Size Chart Generator
A size chart answers the question every shopper asks before they buy: which size do I order? Start from a garment template, keep the measurements that matter for your product, and save a chart you can publish on your product page or send to a customer.
How to make a size chart
- Pick the garment. The table loads standard points of measure graded XS–XXL for that garment, with M as the base size.
- Keep only what you publish. Untick anything you do not want to show — shoppers do not need the neck rib height.
- Replace the numbers with yours. Measure your own fit sample flat and type the values in. This is the step that makes the chart yours.
- Choose the unit and save. Switch between inches and centimeters, then save a one-page PDF to publish or send.
Example: a t-shirt size chart
These are the four rows most t-shirt brands publish, with the generator's starting values. Open the tool above to edit them.
| Point of measure (inches) | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Body Length (HPS) | 27 | 28 | 29 | 30 | 31 | 32 |
| Chest Width | 19 | 20 | 21 | 22 | 23 | 24 |
| Shoulder Width | 16.5 | 17.25 | 18 | 18.75 | 19.5 | 20.25 |
| Sleeve Length | 8 | 8.25 | 8.5 | 8.75 | 9 | 9.25 |
Which measurements belong on a size chart?
- Tops (t-shirt, hoodie, sweatshirt, polo): body length, chest width, shoulder width and sleeve length cover almost every question a shopper has.
- Bottoms (joggers, shorts): waist (relaxed), hip, inseam and thigh width. Add the extended waist measurement if the waistband stretches a lot.
- Keep it to five rows. A chart with fifteen rows is a factory document, not a shopping aid. The full spec belongs in your tech pack.
- Say how to measure. One line such as "measured flat, closed, 1 inch below the armhole" prevents most returns.
Garment measurements or body measurements?
This generator starts from garment measurements: the flat-laid numbers you get by measuring a finished piece, which is what a factory works from and what most brands publish. Some shops publish body measurements instead, the chest and waist of the person rather than the shirt. Both are fine, but do not mix them in one table, and say which one you are using. If you only have body measurements so far, measure your best-fitting sample flat and use those numbers here.
Inches or centimeters?
Publish in the unit your customers think in: inches for US shoppers, centimeters for most of Europe and Asia. The numbers convert at 2.54 cm per inch, so a 21 in chest is 53.3 cm. Whichever you pick, keep the unit in the table header, as this tool does.
Before you publish
- Measure at least one sample in every size, not just the middle one; grading drifts from the plan more often than brands expect.
- Allow a tolerance of about half an inch either way, and mention it if customers ask.
- Recheck the chart after any fabric change: a heavier fleece changes the chest width of the same pattern.
- Put the same chart in your tech pack so the factory, your sample room and your storefront agree.
Checking the fabric before you measure? Use the GSM calculator to get the weight from a swatch, or the GSM to oz converter.
FAQ
What is a size chart?
A size chart is the table that maps each size a brand sells (XS to XXL) to measurements, so a shopper can pick a size without trying the garment on. It is usually published on the product page and repeated in the tech pack.
Should a size chart use body or garment measurements?
Either, as long as you say which. Garment measurements come from measuring a finished piece flat; body measurements describe the wearer. Garment measurements are easier to check and are what factories use.
How many sizes should the chart cover?
As many as you actually sell. This generator starts with XS to XXL; delete the rows and columns you do not need, or edit the values to match a shorter size run.
Can I put this chart on my Shopify store?
Yes. Save the PDF, or type the values from the table into your store theme. The chart is yours; nothing here is proprietary and no attribution is required.
Are these measurements a standard?
No. They are starting values for a unisex regular fit. Every brand grades differently, so replace them with your own sample measurements before you publish.
Need fabric or a sample made? Ask us for a quote.