Printable Geometry Cheat Sheet
Free printable geometry cheat sheet at exact scale — area and perimeter formulas, circle formulas, 3D surface area and volume, and coordinate geometry on one page.
A geometry cheat sheet keeps every area, perimeter and volume formula in one place — triangles (including Heron's formula), quadrilaterals, circles (circumference, area, arc and sector), polygon angle sums, and the surface area and volume of cubes, prisms, cylinders, cones, spheres and pyramids — plus coordinate-geometry formulas for distance, midpoint, slope and lines.
It prints at exact scale in real millimetres on A4, Letter or any size, laid out in clean columns you can pack tighter or enlarge to taste.
Printing at exact scale
Every sheet is drawn in real millimetres and prints at exact physical scale. For accurate output, set Scale = 100% (Actual size) and Margins = None in your browser's print dialog. Not sure your printer is honest? Run the printer ruler test first to confirm 50 mm really measures 50 mm.
Frequently asked questions
What shapes are covered?
Triangles, quadrilaterals, circles, regular polygons and the main 3D solids (cube, prism, cylinder, cone, sphere, pyramid).
Does it include coordinate geometry?
Yes — distance and midpoint formulas, slope, the equation of a line and basic transformations are included.
Is it really free?
Yes. Every template on printsheet.io is completely free, with no sign-up, no account and no watermark. Generate as many sheets as you like.
How do I get an exact-scale print?
Choose your paper size, then in the print dialog set Scale to 100% or “Actual size” and Margins to None. The sheet is defined in real millimetres, so it prints at true size. Use the calibration ruler page to verify.
Which paper sizes are supported?
A4, A5, A3, A6, US Letter, Legal and Tabloid, in portrait or landscape. Pick the size that matches the paper loaded in your printer.
Can I save it as a PDF instead of printing?
Yes — choose “Save as PDF” as the printer in your browser's print dialog. The PDF keeps the exact millimetre dimensions.