Ia there a formula to seeing how much a coin is worth based on its silver content. With all condition and rare dates a side. For example how much is a 64 quarter or dime or even half dollar I'm just confused on how they get their prices for buying silver coins
The website Coinflation udates silver prices daily based on content. http://www.coinflation.com/silver_coin_values.html
Keep in mind coinflation is simply a guide. How much a dealer, a private party or a pawn shop will pay you are all completely different.
This is absolutely true. Coinflation gives you the value of the coin based on the current spot value of the metal. If you go to sell it to someone...odds are you will be a percentage of the spot value.
Take the price of silver by the ounce, and multiply it by the silver content by the ounce. The 90% dollar is .77344 ounces The 40% dollar is .3161 ounces The 90% half is .36169 ounces The 40% half is .1479 ounces The quarter is .18084 ounces The dime is .07234 ounces However, when selling to a dealer, pawnshop or a B&M, you will not get full melt price as they buy low to sell high. You might receive between 24-27 times the face value depending on where you try to sell them for silver content.
Coininfo.com updates the prices every 60 seconds. Also give karat values of gold and a lot more. Try coininfo.com
I simply memorize the percent of silver in half dimes through half dollars, and the silver dollar number, so I can do my own math based on any market I wish. I use .73 for everything but dollars, which are .78, (both round numbers). Then a dollar worth of smaller coins has .73 ounces of silver approximately, so you can do the math based on any silver market. Maybe I am too into numbers.