Price per unit PRO
This is a plug-in for WooCommerce which will help you to sell products where can be important for the customer to know how much a weight unit costs.
For example when selling food. Price is recalculated per weight and then shown according to your liking. The rules can be set store-wide or just for certain products. It also works on custom units, so you can make your own.
Main function of the plug-in is to take the price divide it by number of units and display that on your store. Variability of this plug-in is big.