how much gold is in 24 karat gold
Fineness Various ways of expressing fineness have been used and two remain in common use: millesimal fineness expressed in units of parts per 1,000[1] and karats used only for gold. Karats measure the parts per 24, so that 18 karat = ​18⁄24 = 75% and 24 karat gold is considered 100% gold.[2]
Gold As of 2014, the world's largest gold producer by far was China with 450 tonnes and it was expected to reach 490 in 2015. The second-largest producer, Australia, mined 274 tonnes in the same year, followed by Russia with 247 tonnes.[13]
Gold mining As of 2016, the world's largest gold producer was China with 463.7 tonnes. The second-largest producer, Australia, mined 287.3 tonnes in the same year, followed by Russia with 274.4 tonnes.[1]
Olympic-size swimming pool 2,500 m3 (88,000 cu ft) in cubic units. About 2 acre-feet.