Has the volume of a soup can changed over years?

Yes, the standard volume of a soup can has changed since the first half of the 20th century.

* In 1930, the volume of a standard soup can was 19.5 ounces.

* In 1950, the amount was decreased to 18.5 ounces.

* In 1965, the standard was reduced again to 16 ounces.

* Presently, most canned soups have a net weight of 15 ounces, although some brands in North America still maintain the 19.5 ounce size and many 15-ounce cans display the equivalent measurement of 1 pint and 11 ounces to emphasize the "pint" part.

The can size for condensed soup has also diminished with a change from 11.5 ounces in the 1930s to the present standard of 10.75 ounces.

While the price of a can of soup may have remained about the same over the decades or become slightly more expensive, consumers have gotten less soup for their money due to the decrease in volume.