Free tool · Grading
Enter your base size measurements, choose the size run and the grade per size, and get a graded size chart with tolerances in inches or centimetres. Copy it, download a CSV or print it.
Free tool · No sign-up · Nothing leaves your browser
Studio work: measuring across the shoulder; measuring the sleeve.
Generator
Start from a garment preset (example values) or type your own points of measure. Every field is editable; the chart below regrades as you type.
| Point of measure | Base (M) | Grade / size | Grade above XL | Tol ± | Remove |
|---|
T-shirt · cm2 · Graded size chart
Want us to do it properly?
A generated chart is a start. In a tech pack we grade from your fitted sample, write how to measure every point, set tolerances per point and draw each one on the flat.
Size grading, explained
Grading is how one fitted sample becomes a whole size run. The factory needs three things from you for every point of measure: the base value, the grade rule and the tolerance.
Base size
Measure your approved sample, not a body. Most brands fit womenswear on S and menswear and unisex on M, then grade up and down from there.
Grade rule
Girth points move most (a 1/2 chest often 2.5 cm per size), lengths less, and details such as a rib height often not at all. Many brands take bigger steps above XL.
Tolerance
A ± value per point that the factory’s QC checks against. Tight on small details, looser on long lengths and knit girths.
| Point of measure | XS | S | M | L | XL | 2XL | 3XL | Tol ± |
|---|---|---|---|---|---|---|---|---|
| 1/2 chest | 49 | 51.5 | 54 | 56.5 | 59 | 62 | 65 | 1 |
Not sure where each point starts and stops? See how to measure garments, or put the chart straight into a free tech pack template.
Questions
What the generator does, what grade rules are and what a factory needs from you.
Rather hand it over?
We draw the whole tech pack.
$299 per style, 3–5 working days, reply within 24 hours. Or email garmentspec@gmail.com.
Get a quote for your tech packGrading scales a base size pattern up and down to the other sizes in your run. Each point of measure changes by a set amount per size, called the grade rule, so a 1/2 chest might grow 2.5 cm (1 in) from one size to the next.
Use the size you fit your sample on, usually S for women’s and M for men’s and unisex. The generator grades up and down from it.
Many brands use bigger jumps for the larger sizes so the fit keeps up with the body. The generator has a separate column for the grade beyond XL; set it equal to the normal grade if you want even steps.
The tolerance is how far a finished measurement may be from the spec and still pass, for example ±1 cm on a chest. Factories check production against it, so every point of measure needs one.
It grades garment measurements, the finished measurements of the product, which is what a factory needs. A body size chart for your store can be built the same way from body measurements.
Yes. Copy puts the table on your clipboard with tabs between columns, so it pastes into cells. Download CSV gives you a file that opens in any spreadsheet.
When you would rather hand it over
Free tools cover the parts you can do yourself. For the rest, a technical designer on our team in the USA draws, measures and checks the full tech pack.
Free quote · Reply within 24 hours · Flat fee per style · Studio team in the USA
More free tools
All free, all in your browser. When you would rather hand the whole tech pack over, our studio team draws it.
Your brief
No perfect file needed. Tell us what you are making and we reply within 24 hours with the tier, the price and the timeline, before any work starts.
Free quote · Reply within 24h · Flat fee per style · No cut of your production · garmentspec@gmail.com
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