Magento Weight Calculator
The Magento product weight field uses a 10 digit decimal system. If you are in the US , you are using to weigh your products which is a 16 digit system. That means you can’t always enter ounces into your Magento weight field. This is a common misunderstanding with Magento weight calculation that can result in errors with shipping charges, especially for orders with multiple products where these errors can compound.
To get our Magento product weights correct you need to do is to translate a formula your Magento product’s weight in ounces by 0.0625 to derive the decimal equivalent and round as you see fit. Use our handy Magento weight calculator to figure out your Magento weights.