WooCommerce: Stock Quantity Suffix e.g. “sq. in.”, “Kg”, “boxes”, etc.

Each WooCommerce business is different, which means customization is required to adapt the store to unique specifications.

A clear example is the stock quantity. Not all stores can display the standard notice “11 in stock”. The display could change to “11 Kg in stock” if stock is based on weight. Or maybe “11 boxes in stock” or “11 pairs in stock” in case the package description is useful UX-wise. Also, “11 m³ in stock” if the business sells volumes.

Either way, this is a nice trick to display a “stock quantity suffix” in your WooCommerce Single Product Page. Enjoy!

PHP Snippet: Stock Quantity Suffix @ WooCommerce Single Product Page

/**
 * @snippet       Stock Quantity Suffix @ WooCommerce Single Product
 * @how-to        businessbloomer.com/woocommerce-customization
 * @author        Rodolfo Melogli, Business Bloomer
 * @compatible    WooCommerce 5
 * @community     https://businessbloomer.com/club/
 */

add_filter( 'woocommerce_format_stock_quantity', 'bbloomer_stock_quantity_suffix', 9999, 2 );

function bbloomer_stock_quantity_suffix( $stock_quantity, $product ) {
    $stock_quantity .= ' m<sup>2</sup>'; // CONCATENATE " m2"
    return $stock_quantity;
}

Where to add custom code?

You should place custom PHP in functions.php and custom CSS in style.css of your child theme: where to place WooCommerce customization?

This code still works, unless you report otherwise. To exclude conflicts, temporarily switch to the Storefront theme, disable all plugins except WooCommerce, and test the snippet again: WooCommerce troubleshooting 101

Related content

• WooCommerce Visual Hook Guide: Single Product Page
  Here’s a visual hook guide for the WooCommerce Single Product Page. This is part of my “Visual Hook Guide Series“, through which you can find…
• WooCommerce: Disable Variable Product Price Range $$$-$$$
  You may want to disable the WooCommerce variable product price range which usually looks like $100-$999 when variations have different prices (min $100 and max…
• WooCommerce: Hide Price & Add to Cart for Logged Out Users
  You may want to force users to login in order to see prices and add products to cart. That means you must hide add to…
• WooCommerce: Add Custom Field to Product Variations
  Adding and displaying custom fields on WooCommerce products is quite simple. For example, you can add a “RRP/MSRP” field to a product, or maybe use…
• WooCommerce: Show Number Of Products Sold @ Product Page
  WooCommerce database already stores the number of products sold for you. Therefore, you may want to show such number on the product page, close to…

Rodolfo Melogli

Business Bloomer Founder

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as an independent WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza. Follow @rmelogli