Millimetre or inch spacing
Switch units and the value converts instead of resetting, so 5 mm becomes 0.2 in rather than a nonsensical five-inch grid. Anything from 1 mm engineering paper to a 25 mm planning grid is one slider away.
Graph Paper Generator
Free Graph Paper Generator with Millimetre-Exact Grids Square, coordinate, isometric & dot grids in vector PDF
A graph paper generator for people who need the squares to be the right size. Set spacing in millimetres or inches, add heavier lines every few cells, pick your line colour and weight, and export A4 or Letter graph paper that prints at true scale.
Free, no sign-up, no watermark — vector PDF and PNG straight from your browser.
Graph Paper Generator: Set the Grid, Get a Vector PDF
The preview is drawn to scale from the same geometry that goes into the PDF, so what you measure on screen is what you measure on paper.
Classic squared paper. Add a heavier line every few cells to keep long columns readable.
5 mm and 1/4 inch are the classroom standards; 1–2 mm gives engineering millimetre paper; 10 mm suits large-scale plans.
Line colour
Live preview
A4 · Portrait · 1 page(s)Your grid is drawn as vector geometry inside your browser. Nothing is uploaded and nothing is stored. How to print at actual size (100%)
A Graph Paper Generator Built Around Real Measurements
Downloaded grid images are pictures of squares. This graph paper generator draws actual geometry from the numbers you type, then hands the same geometry to the PDF.
Squares that survive the printer
The whole point of graph paper is that a square is a unit of measurement. Every sheet from this graph paper generator is written into the PDF as vector line geometry at true PostScript points, so a 5 mm grid measures 5 mm and four quarter-inch cells measure exactly one inch. Print one page, lay a ruler over ten squares, and the reading matches the number you set — no resampling, no soft edges, no mystery 96% scaling.
Four grid types, one set of controls
Square grids for arithmetic and data tables, coordinate grids with numbered axes for plotting functions, isometric triangles for 3D sketching and product design, and dot grids when you want guidance without ink under your drawing. Spacing, colour, line weight and margins behave identically across all four, so switching grid type never means relearning the graph paper generator.
Key Features of This Graph Paper Generator
Everything a drawing board, a maths class or an engineering notebook actually asks for.
Heavier lines where you need them
Choose how often a bolder line appears — every 5 cells for classic 5 mm/1 cm paper, every 10 for millimetre paper, or never. Counting cells across a page stops being guesswork.
Numbered coordinate axes
Add x and y axes in one or four quadrants and switch on tick numbers. Students get a plotting sheet with the origin already in the right place instead of drawing axes by hand.
True isometric triangles
The 60° families are computed from the grid side length, with optional verticals for full three-way isometric paper. Cubes drawn on it actually close up instead of drifting.
Colour, weight and darkness
Seven presets plus a colour picker, with separate widths for fine and heavy lines. Pale grey hides under pencil, blue photocopies away, black scans hard and clean.
Vector PDF, PNG and multi-page
Export a razor-sharp vector PDF, a PNG for tablets and slides, or up to twenty identical pages in a single download when you need a whole pad of graph paper.
How to Use the Graph Paper Generator
Four steps from a blank page to grid paper you can measure with a ruler.
01
Choose your grid type
Square for general work, coordinate when you need axes, isometric for 3D sketching, dot when the grid should stay out of the way of your drawing.
- Coordinate grids can be one-quadrant or four-quadrant
- Isometric paper can include vertical lines or leave them out
02
Set spacing in millimetres or inches
Type the real physical size of a cell. 5 mm suits general maths, 10 mm suits plans and layouts, 1–2 mm suits technical drawing, and 1/4 inch matches North American classroom paper.
Changing the unit converts your value rather than discarding it.
03
Tune colour, weight and margins
Lighten the grid so your pencil work stands out, thicken the accent lines so blocks of cells stay countable, and widen the margin if the sheets are going into a ring binder.
For photocopying, sky blue lines drop out almost completely and leave only your own marks.
04
Download and print at 100%
Export the PDF and set your print dialog to Actual size or 100% scale, never Fit to page. Then check the result with a ruler across ten squares before printing the rest of the pad.
Read the printing guideGraph Paper Generator FAQ
Grid sizes, exact-scale printing, isometric paper and classroom use.
Is this graph paper generator free to use?
Yes, completely. There is no account, no email wall and no watermark, and you can generate and download as many sheets of graph paper as you like.
How do I make sure the squares print at the exact size?
Download the PDF rather than printing the web page, then set Scale to Actual size or 100% in the print dialog instead of Fit to page. Confirm the printer paper size matches your chosen sheet, print one page, and measure across ten squares: ten 5 mm cells should span 50 mm.
What grid spacing should I use?
5 mm is the general-purpose classroom standard and 1/4 inch is its North American equivalent. Use 1–2 mm for engineering and millimetre paper, 10 mm for plans, sewing layouts and garden design, and 20 mm or more for large diagrams and mind maps.
Can I generate A4 graph paper as well as US Letter?
Yes. A4, US Letter, A5 and US Legal are all available in portrait or landscape, and the grid is recalculated for each size rather than cropped from a single master sheet.
What is isometric graph paper for?
Isometric paper replaces squares with a triangular grid of 60° lines, so you can draw three-dimensional objects with all three axes at true scale. It is the standard sheet for product sketching, technical illustration, tabletop map making and pixel-free perspective drawing.
Can I add x and y axes with numbers?
Yes. Choose the coordinate grid, pick one or four quadrants, and switch on axis numbering. The tick labels follow the heavy-line interval, so a 5 mm grid with a heavier line every five cells is numbered every 25 mm.
Should I download the PDF or the PNG?
PDF for printing — it is vector, so lines stay sharp at any resolution and the page size is exact. PNG when you want to import the grid into a document, a presentation, or a tablet app such as GoodNotes, Notability or OneNote.
Why do my printed lines look thicker than on screen?
Very fine lines below about 0.4 pt fall under the smallest dot most home printers can place, so the driver rounds them up. If a dense millimetre grid prints too dark, raise the line width slightly and lower the line darkness instead.
Can I print a whole pad of graph paper in one go?
Yes. Raise the page count before downloading and the PDF will hold up to twenty identical sheets, which is far faster than opening the print dialog once per page.
Can I use the sheets with my students or at work?
Yes — print and photocopy them freely for classes, colleagues and your own projects. Reselling the generated PDFs or bundling them into commercial printable products is not permitted.
Something not working as expected?
Generate Your Free Graph Paper Now
Set the grid spacing in real millimetres or inches, choose your line colour, and download.
This graph paper generator runs entirely in your browser — no sign-up, no watermark.
Free • Vector PDF & PNG • A4, Letter, A5 & Legal