Quarter inch graph paper
Four squares to the inch, which is 6.35 mm — the American classroom default.
Quarter inch is the American classroom default, the ruling in the composition books and the loose-leaf pads sold as "graph paper" without further explanation in the US. Four squares to the inch, 6.35 mm a side, and — with the heavy line set to every fourth square, as it is here — one heavy block per inch.
The imperial arithmetic is what makes it worth having rather than substituting 5 mm. One square is a quarter inch, two are a half, and a block is an inch, so a measurement in inches and quarters reads straight off the sheet without conversion. That is exactly what quilting, woodworking layout and any US-dimensioned drawing wants.
Do not swap it for 5 mm paper on the grounds that they look alike. A quarter inch is 6.35 mm, twenty-seven percent more square area, and a pattern printed on the wrong one comes out the wrong size in a way you will not notice until it is cut.
The heavy line is set to every fourth square here rather than every fifth, which is the change that makes the sheet imperial rather than metric-with-inch-squares: one heavy block is one inch, so a dimension in inches and quarters reads straight off the page.
Graph paper by ruling and geometry
- Graph paper, any rulingThe full generator — any spacing, six geometries
- Isometric graph paperVertical and 30° lines · for 3D sketching
- Hexagonal graph paperWhole hexagons, any side length, flat or pointy top
- Polar graph paperRings and spokes · any radial step, any spoke angle
- Engineering paper5 squares per inch, green, with a border
- 5 mm graph paper5 mm squares · the metric standard
- 1 cm graph paper10 mm squares · big enough to write in
- Half inch graph paper12.7 mm squares · 2 squares per inch
Questions
What is 4 squares per inch?
It is quarter-inch paper described the other way round. Four squares to an inch means each square is a quarter of an inch, or 6.35 mm — the same sheet.
Can I use 5 mm paper instead of quarter inch?
Only for rough work. A quarter inch is 6.35 mm, so anything you scale off the sheet will come out 27 percent smaller in area than intended. For a quilt block or a cutting layout that matters a great deal.
How do I check the squares printed at exactly a quarter inch?
Measure across four squares — one heavy block — which has to be exactly one inch. Measure across sixteen for a four-inch check if your ruler is long enough; the longer the run, the smaller the scaling error you can catch.
Other tools
- Beading graph paperCharting paper drawn from the bead's own measurements, so the beads on the page are the size of the beads in the tube.
- Cross stitch pattern paperCharting paper at the size your stitches will actually be, for the count of fabric you actually have.
- English paper piecing templatesPick a shape, type the side length you actually want, and print it at true size.
- Bubble answer sheet generatorScantron-style answer sheets, built to your question count.
- Blank clock facesClock faces with hands drawn where they genuinely belong — at 3:45 the hour hand sits three quarters of the way to four, because that is what a clock does.
- Blank periodic tableEvery blank periodic table online is a fixed image.
- Attendance sheet and gradebook gridsPaste twenty-eight names, choose a month, print.
- Printable graph paperAny spacing you like, in millimetres or inches, printed at true size.
- Printable dot grid paperDot paper at the spacing you actually use — 5 mm for a bullet journal, or whatever you type.
- Printable lined paperCollege ruled, wide ruled, or handwriting paper with a dashed midline — at the real spacings, not an approximation.
- Year in pixelsOne cell a day for a whole year, drawn for the year you name — so February is the right length and the months stop where they actually stop.
- Savings and goal colouring chartsType your goal and how many cells you want.
