Value

I'm curious to know how much gold would be the equivalent of 10¹⁵ (a quadrillion) dollars.

Friday morning, the price of gold took a 1.4% drop rather fast from the high of $1795/oz to $1770/oz.

In trying to answer this question, I got caught up in two different weights of ounce or pound. I really hope that kilogram is unambiguous. There's also the "bid" vs. the "ask" price. So I'm going to round to $57000/kilo.

Therefore: $10¹⁵ / ($57000/kilo) = 1.75 * 10¹⁰ kilos = 17.5 million metric tonnes. Each tonne is 1.1 (ordinary) tons. Therefore, let's round further to 18 million tons of gold.

It appears that a bit under a quarter-million tons have been discovered on the earth.