Eight ounces of fat-free milk will cost you 90 calories, but provide you with 30% of your daily dose of calcium.

A few ounces of dried mushrooms will cost $2 to $5.

A mere 0.15 ounce of a special product for the eyes and lips can cost over $10.

An ounce of Dior's Capture, for example, costs $65.

Two ounces of fine Caspian Sea sevruga or osetra may cost $100 or more.

The price depends on the caviar's grade, but an ounce of high quality roe will generally cost about $70.

Six ounces cost $15 at Estee Lauder counters.

Vienna Roast, French Roast and Guatemala beans were $10 a pound each; 48 ounces cost $30, no tax.

An ounce of Coca-Cola, which cost 2 cents in 1980, cost the same last year.

An ounce of silver costs an affordable 225p, just as it did in 1976.