What XAU means
XAU is the ISO 4217 code for one troy ounce of gold. Codes that begin with X are used for things that aren't a single country's money — precious metals, some supranational currencies, and special units.
Bitcoin, measured in gold
How many ounces of gold is one bitcoin?
Enter both prices in the same currency. The currency then cancels out, and what remains is the ratio between two scarce things.
Results
One bitcoin buys
— oz t
- In grams
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- In kilograms
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- One troy ounce costs
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- One gram costs
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Reading the ratio
The troy ounce
Precious metals are weighed in troy ounces. One troy ounce is exactly 31.1034768 grams — about ten percent heavier than the everyday avoirdupois ounce of about 28.35 grams.
Why compare them directly
When both prices are in the same currency, that currency cancels out of the ratio. A weaker or stronger dollar, euro, or yen moves both prices, but not the answer here.
Two kinds of scarcity
Bitcoin's rules cap its supply at just under 21 million coins. Gold has no fixed cap: miners keep adding new metal each year to the gold already above ground.
There are no live prices on this page. The result is only as current as the numbers you type. Nothing here is financial advice.