Each shopper's size from the brand's own chart, on your product page

One script tag on Shopify, WooCommerce or any other store. Covers 139 brands.

Start free

Shopping for shoes? Get my size

139
Brands with their own chart
1,474
Shoe model profiles
13
Size systems

Three ways to measure

Pick the one you have on hand. Each gives a length in millimetres; the size comes from the brand's chart.

Manual Entry

Stand on paper and mark the heel and the longest toe. Measure the distance in millimetres and enter it.

Fastest: about a minute

Photo Scan

Put your foot on A4 paper next to a coin and take a photo with any phone. The coin gives the scale, the photo gives the length.

No app needed: works in the browser

LiDAR Scan

iPhone 12 Pro or newer. The app measures depth from above and from the sides, and shows which side it still needs.

iOS app: TestFlight now, App Store later

How It Works

The same four steps for a shopper and for a shop

Measure your foot

LiDAR in the iOS app, a photo next to a coin, or a ruler on paper. Each path gives the length in millimetres.

Photo and ruler work in any browser. LiDAR needs the app.
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2

Look it up in the brand's chart

Your length and width are matched against the brand's own size chart: 139 brands, 13 size systems. Width is used where the brand publishes widths.

Where a brand has no chart, the size is computed by formula and marked as estimated.

See your size in every brand

Your size for Nike, Adidas, New Balance and 136 more brands, in US, EU, UK, JP and 9 more systems.

One number per brand, and the chart it came from.
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Buy with confidence

Add to cart knowing the size came from the brand's own chart, not a guess.

Shops see fewer size returns; you see fewer parcels going back.

One Measurement, Every Platform

Your size follows you everywhere

Demo Shop

Try the sizing flow on a sample product page and see where the widget sits.

Try it now →

Chrome Extension

Your size on any online store that sells the brands in our charts, straight from your Size Passport.

Open in the Chrome Web Store →

iOS App

LiDAR depth scan with a live outline of the measured region. Your sizes stay on your phone.

TestFlight now, App Store later

Widget SDK

For shops: one script tag on the product page. Your customers get their size from the brand's chart.

Integration guide →

What each side gets

Shoppers measure, shops integrate, both stop guessing.

For Customers

Free to use. No registration, no app download, works in any browser.
One scan, all brands. Measure once, get sizes for Nike, Adidas, New Balance and more.
Fewer wrong sizes. Less guessing, fewer returns, less shipping paid twice.
Size systems: US, EU, UK, JP, CN, KR, BR, RU and more.

For Shops

Fewer size-related returns. The right size the first time saves logistics and restocking.
More confident checkouts. A shopper who knows the size stops hesitating at the size picker.
One script tag. The widget appears on the product page. Done in minutes.
Analytics. See scans, clicks and chosen sizes in your dashboard.

Your FitScan Passport

Scan once. Use your size everywhere.

One Scan = Lifetime Sizes

Measure your foot once. Your size in all 139 brands, stored in your Size Passport.

Cross-Brand Conversion

Know your Nike size? A Nike 9 is a New Balance 9½, a Clarks 8½ and a Red Wing 10½, read from each brand's own chart. No measuring needed.

Works Everywhere

Website, Shopify store, Chrome extension, iOS app: your Passport follows you across every shop.

Get my size I know my size: convert it

Why Shops Choose FitScan

Fewer size returns. More confident checkouts. One script tag.

Fewer

Size-Related Returns

Customers buy the right size the first time. Fewer returns, lower logistics costs, better margins.

More

Confident Checkouts

When customers know their size, they buy. The question that stops a checkout is gone.

1 tag

To integrate

Add one script tag to your product page. The widget appears and sizes come from the brand's chart.

See plans and pricing

One script tag

Add it to the product page and name the container the widget mounts into.

<!-- Add to your product page -->
<script src="https://fitscan.io/sdk/fitscan.js"
        data-partner="YOUR_KEY"
        data-brand="Nike"
        data-container="#fitscan-widget"></script>

// The widget mounts into #fitscan-widget.
// The shopper enters a length; the size comes from the brand's chart.
Brands We Support
Nike Adidas New Balance Converse ASICS Puma Hoka Salomon Brooks Vans Reebok Saucony On Running Mizuno Under Armour Timberland Dr. Martens Clarks CAT Red Wing Merrell Columbia +117 more

Measure once. Buy the right size everywhere.

Free for shoppers. Shops start free, no credit card.

Get my size For shops