Enter your cup's three measurements and instantly get the precise printable rectangle — width, height, and wrap angle — calculated from real cone geometry.
Not estimates. Not rule-of-thumb. Exact mathematical calculations from your physical measurements.
Get the precise width and height your design canvas must be — calculated from the unrolled cone surface of your specific cup.
Know exactly how many degrees your design wraps around the cup. Most cups sit at 340–360°, giving a clean, minimal seam.
Switch units freely. Enter measurements in the system you work in — the calculator handles all conversions automatically.
No submit button. Results update as you type. Tweak dimensions and see the printable area recalculate in real time.
See a visual of your unrolled cup surface with the printable rectangle overlaid so you can understand the geometry at a glance.
Feed these exact dimensions into the 3D Cup Mockup tool to verify your correctly-sized artwork wraps perfectly in 3D.
The whole process takes under two minutes and saves you from expensive reprint cycles.
Use a digital caliper to measure top diameter, bottom diameter, and vertical cup height.
Choose mm, cm, or inches from the dropdown — whichever you measured in.
Type your three values. The calculator instantly returns your printable rectangle dimensions.
Create a new document in Illustrator or Photoshop at exactly these dimensions, 300 DPI.
Upload to the 3D Cup Mockup tool to verify the artwork wraps perfectly before printing.
Each result tells you something different about your cup's geometry and how to design for it.
Horizontal width of the printable area when the cup is unrolled flat. This is your design canvas width.
Vertical height of the printable area following the cup's angled surface. This is your design canvas height.
Degrees the design covers around the cup. Typically 340–360°. Tells you where the seam will land.
Live diagram of the unrolled cone surface with the printable rectangle overlaid for easy reference.
Small measurement errors create large artwork errors. These habits prevent the most common mistakes.
Rulers introduce human error. A £10 digital caliper gives ±0.1mm accuracy — more than enough for any cup project.
Always measure straight up from base to rim, not along the cup's slanted side. The slant height gives wrong results.
Never bleed key design elements to the edge. The seam area and manufacturing variance will swallow them.
Cup dimensions vary between manufacturers and batches. Always re-run the calculator when switching stock.
For high-value jobs, print at 1:1 and physically wrap it around the cup before going to final print.
The calculator returns precise decimals — use them. Rounding to whole numbers can cause visible seam misalignment.
Free. No account. Just three measurements and the exact canvas size you need.
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