illustration of Kiwi Sizing fit recommendation to reduce return and improve conversion

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

Improve conversion and lower returns.

See demos

Support all e-commerce platforms including...

Most retailers experience 20% - 40% return for online sales, with poor fit as the most common reason.

We can help.

How does it work?

Size Recommender

Improve conversion & lower returns

Recording of Kiwi Sizing fit recommender plugin feature. Help improve conversion and reduce returns.

Size Recommender

Improve conversion & lower returns

Improve conversion rate

With machine learning models that estimate human body measurements, our Fit Recommender can quickly help buyers figure out the ideal size to purchase. Perfect for apparel, shoes and bra sellers.

Reduce shopping hesitation & friction

Concern around sizes is one of the biggest reasons for shopper drop-offs. Our Fit Recommender reduces the friction and hesitation by only asking for basic information the buyers already know about themselves, and instantly provide a size recommendation.

Lower customer support needs

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

See it in action ⟶

Size Charts

Stylish and effective size charts

Recording of Kiwi Sizing size chart plugin feature

Size Charts

Stylish and effective size charts

Easy to manage different products sizes

Kiwi Sizing is designed for you to manage more than hundreds of different size information. You can set up size layout template for a product type and then only adjust the measurement numbers for each product. Making all size charts look professional and consistent.

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.

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!

See it in action ⟶


Simple & transparent pricing - affordable to businesses of all sizes

14-days trial for any paid plans


Free forever
Get Started
  • Max 2 Size Charts
  • Full Style Customization
  • Automatic Unit Conversion
  • Dynamic Size Charts
Save 20%


Per Month
Start Free Trial

All the benefits of Free, and:

  • Unlimited Size Charts
  • Automatic Unit Detection by Location
  • Basic Analytics
Save 20%


Per Month
Start Free Trial

All the benefits of Premium, and:

  • Advanced Apparel Recommender
  • Custom Recommender
  • Advanced Analytics
Learn more about pricing details


See why shops around the world love Kiwi Sizing

Best size app out there hands down! I love the size recommender feature, it's a feature you see on big sites and this app makes that technology available for us too! Love it, keep it up!


Swimming Apparel

I have wanted an app like this for my online store for over 10 years! This is fantastic, it is very intuitive and easy to create custom size charts that customers can even find out their size...


Lingerie Fashion

...I have a store with 300+ dresses, most with different sizing, so I just made one beautiful template & applied it to all the dresses. It's been a lot easier than I anticipated for a store with that many size charts.


Women Apparel

For an entire year - we have had such major issues with sizing charts...because we were having high return rate, too many emails about sizing chart confusion, and high exchange rate....Found this app and it hit the nail in every aspect of what I'm needing... including dynamic sizing suggestions...


Fitness Fashion

Let us help you with your sizing problems!

And keep your customers happy.


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.

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

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.