A web search says (as of January 2024) there are 777 million kilograms of silver.

https://tinyurl.com/3jbhxux4

Q. How many Troy ounces are there in a kilogram?
A. There are 32.15 Troy ounces in a kilogram, near enough.

Q. How many troy ounces of silver are there in 777 million KG?
A. 777 million multiplied by 32.15 = 24980.55 million ( 24,980,550,000 Troy oz ) about 25 Billion, near enough.

Q. What is the world population?
A. About 8 Billion, near enough.

Q. How much silver is there for every person in the world today?
A. 25/8 = 3.125 TROY OUNCES of silver per person.

That 3.125 Troy ounces includes the silver for your electronics, solar panels, jewelry, silverware, etc.
Don’t forget some silver for investment purposes. Perhaps a few silver coins?