How big is the spacing on this page?
0.039 in (1 mm). 270 x 380 squares on A3 with 1/2 in (12.7 mm) margins.
1 mm Graph Paper on A3
Free printable 1 mm graph paper on a3 with 270 x 380 squares on A3. Change the color, line weight, spacing, paper size, and margins. Download a vector PDF that prints at actual size.
270 x 380 squares (102,600 total), 10.63 x 14.96 in grid
Paper sizes:
Grid Specifications
| Spacing | 0.039 in (1 mm) |
|---|---|
| Grid | 270 x 380 squares (102,600 total) |
| Grid area | 10.63 x 14.96 in (270 x 380 mm) |
| Heavier lines | every 10 squares |
| Margins | 1/2 in (12.7 mm) on all sides |
| Paper | A3, 297 x 420 mm, portrait |
| Standard | ISO 216 |
| Cell ratio | 1:1 (true square) |
| Ink | light gray, thin |
| Footer | label and 2 cm scale bar |
Good for
Millimeter squares with heavier lines every 5 mm and 10 mm, for precise plots and technical drawing.
- Math homework and graphing
- Floor plans and room layouts
- Pixel art and cross-stitch charts
- Garden planning
- Scale drawings and diagrams
Print at actual size
- Open the PDF in your browser or PDF reader.
- In the print dialog, set scale to 100% or Actual size.
- Do not use Fit to page. It shrinks the grid.
- Measure the scale bar in the footer (1 in or 2 cm) with a ruler to confirm the print size.
Frequently Asked Questions
Will it print at the right size?
It will if you print at 100% or Actual size. Fit to page shrinks it. The footer has a 2 cm scale bar you can check with a ruler.
Can I print it on A4 or other sizes?
Yes. Pick a size from the size links on this page or in the controls.
Can I change the color or line weight?
Yes. Use the color and line weight controls, then download.
Can I get more than one page in the PDF?
Yes. Set the page count up to 50 before you download.
Is it free?
Yes. Free to download and print, with no account.
What is engineering graph paper?
Five squares per inch with a heavier line every inch.