Free Shopify Size Chart Builder for POD

SHOPIFY
SIZE CHARTS _

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Pick the print-on-demand (POD) blank you sell, copy the code, and paste it into your Shopify product template. Your size chart opens in inches or centimeters based on each shopper's country, with a one-tap switch.

Country-aware units. Manufacturer data. No app.

Choose your blank

Measurements come from each manufacturer's published specifications.

Blank Popular Bella+Canvas 3001 Popular Gildan 64000 Gildan 5000 Comfort Colors 1717 Next Level 3600

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Unisex T-Shirt

Colors and fonts follow your theme.

Paste into a Custom Liquid block

In the Shopify theme editor, open your product template, add a Custom Liquid block next to the size picker, and paste this code.

INSTALL IN 3 STEPS

Add a size guide to your Shopify store in three quick steps.

COPY

Pick your blank and copy the code.

ADD

Add a Custom Liquid block.

PASTE

Paste the code and save.

REFERENCE SIZE CHARTS

Garment measurements for each blank, as published by the manufacturer. Inches are the published values; centimeters are converted and rounded to 0.1 cm. Print providers can vary slightly, so confirm with yours.

Bella+Canvas 3001 garment measurements in inches and centimeters
Size	Chest width (in)	Chest width (cm)	Body length (in)	Body length (cm)
XS	16½	41.9	27	68.6
S	18	45.7	28	71.1
M	20	50.8	29	73.7
L	22	55.9	30	76.2
XL	24	61.0	31	78.7
2XL	26	66.0	32	81.3
3XL	28	71.1	33	83.8
4XL	30	76.2	34	86.4
5XL	32	81.3	35	88.9

Fit: Classic fit. Fabric: 4.2 oz, 100% Airlume combed and ring-spun cotton. Ash: 99% cotton, 1% polyester.

Source: Measurement specification report (PDF), Product page, retrieved 2026-09-25. Inches are published values; centimeters are converted and rounded to 0.1 cm.

Gildan 64000 garment measurements in inches and centimeters
Size	Chest width (in)	Chest width (cm)	Body length (in)	Body length (cm)	Sleeve length (in)	Sleeve length (cm)
XS	16	40.6	27	68.6	15½	39.4
S	18	45.7	28	71.1	16⅝	42.2
M	20	50.8	29	73.7	17¾	45.1
L	22	55.9	30	76.2	19	48.3
XL	24	61.0	31	78.7	20¼	51.4
2XL	26	66.0	32	81.3	21½	54.6
3XL	28	71.1	33	83.8	22⅝	57.5
4XL	30	76.2	34	86.4	23¾	60.3
5XL	32	81.3	35	88.9	25	63.5

Fit: Modern classic fit. Fabric: 4.5 oz/yd², 100% ring spun cotton. Fiber content varies by color. Check the manufacturer's color list.

Source: Product page, Sizing tab, retrieved 2026-09-25. Inches are published values; centimeters are converted and rounded to 0.1 cm.

Gildan 5000 garment measurements in inches and centimeters
Size	Chest width (in)	Chest width (cm)	Body length (in)	Body length (cm)	Sleeve length (in)	Sleeve length (cm)
S	18	45.7	28	71.1	15⅛	38.4
M	20	50.8	29	73.7	16½	41.9
L	22	55.9	30	76.2	18	45.7
XL	24	61.0	31	78.7	19½	49.5
2XL	26	66.0	32	81.3	21	53.3
3XL	28	71.1	33	83.8	22⅜	56.8
4XL	30	76.2	34	86.4	23⅝	60.1
5XL	32	81.3	35	88.9	25	63.5

Fit: Classic fit. Fabric: 5.3 oz/yd², 100% US cotton. Fiber content varies by color. Check the manufacturer's color list.

Source: Product page, Sizing tab, retrieved 2026-09-25. Inches are published values; centimeters are converted and rounded to 0.1 cm.

Comfort Colors 1717 garment measurements in inches and centimeters
Size	Chest width (in)	Chest width (cm)	Body length (in)	Body length (cm)	Sleeve length (in)	Sleeve length (cm)
S	18¼	46.4	26⅝	67.6	16¼	41.3
M	20¼	51.4	28	71.1	17¾	45.1
L	22	55.9	29⅜	74.6	19	48.3
XL	24	61.0	30¾	78.1	20½	52.1
2XL	26	66.0	31⅝	80.3	21¾	55.2
3XL	27¾	70.5	32½	82.5	23¼	59.1
4XL	29¾	75.6	33½	85.1	24⅝	62.5

Fit: Relaxed fit, garment dyed. Fabric: 6.1 oz/yd², 100% ring spun US cotton.

Source: Product page, Sizing tab, retrieved 2026-09-25. Inches are published values; centimeters are converted and rounded to 0.1 cm.

Next Level 3600 garment measurements in inches and centimeters
Size	Chest width (in)	Chest width (cm)	Body length (in)	Body length (cm)
XS	17½	44.5	27	68.6
S	19	48.3	28	71.1
M	20½	52.1	29	73.7
L	22	55.9	30	76.2
XL	24	61.0	31	78.7
2XL	26	66.0	32	81.3
3XL	28	71.1	33	83.8
4XL	30	76.2	34	86.4
5XL	32	81.3	35	88.9
6XL	34	86.4	36	91.4

Fit: Regular fit. Fabric: 4.3 oz (145 GSM), 100% combed ring-spun cotton. Heather Gray: 90% cotton, 10% polyester. Oatmeal: 99% cotton, 1% polyester. 4XL–6XL in select colors.

Source: Measurement specification (PDF), Sell sheet (PDF), retrieved 2026-09-25. Inches are published values; centimeters are converted and rounded to 0.1 cm.

FAQ

Quick answers about installing and using the size chart builder on Shopify.

hello@checkoutworks.dev

No. The builder runs in your browser and gives you a block of Liquid code to paste into your theme.

The size guide is plain HTML, CSS, and a few lines of JavaScript, with no app, account, or external requests.

No. The code uses Shopify's Liquid and a Custom Liquid block, so it works only on Shopify stores with an Online Store 2.0 theme.

It won't work on Etsy, WooCommerce, or a print provider's own storefront. The reference charts on this page apply to any store.

Shoppers in the United States, Canada, the United Kingdom, Ireland, Australia, and New Zealand see inches first; everyone else sees centimeters. Shoppers can switch units at any time.

Yes, if each blank uses its own product template: paste the matching code into each template. If you want one template to pick the right chart for each product automatically, for example from product metafields, we can set that up for you.

Once the size guide is installed, remove the table from the product description so shoppers see one chart, in one place.

Tell us which blank you use through our contact page. For a blank we don’t list yet, or for charts loaded from product metafields, we can build it for you.