Tumbler wrap sizes, and how to measure your own blank
Short answer: it depends on the blank, and the number on the label will not tell you. The table below gives the sizes for the most common blanks. After it come the three measurements that decide any wrap size, how to take them, and the arithmetic that turns them into a template.
The most common tumbler wrap sizes
Flat wrap size for the blanks people ask about most, as the generator exports it. Pixels are at 300 DPI. Each name opens that blank's template page.
| Blank | Inches | cm | Pixels at 300 DPI |
|---|---|---|---|
| 20 oz Skinny Straight Tumbler | 9.28″ × 8.2″ | 23.6 × 20.8 cm | 2785 × 2460 px |
| 20 oz Skinny Tapered Tumbler | 9.48″ × 8.1″ | 24.1 × 20.6 cm | 2845 × 2431 px |
| 30 oz Skinny Straight Tumbler | 9.9″ × 9.13″ | 25.1 × 23.2 cm | 2970 × 2739 px |
| 30 oz Tapered Tumbler (Yeti-style) | 12.43″ × 8.21″ | 31.6 × 20.8 cm | 3729 × 2463 px |
| 40 oz Quencher-style with Handle | 12.29″ × 8.89″ | 31.2 × 22.6 cm | 3688 × 2668 px |
| 16 oz Glass Can (Libbey-style) | 9.8″ × 4.2″ | 24.9 × 10.7 cm | 2940 × 1260 px |
| 12 oz Kids Tumbler (straight) | 9″ × 4.5″ | 22.9 × 11.4 cm | 2700 × 1350 px |
| 11 oz Sublimation Mug | 8.5″ × 3.5″ | 21.6 × 8.9 cm | 2550 × 1050 px |
All 32 blanks, each with its size source, are in the tumbler wrap size chart. If yours is not there, the rest of this page shows how to measure it.
A wrap is three numbers
Every wrap template comes from the same three measurements:
- Top diameter — straight across the blank at the top of the area you want to print.
- Bottom diameter — straight across at the bottom of that area.
- Printable height — the vertical distance between those two points.
Note what is not on that list: ounces. Capacity tells you how much liquid fits, not how the steel is shaped, which is why two 30 oz tumblers from different brands can need templates half an inch apart.
How to measure
1. The diameters
Open a digital caliper’s outside jaws and close them across the blank — not around it. Take the reading at the top of your print area, then again at the bottom. Measure the body, not the lid lip or a rubber base ring; those are usually wider than the printable wall and will inflate your template.
No calipers? Wrap a flexible sewing tape around the blank instead and read the circumference directly. That skips the arithmetic below entirely, because circumference is the width of a straight wrap.
2. The printable height
Sublimation paper cannot follow a compound curve. Find where the wall stops being straight at the top and where it starts curving in at the bottom, and measure between those two points. On most steel tumblers you lose a few millimetres at each end; on glass cans and water bottles you can lose an inch or more to the shoulder.
3. Check for taper
Compare your two diameters. If they differ by more than about 0.02″, the blank is tapered and its wrap is a curved band, not a rectangle. This is the measurement people most often skip, and it is the one that decides whether the seam closes.
Turning the numbers into a wrap
For a straight blank the arithmetic is one line:
wrap width = π × diameter + seam overlap
Worked through with the 20 oz Skinny Straight Tumbler, which measures 2.875″ across with 8.2″ of printable height:
| Circumference | π × 2.875″ = 9.03″ |
| + seam overlap | + 0.25″ |
| Wrap width | 9.28″ |
| Wrap height | 8.2″ (the printable height) |
| File size at 300 DPI | 2785 × 2460 px |
For a tapered blank there is no one-line version. The surface is a slice of a cone, and flattening a cone gives you an arc whose radii depend on both diameters and the height. The 20 oz Skinny Tapered Tumbler (2.94″ top, 2.71″ base, 8″ tall) unwraps to a curved band 9.48″ × 8.1″ across its bounding box. That is what the generator is for — it does the cone maths from your three numbers.
Sanity check before you print. Cut a plain strip of paper to your calculated width, wrap it around the blank, and see whether the ends meet with your overlap and nothing more. One sheet of copy paper is cheaper than one sheet of sublimation paper plus the blank.
Enter your measurements
Open the generator, switch to Custom size, and type your top diameter, bottom diameter and printable height. It detects taper automatically, adds your seam overlap, draws the safe zone, and exports a true 300 DPI PNG or a real-size SVG.
Open the custom-size tumbler wrap generator →
If your blank is a common one, it may already be measured: check the tumbler wrap size chart first, where the three most common blanks export free. Custom measurements are the part of the generator that needs Pro ($19 once), because typing in your own numbers is exactly the job a published template cannot do for you.
FAQ
What size is a tumbler wrap, in general?
There is no single answer, because a wrap is sized by the blank, not by its capacity. As a reference point, the most common 20 oz straight skinny (2.875″ across, 8.2″ of printable height) needs a 9.28″ × 8.2″ wrap. The size chart lists 32 blanks with their exact sizes.
What is a tumbler wrap size in cm?
Multiply the inch measurements by 2.54. The common 20 oz straight skinny works out to 23.6 × 20.8 cm (9.28″ × 8.2″); a 16 oz glass can (libbey-style) is 24.9 × 10.7 cm. Every blank in the size chart lists both, and the generator shows inches and centimetres side by side as you change the measurements.
Do I need calipers, or is a tape measure enough?
A flexible tape around the blank is enough for a straight tumbler — measure the circumference directly and skip the π step. Calipers become worth it on tapered blanks, where you need two diameters that differ by a couple of tenths of an inch, and a tape read at a slight angle will not resolve that reliably.
How much seam overlap should I add?
0.25″ is the common default and is what this generator adds by default to measured blanks. It gives the paper somewhere to meet without a visible white line. Published manufacturer template sizes usually have their overlap already built in, so don’t add a second one on top.
Where exactly does the printable height start and stop?
At the point where the blank stops being straight. On a steel tumbler that is usually just below the top rim and just above the base radius. On a glass can it is the straight body only — the 16 oz Glass Can (Libbey-style) is taller than that overall, but only 4.2″ of it will take a flat wrap without creasing at the shoulder.