it depends on how the eCart object is set up.
in the eCart object, there is an option to set the weight units.
the weights in your database need to use the same units as the eCart object is set to use.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.