2 mm graph paper
A fine 2 mm grid — roughly 95 squares across an A4 sheet. For work where 5 mm is too coarse to resolve what you need.
Opens with these settings already loaded. Change anything you like, then download as PDF, PNG or SVG.
Where a fine grid earns its keep
Two millimetres is the working scale for laboratory plotting where you need to read a value between gridlines, for detailed cross-sections, and for scale drawings at 1:50 where a square is 10 cm. Below 2 mm most people cannot reliably distinguish adjacent lines by eye, and the sheet turns into grey texture.
Line weight becomes critical
At this density, line weight matters more than on any other grid. A 0.5 pt line at 2 mm spacing covers about a tenth of the paper in ink; the same weight at 10 mm covers a fiftieth. Drop the weight and lighten the colour, or the sheet reads solid grey. If you are printing on an inkjet, expect some bleed to close up the finest lines.
Add major lines or you will lose count
Counting to a coordinate on a 2 mm grid without heavier lines is genuinely difficult. Turn on major lines every 5 squares for a centimetre grid over the top, which is exactly how commercial millimetre paper is printed.
Printing it accurately
This only measures correctly if your printer doesn't rescale the page. In the print dialog set Scale: 100% — not "Fit to page" or "Shrink oversized pages". If you're not sure it worked, print the calibration page, measure the ruler on it with a real ruler, and it will tell you exactly what your printer is doing to the page.