How much silver by weight is in pre-1964 us change?

Answer 1

US dimes, quarters, and half dollars dated 1964 and earlier are made of 90% silver and 10% copper.

The same ratio is in dollar coins dated 1935 and earlier.

For coins dated 1965 and later, the only ones to contain any silver are half dollars dated 1965 to 1969. They're 40% silver. Any other date or denomination is either cupronickel or brass ($1 coins only, in brass).

Answer 2

Pre-1964 US dimes, quarters, and half-dollars contain 90% silver by weight. A dime is approximately 2.5 grams of silver, a quarter is 6.25 grams, and a half-dollar is 12.5 grams, making it easy to calculate the silver content based on the face value of the coins. For example, a $1 face value in pre-1964 coins would contain approximately 0.715 ounces (20.17 grams) of silver.