But don't worry, UPS isn't just pulling numbers out of thin air - they have a system in place to calculate the dimensional weight. They multiply the length, width, and height of your package, and then divide it by a magic number (okay, it's actually 166, but let's just call it magic). The result is the dimensional weight, which is then compared to the actual weight of your package - and the higher of the two is used to determine the shipping cost.
So, if you're shipping something like a feather boa or a cloud (just kidding, you can't ship a cloud... or can you?), the actual weight would be super low, but the dimensional weight would be higher, so that's what you'd get charged for. On the other hand, if you're shipping something like a bag of rocks or a lead weight (no, really, don't ship those things), the actual weight would be higher, and that's what you'd get charged for.
What Size Ups Do I Need Calculator at Michele Huff blog
