Generator · Print-true
Printable dot grid paper, exact to the millimeter
Set the spacing, print, and measure it — the dots land exactly where the readout says. Generated in your browser as vector geometry, sized in real millimeters, with no watermarks, no sign-ups, and nothing uploaded. Print it on paper or save it as a PDF from the same dialog.
How this generator works
The sheet you see is an SVG drawn in physical units: every dot center is a real millimeter coordinate, not a screen pixel. The page computes how many whole cells fit inside the printable area — the sheet minus your margin — then places a dot at every intersection of that lattice and centers the whole pattern, so the spacing never breaks into partial cells at the edges. The readout shows the resulting geometry: sheet size, true spacing in both units, the exact cell count, and the dot size.
Printing is where most dot-grid sites quietly fail, because "Fit to page" rescales their fixed PDFs and 5 mm dots arrive 4.7 mm apart. This page sets the print size to match your chosen sheet exactly and keeps the lattice inside a 12.7 mm default margin — within the mechanical dead zone of essentially every consumer printer — so nothing needs rescaling. Leave the dialog at 100% or "Actual size" and the millimeters on paper match the millimeters on the readout; the methodology page shows how to verify with a ruler.
The honest limits: if your print dialog is set to fit, shrink, or scale, no generator can save the spacing — check that setting once and it stays checked. Dots below about 0.3 mm can print faintly or unevenly on consumer printers, which is why the default here is 0.4 mm rather than the smallest the control allows. And borderless edge-to-edge dot grids depend on printer hardware this page can't control, so the margin control stops at 5 mm instead of pretending zero works everywhere.