US Letter vs A4 — Which calendar paper size?
US Letter and A4 are both widely used printer-paper formats, but they have different dimensions and proportions. Selecting the correct size before exporting helps the printable grid fit the sheet.
US Letter
US Letter measures 8.5 × 11 inches (215.9 × 279.4 mm). It is the default for many home and office printers in the United States.
A4
A4 measures 210 × 297 mm (approximately 8.27 × 11.69 inches). It is taller and slightly narrower than US Letter.
Landscape vs portrait
Monthly calendar grids often benefit from landscape orientation. A4 portrait may suit longer vertical planning pages; choose based on writing space and readability.
Which should I choose?
Use the size of the paper already loaded in your printer. The site generates separate PDF page dimensions for US Letter and A4, not merely a cropped version of the same page.