As long as you have purchased clothes online, you must have had this experience: the size is not clearly defined on the website, so you are not sure if it fits but have to go to other stores, or buy multiple sizes and return the ones that runs too big or too small. This is why the product size chart is so important to sellers in the apparel and fashion industry. Research has shown that, over 40% of online clothing returns are due to sizes.

Having complete and accurate size information can improve conversion rate, increase custom satisfaction, reduce customer support cost, and lower returns. And yet it is often not prioritized by merchants because of the effort and time needed. Luckily, there are software that can make this process easy, even if you have thousands of product sizing to manage.

Today we will share 3 sizing app for BigCommerce and you can get started today to improve your sizing information.

1. Kiwi Sizing for BigCommerce

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

Kiwi Sizing is a leading size chart app with over 14,000 active installs and 5-star reviews globally. It started out on Shopify and made it to the top. Now it’s also fully compatible with BigCommerce and WooCommerce. There are three fabulous features that make Kiwi Sizing stand out: Sizing Fit Recommenders, Advanced Sizing Table, and Unit Conversion, which shows that Kiwi Sizing is not only a simple size chart app but can directly recommend shoppers the right fit to purchase.

Sizing Fit Recommenders

There are three different types of built-in recommenders, including Advanced Apparel Recommender, a machine learning based body size prediction based on age or gender, Generic Table Recommender for products not being able to predict body size, and Custom Size Recommender, which you can create a size chart based on your needs. You can choose from these recommenders accordingly to give your customers a better idea of how your products will fit them!

Create Size Recommender | Kiwi Sizing - Sizing plugin for Shopify and e-commerce platforms
Kiwi Sizing helps increase sales and lower returns with size recommendation system and size charts. Help shoppers to buy right size clothing and apparel with recommendation plugin. Perfect for fashion shops on Shopify, WooCommerce, BigCommerce and other e-commerce platforms
Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

Advanced Sizing Table & automatic unit conversion

Kiwi offers a powerful tool to build size tables with automatic unit conversions. You can simply select the unit in the table and the plugin will do the magic (math). You can also control how it is displayed, from where the unit text is to the number of decimals to round up to. This app can also detect the shopper's location and display the sizing info that locals use. For instance, it will show inches to customers in the US and centimeters to those in Japan.

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!
Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

Flexible Size Chart layout

There are more than 10 different layout types you can add in kiwi to create any  type of size chart you want for a better customer experience. From images and videos to more complex layout like tabs and accordions.

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!
Create Size Charts | Kiwi Sizing - Sizing plugin for Shopify and e-commerce platforms
Kiwi Sizing helps increase sales and lower returns with size recommendation system and size charts. Perfect for fashion shops on Shopify, Big Commerce and other e-commerce platforms. Free to create Size Chart for apparel sizes, clothing size, shoes size, bra size and more.

Ultimate style customizations & settings

Everything displayed in Kiwi can be customized in the settings. Through the simple & intuitive interface, you can make the look & feel fit right with your store's branding.

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

There are more features on Kiwi Sizing, including in-app analytics, Google Analytics integration, floating size chart buttons, etc, to make your website “more fit.” Kiwi Sizing offers a free version for eCommerce beginners to own high-quality size charts with no pressure. As your business grows, you can upgrade to other suitable solutions at Kiwi.

Pricing | Kiwi Sizings - Sizing plugin for Shopify and e-commerce platforms
Kiwi Sizing helps increase sales and lower returns with size recommendation system and size charts. Perfect for fashion shops on Shopify, Big Commerce and other e-commerce platforms.

2. Prikid Size Charts

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

Prikid Size Charts is a simple size chart app for BigCommerce stores. After installation, it allows you to add a button or link to each product page and show a popup window of sizing information once clicked.

One chart works for all

Instead of creating different charts or images and uploading them to the description section, Prikid Size Charts can be built and managed in one place. It saves you much time and effort to go into each product page to insert or edit a size table.

With its chart editor, you can also add text or images and insert content from spreadsheets to make it match the brand image and easy to use for your customers.

Automatically add a popup window

Prikid Size Charts shows up on the product page as a pop-up. A button or link will instantly be added to your product page and linked to the size charts you created. It also has measurement conversions, allowing consumers to choose their preferred metric.  

Among its practical features, one of the best parts is that Prikid Size Charts is free to use!

3. Size Guides by IntuitSolutions

Top 3 BigCommerce Size Chart Apps That Make Your Website More “Fit”!

Size Guides is another well-known, easy-to-use size chart app for BigCommerce users. By installing it, your customers can click a button or a link to access the comprehensive sizing information for all or specific products in a modal popup.

Easily Manage In Merchant Center

With Size Guides, you can simply manage all the documents from a single folder in the Merchant Center, and no coding needed. Different metric systems are displayed on the same table, allowing customers to choose the size they are familiar with.

Customized Chart for Specific products

You can create size charts for the entire brand or particular products. Some products’ sizing information is more generic while some have to be more precise.

Unfortunately the pricing for this app is more opaque and unfriendly. They provide a quote upon request, with prices starting at $995. And the installation takes 1-3 business days.


The importance of size charts is often overlooked by sellers, but they are one of the most critical keys to the success of an online store, especially for apparel, fashions, and shoe sellers. We hope that through today's introduction of these three size chart apps, you will be able to better understand the use and value of size charts. And if you have not yet had a sizing plugin in hand, try out the above three apps to upgrade your business to another level!

Kiwi Sizing Showcase is the perfect place to find inspiration for your eCommerce store, check out more:

Kiwi Sizing size recommender showcase - collection of best size recommender created with Kiwi Sizing sizing app
Kiwi Sizing created a collection of the best size recommender showcase built with Kiwi Sizing sizing app. Find your inspiration and see what the Kiwi Sizing can do for your ecommerce business. Create size recommender for fashion shops on Shopify, WooCommerce, BigCommerce and other e-commerce platfor…

To reduce the return rate after a successful sale, we also recommend that you can create a size chart with unit conversion to make your customers pick the unit they are most comfortable to think in to make a purchase decision.

Or use Kiwi Sizing AI Size Recommender as a size chart tool. It will recommend the most suitable size of products for customers to reduce return rate, help you decrease the cost of the return, and to create a positive cycle of your e-commerce business.