A3 Graph Paper297 × 420 mm
Print A3 graphing paper at 297 × 420 mm. Choose 5mm, 1cm, 1/4 inch or a specialty grid below, then download a free A3 PDF for large diagrams, sketches and classroom work.
Choose a grid and download
All six PDFs use A3, portrait: 297 × 420 mm. Preview and download update together.
A3 graph paper size and orientation
A3 graphing paper is 297 × 420 mm in portrait or 420 × 297 mm in landscape. It has twice the area of A4. These printable A3 grid paper PDFs keep 5mm, 1cm and 1/4 inch spacing unchanged when you switch orientation.
A3 and 11×17 are different paper sizes. Select the sheet actually loaded in your printer; scaling one to fit the other changes the grid spacing.
Browse 11×17 / Tabloid graph paperPrint A3 graph paper at actual size
- Load A3 paper in a printer that supports this size.
- Choose the matching paper size and orientation in the print dialog.
- Select 100% or Actual Size. Avoid Fit to Page.
- Check ten 5mm squares with a ruler: they should measure 50mm.
Edge-to-edge grids may be clipped by your printer’s unprintable margins. Keep actual-size scaling to preserve the interior grid.
Full printing guideChoose a grid for your task
Use 5mm for metric drawings, 1/4 inch for four squares per inch, 1cm for larger diagrams, dots for flexible layouts, isometric for 3D sketches and hexagons for maps or chemistry. Common uses for this sheet include large metric diagrams, teaching materials, planning, design sketches.