Abstract: A method for determining an appropriate (e.g., least expensive) shipping carrier of a plurality of shipping carriers for a parcel comprises associating with the parcel computer-readable information relating to at least a destination, delivery date, and delivery mode of the parcel. The method further comprises measuring a weight and volume of the parcel and inputting the computer-readable information, weight, and volume into a computer. The method still further comprises using the computer, selecting the appropriate shipping carrier for the parcel. A system is also provided for determining a most appropriate shipping carrier.