Graph Paper Generator
Generate custom graph paper in A4 or US Letter, with standard or custom grid spacing, then print it directly or save as a PDF.
About this graph paper generator
This tool draws a precise grid using real physical measurements rather than an approximate image, so what you see reflects genuine millimeter or inch spacing on the page — a 10 mm grid prints as an actual 10 mm grid, not a resized graphic that drifts slightly depending on your printer. Choose A4 or US Letter to match the paper you'll actually load, portrait or landscape, and one of four common grid sizes: 5 mm for detailed technical sketching, 10 mm (1 cm) for general-purpose graphing and most school use, or quarter-inch and half-inch for the standard engineering and architecture grid sizes used throughout the US.
The custom option unlocks any spacing you need in millimeters or inches, useful for matching a specific existing notebook or technical drawing standard. Line color defaults to a pale blue reminiscent of classic engineering graph pads — light enough not to compete with pencil or ink work — but you can pick any color. The margin setting adds blank space around the entire grid, which matters if you plan to hole-punch the page for a binder or ring folder.
Printing happens through your browser's own print function rather than a downloaded file, which keeps this tool free of any added software dependency. Use "Print / Save as PDF" and choose your physical printer, or select "Save as PDF" (or "Microsoft Print to PDF" on Windows) in the print dialog if you want a PDF file instead of a paper copy — either way, make sure your print dialog's scale is set to 100% or "actual size," since some printers default to a "fit to page" scaling option that would throw off the exact grid spacing.
Nothing you configure here is uploaded anywhere; the grid is drawn entirely in your browser.
Under the hood, the grid lines are generated using your browser's own physical measurement units (millimeters and inches) rather than a fixed-resolution image, which is what keeps the spacing accurate regardless of your screen or printer's pixel density — the same 10 mm setting means exactly 10 mm whether it renders on a phone screen or a laser printer.
Frequently asked questions
Will the grid spacing print at the exact size I chose?
Yes, as long as your print dialog is set to 100% scale or "actual size." Many printers default to "fit to page," which would shrink or stretch the grid slightly — check that setting before printing.
What grid size should I use?
5 mm suits detailed technical sketching, 10 mm (1 cm) is the common general-purpose size for school and everyday graphing, and quarter-inch or half-inch match standard US engineering and architecture grids. Use "Custom" for anything else.
Can I save this as a PDF instead of printing on paper?
Yes. In the print dialog that opens, choose "Save as PDF" (or "Microsoft Print to PDF" on Windows) instead of a physical printer.
Does this work for both A4 and US Letter paper?
Yes, select whichever matches the paper you'll print on. Choosing the wrong size relative to what's loaded in your printer is the most common cause of a page printing across two sheets or with unexpected margins.
Is anything about my configuration saved or uploaded?
No. The grid is generated entirely in your browser, and nothing you choose here is sent anywhere.