One-inch hex paper
Hexes one inch across the flats — the standard battle-map scale, sized to hold a 25 mm miniature base.
Opens with these settings already loaded. Change anything you like, then download as PDF, PNG or SVG.
One inch is the miniature standard
Tabletop RPGs and most skirmish wargames use a one-inch cell representing five feet of game space, and standard miniature bases are 25 mm — just under an inch. A one-inch hex holds a base with a little room to see the grid underneath. Because this PDF prints at true size, figures will actually fit; a scaled print is off by a few millimetres and the miniatures crowd.
Hexes versus squares for combat
A square grid makes diagonal movement ambiguous, which every system patches with a rule — alternate 5/10 feet, or count diagonals as 1.5. Hexes remove the problem: all six neighbours are equidistant, so movement and range are simply counted. The cost is that hexes are worse for drawing rectangular architecture, which is why dungeon maps often stay square while overland maps go hex.
Print several and tape them
A single Letter sheet gives roughly 8 by 10 hexes, which is a small encounter. For a larger battlefield, print four sheets and butt them together — with the margin set to zero the hexes line up across the seam. Tabloid at the same hex size doubles the area on one sheet if your printer takes it.
Printing it accurately
This only measures correctly if your printer doesn't rescale the page. In the print dialog set Scale: 100% — not "Fit to page" or "Shrink oversized pages". If you're not sure it worked, print the calibration page, measure the ruler on it with a real ruler, and it will tell you exactly what your printer is doing to the page.