Kiwi Sizing for any platform

Help your customers shop the right size with
powerful fit recommender and professional size charts.

improve conversion and lowering returns.

See demos

Why Kiwi Sizing?

20% to 40% of online returns are due to fitting issues. Kiwi Sizing is here to solve that problem.

Reduce customer returns

Helping customers purchase the right size upfront is a great way to reduce the possibility of returns. Kiwi Sizing uses effective size charts and Fit Recommender to help reduce returns and make your customers happy!

Lower customer support needs

Informative size charts and recommenders help customers to figure out the right size without asking for support.

Improve conversion rate

With the help of Fit Recommender, less customer support resources will be needed to guide customers with sizing related inquiries.

Works for any type of shops

Whether you are selling t-shirts or shoes, you can create custom-made size charts for your product and display the right one on the right product pages. Our customizability is endless with over 10 different layout blocks.


Size charts created


Active shops worldwide


to create a size chart (avg. time)

How does it work?

We help by providing accurate sizing information for your customers

Size Charts

From layout, images, to content and color, create visually consistent and easy to read size charts for your products.

Machine learning based apparel sizing recommendation, with simple measurement input from customers.

Size recommender can also be used for any product: from footwear, pet products, to snowboards.

Learn more about how these features work

How to make a size chart?

Make a size chart in 4 simple ways. Create awesome size charts for your store.

Step 1

Sign up Kiwi Sizing

Step 2

Set up integration
(see guide)

Step 3

Choose a size chart template and edit the details

Step 4

Set up product matching conditions and publish

How to integrate with any platform?


Simple & transparent pricing - affordable to businesses of all sizes

14-days trial for any paid plans


Free forever
  • Up to 2 Fully Customizable Size Charts
  • Automatic Unit Converter
  • Dynamic Size Charts
Get Started


Per Month
  • All the benefits of Free, and:
  • Unlimited Size Charts
  • Automatic Unit Detection by Location
  • Basic Analytics
Start Free Trial
No credit card needed.


Per Month
  • All the benefits of Premium, and:
  • Advanced Apparel Recommender
  • Custom Recommender
  • Advanced Analytics
Start Free Trial
No credit card needed.
Learn more about pricing details

Trusted by 12,000+ Businesses Worldwide

From swimwear to pet apparel to footwear, see what our customers say about Kiwi Sizing

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Elevate your online shop with Kiwi Sizing.

Try for free today.

No credit card needed.

Support all e-commerce platforms: Shopify, BigCommerce, WooCommerce, Magento, Volusion, 3dcart and many more!

Related Resources

Kiwi Sizing FAQs

Product sizing is often an overlooked part of an online clothing business. Shopping online has more friction because buyers don't always know if the garment would fit well. This is why 20-40% of returns are due to fitting problems. So firstly, it is important to have accurate size chart information on every product pages with clear how-to-measure guide.

Furthermore, having size charts alone are not enough. They are not intuitive to read and most shoppers often skip it if they don't know their own body measurements. The solution for this is to have easy-to-use fit recommender that can suggest the customers the ideal size to purchase using information they could provide easily, such as weight, height and age.

All of these can only be accomplished using a sizing plugin. Kiwi Sizing is designed exactly to tackle the fitting problem for online shopping.

Kiwi Sizing is designed for any e-commerce stores, as long as you need size charts. For example, you can use Kiwi Sizing to create t-shirt size charts, jeans size charts, shoes size charts, ring size charts, bar size charts, swimsuit size charts or even snowboard size charts. The tool is flexible for any type of product and we are here to help you increase conversion and reduce returns!

Certainly! Kiwi Sizing has an intuitive interface with drag-and-drop features to create size charts. There are also an abundance of settings to customize the style and design without touching a single line of code! Embedding Kiwi Sizing on your store may require some initial setup, depending on your platform. But we will be more than happy to assist!

Yes! More and more online shopping these days happen on mobile. The size charts and recommender from Kiwi Sizing works perfectly on mobile devices. However the admin tool works the best on desktop.

Kiwi Sizing is a size chart and fit recommendation plugin for e-commerce stores. We help all kinds of sellers that sells t-shirts, dresses, jackets, shoes, etc. Through our tool, you can easily set up size charts and fit recommenders in minutes without any design or technical background. Our goal is to help you improve your conversion and reduce refunds due to fit issues.

Currently, we are the most popular plugin on Shopify, with over 470 5-star reviews!

We have a native app for Shopify. For detailed instructions on how to install, check out this article.

If you aren't yet on Shopify, consider joining us! Many of our Kiwi merchants switched to Shopify from other platforms!

No! You can sign up Kiwi Sizing without entering any credit card information. The free plan will remain free forever. The credit card info is only needed when you upgrade to a paid plan.

You can create size charts in Kiwi Sizing easily within a minute. After you register, click "Add new size chart" button, then specify what products the size charts is for and input the sizing measurements. For more details, see our start up guide. Or you can see our video tutorial.

See video tutorial on size chart

Creating recommender is quite straight forward as weel. See our Recmomender guide. Or you can see our video tutorial.

See video tutorial on recommender