Metering associates with the continuos flow of a commodity or product that and is difficult to batch measure. At the point of use, electricity, natural gas, and water are continuously metered and totalized. The total amount used within a period of time, usually a month, is then multiplied by the commodity charge plus a tariff for the some or all of the local, state and federal governments. The dispension of gasoline and diesel fuel oils are another example of metering.
Measuring associates with the dispensing of a proucuct in a single batch. When one orders at the deli counter, the products are dispensed by weight which is measured. Also, most of the packaged food products purchased at a supermarket are premeasured either by weight or volume. A cup of coffee is another product that is measured and not metered.