Saudi Arabia’s gold, as a single cube

The holding

Saudi Arabia’s gold reserve, in proportion

Saudi Arabia's central bank holds about 323 tonnes of gold — a major holder, inside the global top twenty. That is a number most people cannot picture, so picture this instead: gathered into one solid block, every bar of it would form a cube roughly 2.6 m on each side — taller than a basketball hoop. Gold is so dense (19.32 grams per cubic centimetre, about two and a half times the density of iron) that Saudi Arabia's entire reserve, worth approximately $43 billion, would occupy only about 17 cubic meters.

Gold makes up 10.0% of Saudi Arabia's official reserves — a deliberately small gold share — Saudi Arabia keeps most of its reserves in dollars, euros and other currencies, holding bullion as a strategic minority. Measured against the world's monetary gold, that block is about 0.9% of all the bullion held by every central bank and treasury on the planet. Saudi Arabia sits in the Middle East.

The metal is held at Saudi Central Bank (SAMA), Riyadh. In recent years the holding has been held steady — neither bought nor sold in any size — a quiet vote of confidence in gold's role as a permanent reserve asset. Whether a reserve is growing or steady, its physical footprint barely changes: even doubling Saudi Arabia's gold would only widen the cube by about a quarter — the defining paradox of the metal is that staggering value keeps collapsing into a remarkably small space.

It is worth holding the comparison in mind. The largest reserve on Earth, the United States', is a cube only 7.5 m per side; all the gold ever mined in human history fits inside a cube about 22 m per side — the size of a seven-story building. Saudi Arabia's share of that 6,000-year inheritance is the block you see above.