How to create a clothing size chart your customers can use
Create a clothing size chart step by step: choose measurements, label units, build a table, add fit notes, and publish a product-specific guide.
By Vestofy ·
To create a size chart, choose a product, collect its size labels and verified measurements, put them in a clearly labeled table, and explain how shoppers should compare those numbers. Then place the guide where customers choose a size.
A useful chart answers a specific question: “Which size of this item should I order?” A generic table can leave that question open when two products have different cuts or come from different suppliers. Start with one product you know well before building a guide for an entire collection.
1. Decide what the numbers describe
Decide whether your chart describes the customer’s body or the finished garment. Keep that decision visible in the table heading. “Chest, cm” leaves room for confusion; “Garment chest width, laid flat, cm” tells the reader much more.
- Body measurements: describe the body dimensions a size is intended to fit. Use the sizing specification supplied or approved by your brand.
- Garment measurements: describe the actual item. A shopper can compare them with a similar garment they already like.
A 50 cm flat chest width and a 100 cm chest circumference are different descriptions. Neither number, by itself, tells you the intended wearer’s body size. Do not silently double a width and present the result as a body measurement.
Record the measurement method alongside the values. If your supplier measures length from the shoulder, keep that reference point in your guide. Mixing methods across rows can make a correctly entered table misleading.
2. Build a table for one product
Use the size labels sold on the product page as rows. Use only relevant measurement points as columns, and identify the units. A T-shirt chart might use flat chest width and body length; a trouser chart needs a different set of fields.
| Size | Chest width, laid flat (cm) | Body length (cm) |
|---|---|---|
| S | 48 | 66 |
| M | 51 | 69 |
| L | 54 | 72 |
Replace every example value with your product’s verified data. Keep missing measurements visibly unfinished during editing, then resolve them before publishing. A zero or a guessed value can look like a real specification to a shopper.
When multiple products share a chart, confirm that the same labels, dimensions, and measurement methods apply to all of them. Similar-looking products do not necessarily have the same fit.
3. Explain how to use the chart
A size chart is the measurement table. A size guide adds the instructions needed to use it. Write a short note that names the reference points, explains whether the garment should be laid flat, and states whether the fabric is measured relaxed or stretched.
For a flat garment chart, a useful starting instruction is: “Compare these measurements with a similar garment that fits you well, using the same measurement points.” Adapt that instruction to your product and add a labeled image when words alone are unclear.
Keep fit notes separate from measurements. “Relaxed cut” is useful context, but it does not replace actual dimensions. Include supplier-approved tolerances when available, and do not promise that a chart guarantees a particular fit.
4. Create the size chart in Vestofy
- Open the Standalone Web App and create an account, or use guest exploration to look around first.
- Start a new chart, choose the garment type and a suitable template, and give it a product-specific name.
- Edit the size labels, measurement columns, units, and values. Treat a template as a structure to review against your product.
- Add measurement instructions and guide images, then preview the shopper-facing result.
If you use assisted image or camera measurement tools, review the resulting values before publishing. Check the first and last size as carefully as the middle rows. An extraction error in one column can affect every size.
For the free plan’s scope and account setup, read how to use the free size chart creator.
5. Publish and check the guide
Choose the publishing option that suits your selling channel. Vestofy supports public size guides, while its product integrations and publishing tools provide ways to place guidance on storefronts or share it through links and QR codes. Check the options available to your plan.
Shopify also recommends making sizing information available on product pages in its retail sizing guide. Use that placement advice to keep the chart close to the customer’s size choice.
- Open the guide as a shopper and confirm that it belongs to the selected product.
- Check the smallest screen you support: size labels, units, and instructions must remain readable.
- Compare the published values with your source measurements after editing.
- Review the chart again when a pattern, supplier, or product specification changes.
Need a platform-specific next step? See Shopify setup questions or standalone publishing questions.