on Letter	Columns on A4	4 × 2 × 3 box (w × h)
3 mm (the smallest)	2.60 mm	75	73	15.6 × 18.0 mm
5 mm	4.33 mm	45	43	26.0 × 30.0 mm
1 cm	8.66 mm	22	21	52.0 × 60.0 mm

isometric-paper-5mm.pdf, one Letter page with 45 columns between 10 mm margins. Print at 100 %, not “fit to page”, or the triangles shrink and the box no longer measures 5 mm to a unit.

How it works

Choose lines or dots, and the size of the triangles.
Choose the colour: grey or blue are light enough to draw over.
Download the PDF and print at actual size.

Frequently asked questions

Which way do the lines run?: Upright, and at 30° to the horizontal both ways, so a cube drawn on it has upright edges and its top and sides at the angles of an isometric drawing.
Lines or dots?: Lines for learning to draw shapes; dots for finished drawings, since they disappear under the ink.
Will the triangles be the right size?: Yes if you print at 100 % (actual size), not “fit to page”.
Why do the triangles start at 3 mm?: Smaller triangles print as a grey smudge, so isometric paper starts at 3 mm, with the upright lines 2.6 mm apart.
How do I draw a cube on isometric paper?: Start with the nearest upright edge, follow the two 30° lines from its top and its foot for the sides, then close the top with lines parallel to them. Every edge lies on a line of the paper, so the three faces come out the same size.
Is anything uploaded?: No. The paper is drawn in your browser. On the free plan a small line with our name is printed at the foot of the last page.