Tare weight is the weight of an empty vehicle or container. By subtracting it from the
gross weight (laden weight), the weight of the goods carried (the
net weight) may be determined. This can be useful in computing the cost of the goods carried for purposes of
taxation (sometimes called a
tariff) or for
tolls related to barge, rail, road, or other traffic, especially where the toll will vary with the value of the goods carried (eg tolls on the
Erie Canal). Tare weight is often published upon the sides of
railway cars to faciltate the computation of the load carried.
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