Practical tools for measured work
Graph Paper Generator
Create calibrated square or dot-grid paper, draw on it locally, and export a single-sheet PDF or SVG image.
Calculate the layout, check the diagram, then print the result for the shop or jobsite.
Grid dimensions: 190.00 × 257.00 mm. Spacing: 5 mm.
Drawing stays in this browser and is included in PDF and SVG exports. Changing grid settings clears the drawing. At most 2,000 line segments are retained.
Keyboard drawing: enter a line in millimetres from the grid’s top-left corner, then choose Add line.
How it works
Choose paper size, orientation and grid spacing. Square grids include heavier major lines; dot grids use the line-width control as dot radius. Optional axes cross at the centre, with numbers in grid intervals and positive y upward.
Ten intervals of 5 mm equal 50 mm; quarter-inch spacing is exactly 6.35 mm. The PDF fits one selected sheet. SVG is a vector image with physical millimetre dimensions, suitable for a grid background or further editing.
Print calibration
Download the PDF and print at 100% or Actual size, with Fit to page disabled. Measure the 10 mm calibration square and several grid intervals before relying on the scale. Browser screenshots and resized images do not preserve print scale.
Limitations
Printer margins, paper distortion and print-dialog scaling can change physical spacing. A footer is reserved for calibration. Drawings are not saved between visits; export before leaving the page. The tool draws lines on a grid but does not solve or plot mathematical functions.
Related tools
Printable Ruler
Prepare a full-size metric, imperial or combination ruler and verify the printed calibration square before use.
Printable Protractor
Prepare a full-size 180° protractor and verify its printed calibration mark before use.
Calibrated screen ruler
Measure screen-plane lengths after physical calibration, with millimetre or sixteenth-inch ticks and zoom/resize invalidation.
How to read a ruler
Select ruler ticks and see reduced inch fractions, decimal inches and millimetres in an interactive reading guide.