Custom
Size Recommender

Create completely customized recommender with control of the inputs and recommendation logic.

You can use this for any products.

Full customizability

If you know how size should be calculated, you can set up a custom recommender!

Reduce returns

Reduce shopping hesitation and chances of buying the wrong size.

Happy customers

Avoid unhappy customers by making online shopping stress-free with the easy-to-use tool.

Powerful creation editor


Flexible recommender steps

You can add "number input" or "select input" steps to collect customer data and set up "recommendation" steps to calculate the result. The recommendation steps can use input data to make decision.

Intuitive UI

The creation editor is easy to use with a preview to immediately test out the result during setup.

No coding skill needed

Almost everything is customizable without having to write code. As long as you have the logics thought out, any non-technical person can set it up via the editor.

Using code for advanced users


Set up custom variables

Set up more complex data types (i.e. JSON) that you can access later in the recommendation steps

Dynamically generate options

Generate select options dynamically using javascript code. This gives even greater flexibility.

Elevate your online shop with Kiwi Sizing.

Try for free today.

No credit card needed.

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!

Kiwi Sizing supports any e-commerce platforms. We have a native app for Shopify, and native plugin for WooCommerce. For other platforms like BigCommerce, Magento, 3dcart, Volusion, Kiwi Sizing can be integrated by adding some custom code onto the store settings. See our documentation guides to see how to integrate with your ecommerce platform.

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