Tapered Tumbler Template & Design WarpNew

How to make a template for a tapered tumbler

A straight “skinny” tumbler takes a plain rectangle, which the mug & tumbler template generator makes for you. A tapered tumbler is wider at the top than at the bottom — it is a slice of a cone — and a cone can’t be covered by a rectangle without wrinkles. Unrolled, a cone becomes a ring segment, which is why every tapered template looks like a rainbow. The curve depends only on how much the tumbler narrows compared to its height, so two tumblers with the same numbers share the same template and the three measurements are all you need.

The maths (it’s short)

Call the wide circumference C1, the narrow one C2 and the height measured along the side s. Extend the tumbler’s side down to the cone’s tip: the outer curve sits on a circle of radius R around that tip and the inner curve on a circle of radius r.

Check: the outer curve is R × angle = C1 and the inner curve is r × angle = C2 — exactly the two circumferences. If you measured straight up with a ruler (height h) instead of along the side, the side is slightly longer: s = √(h² + (d1 − d2)² ÷ 4), where d1 and d2 are the diameters. The tool does that for you.

Worked example (the default values): C1 = 11.5 in, C2 = 8.75 in, s = 7 in → R = 7 × 11.5 ÷ 2.75 = 29.27 in, r = 22.27 in, angle = 11.5 ÷ 29.27 = 0.3929 rad = 22.51°. The template is 11.43 × 7.43 in without bleed; with 1/8 in bleed and a small margin the sheet is 12.1 × 8.0 in (3630 × 2400 px at 300 DPI).

How to measure a tapered tumbler

1. Mark the print area. Start just under the rim or the lid line and stop just above the curve of the base — sublimation doesn’t wrap well over curves.
2. Top circumference: wrap a flexible tape round the tumbler at the top of that area. Read it where the tape meets, without pulling it tight.
3. Bottom circumference: the same at the bottom of the area.
4. Height: along the side between the two lines, with the tape lying flat on the tumbler (choose “Along the side”). With a ruler held upright, choose “Straight up”.
5. Measure twice. A 1/16 in error in a circumference noticeably changes the curve.

No tape? Measure the diameters with a ruler or calipers and switch to Diameter; the tool multiplies by π. We don’t ship preset sizes because tapered blanks of the same capacity differ between brands — and product pages list the whole cup, not the printable area.

Warping a straight design into the arc

Drop a rectangular design — the same kind you would print for a straight tumbler — and the tool bends it into the template pixel by pixel. For every pixel of the output it works out where it falls on the tumbler (how far round, how far down) and reads the design there with bilinear sampling, so edges stay smooth with no stair-steps or stretched streaks. The design runs across the seam: the bleed at one end continues with the other end of the design, so there is no hard line where the ends meet.

• Standard keeps every row the same height. The design becomes a little narrower towards the narrow end — the usual result of a warp in Photoshop or Canva.
• Keep shapes scales the design evenly in both directions, so circles, faces and letters stay round; they just get slightly smaller towards the narrow end.
• Fill crops the design to the wrap’s proportions, Fit keeps all of it with background around, Stretch forces it to the full wrap.

The ideal design size is shown under the preview (the circumference halfway up × the height). At 300 DPI a design that size prints sharp.

Common mistakes

• Measuring the whole cup. The lid, rim and base curve aren’t printed. Measure only the straight part of the side.
• Printing at “Fit to page”. The template shrinks. Always print at 100% / Actual size and check the 1 in square.
• Forgetting to mirror sublimation paper you print yourself — the paper faces the tumbler.
• No bleed. Add 1/8 in so the ends overlap at the seam and no bare line shows.
• A low-resolution design. Under about 200 DPI on the tumbler it looks soft; run it through the AI Image Upscaler first.

FAQ

Why does a tapered tumbler need a curved template?

A tapered tumbler is part of a cone. When you unroll a cone flat you get a ring segment (an arc), not a rectangle: the wide end is the longer outer curve and the narrow end the shorter inner curve. A rectangle wrapped around a taper wrinkles and leaves a spiral gap at the seam.

How do you calculate a tapered tumbler template?

With the wide circumference C1, the narrow circumference C2 and the height along the side s: outer radius R = s × C1 ÷ (C1 − C2), inner radius r = R − s, and the arc angle = C1 ÷ R in radians (× 57.2958 for degrees). The outer curve is then exactly C1 long and the inner curve exactly C2.

What do I measure on a tapered tumbler?

Measure the area you will print, not the whole tumbler: the circumference just under the rim or lid line, the circumference just above the base curve, and the height between them along the side with a flexible tape. Measure twice; a 1/16 in error in circumference changes the arc noticeably.

Do I mirror a tapered tumbler design for sublimation?

Yes, if you print on sublimation paper yourself, because the paper faces the tumbler. Tick Mirror before downloading. Don’t mirror files you send to a print-on-demand provider.

Why does my design look squashed at the narrow end?

The narrow end has less room, so something has to give. The Standard warp keeps every row the same height and makes the design narrower towards the narrow end; Keep shapes shrinks the design evenly in both directions so circles and letters stay round. Pick whichever looks better for your artwork.

Can I print the template on Letter or A4 paper?

Yes. The PDF download is exactly to size; when the arc is bigger than the page it is split into overlapping pages with alignment marks. Print at 100% or Actual size and check the 1 inch square before cutting.

Is this tumbler template generator free?

Yes. The template, the warp and all downloads are made in your browser with no sign-up, no watermark and nothing uploaded.

Sources

Checked on 29 September 2026. The formulas are standard cone geometry (the development of a frustum).

• Jennifer Maker, How to sublimate tapered tumblers — measuring top and bottom circumference and height; the 19 oz tapered blank used for the example values (11.5 in, 8.75 in, 7 in).
• MakerFlo, 22 oz tapered tumbler — lists only the height (7.31 in) and the bottom diameter (2.65 in): not enough for a template, which is why this tool asks for your own measurements.

More for drinkware sellers: the mug mockup guide.