Dear friend,

Unfortunately there is no ability to set up product unit as weight in Merchium. But we can suggest that you should try to set up product options for your products. It will allow your customers to add different weight of the products with the corresponding price modifiers to the cart. For example, you can create the Weight product option and set up the variants like 250 gr, 500 gr, 1kg, 2kg, etc.

Here is the article in our Knowledge base on how to set up product options:

http://help.merchium.com/support/solutions/articles/1000040970-product-options

 

Thank you.