How to change number of related products being displayed on product page in Woocommerce?

I’ve created seven products with a tag in common i.e. ‘xyz’.

Now go to product page from front end. Initially it will display only two related products:

Now add the following lines of code at the end of your theme’s functions.php file:

function woocommerce_output_related_products() {

                woocommerce_related_products(array('posts_per_page' => 6, 'columns' => 2, 'orderby' => 'rand'));

}

Go to product page again and you’ll see 6 related products.

CHEER SJ