The short answer: a cutter set is chosen by the range of sizes you need to cover, not by the number of pieces. The standard size for a single decorated cookie is 8 cm, the bite-size cookie is 6 cm and the gift cookie starts at 10 cm.
Choosing the wrong size ruins the job. A cutter that is too small makes precise decorating impossible, and one that is too large leaves the cookie out of proportion next to the cake. At KingsCutter the Cutter Set solves that decision from the first minute, because it generates several sizes of the same design in a single STL file.
What is the correct size for a cookie cutter?
The correct size is the one that matches how the cookie will be used. A cutter is measured by its widest span, meaning the distance between the 2 farthest points of the outline. That measurement sets how many cookies fit on a tray and how much dough each piece uses.
Graduated sets on the market start at 6 cm and step up by 1 cm to 10 cm. The sizing guide from the cutter shop Just Cutters publishes exactly that scale: 10 cm for the large cutter, 8 cm for the medium one and 5.5 cm for the small one.
The logic behind the scale is simple. According to our measurement in the workshop, the outline of a simple design reads the same across 3 consecutive sizes. It loses detail when the jump between pieces goes beyond 2 cm.
Which size should you use for each cookie type?
The table below lists the recommended size per use and the production volume of each piece. The 6 cm to 10 cm range matches both the market standard and the sizes generated by the KingsCutter designer.
| Use | Size | Pieces per tray | When it works best |
|---|---|---|---|
| Bite-size and candy bar | 6 cm | High | Dessert tables, samples and tastings |
| Standard single cookie | 8 cm | Medium | Selling by the dozen and boxed orders |
| Gift cookie | 10 cm | Low | Single bags and premium packaging |
| Centerpiece cookie | 13 cm and up | Very low | Statement piece next to the cake |
Every step up in size changes the surface of the cookie. As a result, it also changes the amount of icing, the drying time and the bag size you need to buy.
How many pieces should a set have?
A useful set has 3 pieces. With 3 consecutive sizes you cover the bite-size, the standard and the gift format, which are the 3 sizes that repeat most in a decorated cookie catalogue. A 2-piece set forces you to buy the third cutter separately. A 5-piece set only pays off if you sell large events or if you work with fondant and polymer clay in the same workshop.
The supporting data comes from the demand side. According to the Better Baker Club survey (2022), 37% of home-based food sellers name cookies, brownies and bars as their best-selling items.
The market backs that growth. According to Research and Markets, the global cookies market goes from USD 30.6 billion in 2025 to USD 40.6 billion in 2032, a 4.1% yearly growth. When cookies are the core product of a business, owning several sizes stops being a luxury.
How do you generate a cutter set at KingsCutter?
Short answer: upload an image, pick the Cutter Set, set how many pieces you want and download the STL. The AI traces the outline and lays the pieces out on the print bed, 1 cm apart from each other.
Step 1 — Upload the design
Upload a black and white image, a logo or a photo with a clean background. The system turns the image into a vector outline and drops the details that a 0.4 mm wide blade cannot reproduce. The full walk through is in how to turn a photo into a 3D cutter.
Step 2 — Set the piece count and the starting size
The designer allows 1 to 5 pieces and starts at 60 mm by default. Each following piece adds 10 mm, so a 3-piece set comes out at 60 mm, 70 mm and 80 mm. The 1 cm step is fixed, because it keeps the pieces printable side by side without overlapping.
Step 3 — Choose whether the set includes a stamp
The set can include one stamp per piece, and that option is on by default. Each stamp presses the same design in relief onto the cut cookie, so every size cuts and marks in one motion.
Step 4 — Download the STL
Download the file, open it in your slicer and pick the material. The first download is free, so you can test the size fit before choosing a plan. The whole process runs in the KingsCutter designer.
Why PETG and not PLA for a cutter set?
PETG is listed in title 21, section 177.1315 of the United States Code of Federal Regulations as a copolymer suitable for food contact. That is why the physical cutters in the store are printed in food-grade PETG rather than PLA.
PETG also handles repeated use and wash-day moisture better. The full comparison of temperature, stiffness and use cases is in PLA vs PETG for cookie cutters.
How should you care for a 3D printed set?
Wash the pieces by hand with warm water and mild detergent, then dry them before storing. Dishwasher heat warps the blade, which is the thinnest part of the piece.
- Store the pieces loose and without weight on top, so the blade does not flatten.
- Keep the 6 cm and 8 cm sizes for cookie dough, and use the 13 cm and up sizes for fondant, polymer clay, foam and salt dough.
- Dust flour or starch over the blade before cutting doughs with a high butter content.
- Print every piece with the same orientation so the surface finish matches.
If you sell, the KingsCutter library already holds hundreds of designs ready to personalise. You can also stock your catalogue with the physical cutters from the store, which come in 7, 8, 9, 10, 13, 15, 17 and 20 cm.
Cutter Set data and measurements
The values below come from the KingsCutter generator specs and from the market sizing guide. They are not estimates.
| Item | Value | Source |
|---|---|---|
| Graduated set scale | 6 cm to 10 cm, 1 cm steps | Just Cutters sizing guide |
| Medium reference size | 8 cm | Just Cutters sizing guide |
| Pieces per KingsCutter set | 1 to 5 | KingsCutter designer |
| Default starting size | 60 mm | KingsCutter designer |
| Step between pieces | 10 mm, fixed | KingsCutter designer |
| Set wall thickness | 0.8 mm | KingsCutter designer |
| Blade depth | 12.5 mm | KingsCutter designer |
| Physical store sizes | 7, 8, 9, 10, 13, 15, 17 and 20 cm | KingsCutter store |
Sources and standards
The technical data in this guide rests on verifiable sources:
- Cookie cutter — definition and measurements (Wikipedia)
- 21 CFR 177.1315 — PETG copolymers for food contact (eCFR)
- Cookie cutter sizing guide (Just Cutters)
- Home bakery statistics (Better Baker Club, 2022)
- Global cookies market (Research and Markets)
- NIST AM-Bench — additive manufacturing benchmarks (NIST)
- Food contact materials (FDA)
