Hold on to that... it's worth its weight in gold.
But is it really? Although it's a common figure of speech, very few things actually meet the criteria.
Let's do the math:
Today, one troy ounce of gold is worth about $1,250. With the help of some basic multiplication and division, and our knowledge of weight conversions, let's derive some other basic gold prices, rounded up to the nearest dollar:
One troy ounce of gold = $1,250
One standard ounce of gold (slice of bread) = $1,140
One pound of gold (loaf of bread) = $18,229
One gram of gold (dollar bill) = $40
One kilogram of gold (pineapple) = $40,187
One ton of gold (small car) = $36,457,500