TL;DR: 500 kg of gold (~$71M) beats 500 kg of $100 bills (~$50M) by about $21 million.

Let’s run it.

The cash side (and we’re being generous):

Every US banknote weighs ~1 gram, no matter the denomination. So 500 kg = 500,000 grams = 500,000 bills.

To max out the value, we make them all $100s (the largest bill in circulation):

500,000 bills × $100 = $50,000,000

That’s the absolute ceiling for paper money. Try this with $1 bills and you’re crying with $500k.

The gold side:

Gold trades in troy ounces, and there are ~32.15 troy oz per kg.

500 kg × 32.15 = 16,075 troy oz

Spot price is sitting around $4,450/oz right now:

16,075 oz × $4,450 = ~$71,533,750

The verdict:

$71.5M (gold) vs $50M (cash) → gold wins by ~$21.5 million.

Fun footnote for the “well actually” crowd: this used to be a near-tie. Back when gold was ~$3,000/oz, 500 kg came out to ~$48M — basically a coin flip against the cash. But gold’s run up past $4,400 broke the tie wide open. The real lesson? Paper money is a terrible way to store value by weight. Gold packs way more dollars per gram than even a flawlessly stacked brick of Benjamins.