EStore Tools

Size & Fit Guide Generator

Turn your size chart numbers into a measuring guide and fit notes for the product page, in clean HTML.

Describe the result you need. AI will set up the tool and ask for any missing details.

Configure with AI

Enter to submit · Shift + Enter for a new line

Sent to AI. Leave out passwords and private customer data.

Your brief

These form details are sent to our AI provider when you generate. Review the result before publishing.

What it builds from your numbers

Paste in the fit description and the measurements for each size, pick the product type and whether the numbers are body or garment measurements, and the tool writes four sections: how it fits, a size chart table built from your exact numbers, how to measure (matched to the product type you picked), and finding your size.

Relaxed T-shirt, garment measurements

Product type
Tops
Sizes given
S: chest 104 cm, length 69 cm · M: chest 110 cm, length 71 cm
Measurements are
Garment measurements

A table with columns Size, Chest, Length and two how-to-measure entries: Chest (armpit to armpit, doubled) and Length (shoulder to hem).

It never converts a unit, rounds a number or invents a size you didn't give. If a size is missing from your notes, it's missing from the table too.

Adding it to a product page

  1. 01

    Copy the HTML

    Use Copy HTML under the result.

  2. 02

    Shopify

    Add it as its own section, or paste it into the product description using Show HTML in the description editor.

  3. 03

    WooCommerce

    Add it to the Additional information tab, or paste it into the description with the editor's Text tab active.

Building the chart itself first? The size chart generator makes a responsive table and image export from the same numbers.

Questions people ask

Do I need a full size chart to use this?

No. Without one, it still writes how-to-measure and fit sections; it just leaves out the size chart table and tells you to add your measurements later.

Will it tell shoppers to size up or down?

Only if you choose that under Sizing advice. "Not stated" leaves sizing guidance out entirely rather than guessing.

Does it work for rings, hats and pet apparel?

Yes. Pick the product type and the how-to-measure section changes: circumference for rings, head measurement for hats, neck and chest for pet apparel.

What's the difference between body and garment measurements?

Body measurements are taken on a person; garment measurements are taken on the item laid flat. Pick whichever your numbers actually are, since the how-to-measure instructions differ for each.

Is it free?

Yes, with a fair-use limit so it stays free for everyone. There's no sign-up. Your sizing details is sent to an AI model only to write the result.

Related tools

Size Chart GeneratorBuild a responsive size chart table from your own measurements and paste the HTML straight onto a product page.Ring Size ConverterConvert ring sizes between US, UK, EU and Australia using inner diameter and circumference, not a static chart image.Clothing Product Description GeneratorWrite clothing descriptions that answer the questions shoppers can't try on: fit, fabric, model size and care.Care Instructions GeneratorTurn a care label into plain-language washing instructions and a symbols guide for the product page, in the units you sell.

Want this builtinto your store?

I'm Emmanuel, a Shopify and WooCommerce developer. If this tool pointed at something you'd rather have fixed for you (a faster store, cleaner product data, a migration, a custom feature), send me a note.

Emmanuel Asika

Emmanuel Asika

Shopify & WooCommerce developer, Dublin

I build and fix online stores: new builds, migrations, speed, SEO and the custom bits apps can't do.

hello@emmanuelasika.com
See my work

Last reviewed 30 September 2026.