Imperial grid guide
1/4 Inch Graph Paper Explained: When to Print Quarter-Inch Grid
Quarter-inch graph paper is the familiar US classroom grid: four squares per inch. It is the right choice when your printer paper, ruler, worksheet, or project is based on inches instead of metric measurements.
One square
1/4 inch
Four squares
1 inch
Metric size
6.35mm
Common name
4x4 grid
What does 1/4 inch graph paper mean?
Each square is one quarter of an inch wide and one quarter of an inch tall. Four squares make one inch. This is why quarter-inch graph paper is often described as four squares per inch, 4x4 graph paper, or quad paper.
When quarter-inch grid is the right choice
Use 1/4 inch graph paper when the rest of your work uses inches. That includes many US classrooms, Letter-size worksheets, simple floor plans, craft measurements, and drafting practice with inch rulers.
- US math worksheets printed on Letter paper.
- Room sketches measured in feet and inches.
- Craft patterns that use inch-based dimensions.
- Drafting practice where four squares per inch is expected.
- General notes when 5mm feels a little too small.
When 5mm paper is better
If the assignment uses centimeters or millimeters, print 5mm or 1cm graph paper instead. Quarter-inch paper is close to 6.35mm, so it does not line up cleanly with a metric ruler.
How to check the printout
Print one test page and measure four grid spaces. They should equal exactly one inch. If they measure less than one inch, the page was probably scaled down. Reprint with Actual Size or 100% scale.
Print quarter-inch graph paper
Start with Letter size if you are using US printer paper. Use the custom generator if you need a different paper size, line color, or margin.