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Bitcoin calculator FAQ
← The calculator Methodology & sources
Not financial advice.
Common questions
What is this calculator?
It asks a simple “what if” question. Take some of the biggest pots of money in the world, like gold, stocks and homes. If Bitcoin held a small slice of that money, what would one bitcoin be worth? The math is: (market size × share) ÷ number of bitcoins.
Is this a price prediction?
No. The share you pick is an assumption, not a forecast. The page shows what a given share would mean. It does not say Bitcoin will ever reach that share.
Why these markets?
These are big places where people store wealth: gold, stocks, bonds, loans (bank credit), real estate, money and art. Some people see Bitcoin as a new way to store wealth, so it is compared with them. You can untick any market you don’t think fits.
Why does supply matter, and why 21M?
The price of one coin is the total value split across all the coins. Bitcoin’s rules cap the supply at 21 million coins. About 20.1 million exist today, and new coins are added more slowly over time. So the calculator uses about 20.1M for today and 21M for future years.
Why do the numbers differ from Mark Moss's?
We use sizes from published sources with dates (such as the BIS, SIFMA and Savills). The two biggest differences are loans and art. Our loans figure (BIS bank credit, about $101.9T) is about $32T bigger than his. His art figure is much broader: we count only art held by the very wealthiest collectors, about $2.6T, versus about $27T in his basket. The totals end up close: about $992T here and about $996T in his basket.
What does 'share' mean?
Share is the slice of the chosen markets that you imagine sitting in Bitcoin instead. For example, 1% of a $992T pie is about $9.9T.
Why do the growth rates differ?
Each market has grown at its own pace in the past. Gold, real estate, bonds, loans and art use rates worked out from their sources. Stocks (7%) and money (6%) are assumptions, because we could not verify a long-run rate. You can set one rate for everything with the override box.
Can BTC really take 10%?
Nobody knows. A 10% share would be a huge change from about 0.17% today. The calculator lets you explore the idea. It cannot tell you whether it will happen.
What are the risks?
Bitcoin’s price can swing a lot, often 50% or more. Rules and laws can change. It can drop a lot and stay down for years, and it could go to zero. Only use money you can afford to lose.
Where does the data come from?
From public sources: World Gold Council and Kitco (gold), SIFMA (stocks), the BIS (bonds and bank credit), Savills (real estate), an M2 money aggregator, Deloitte/ArtTactic (art) and blockchain.info (Bitcoin supply). See Methodology & sources for links and dates.
How often is it updated?
By hand, when we refresh the sources. Each number on the methodology page shows its date. The current set was compiled on Oct 16, 2026. Prices move every day, so you can edit any number in the calculator yourself.
How do I buy safely?
Start small, with an amount you could lose. Use a reputable exchange with a long track record, and turn on strong security, such as an authenticator app. Then learn self-custody: holding your own keys in your own wallet, with your recovery words written down offline. Never share those words with anyone. Ignore anyone who messages you first offering help.
← The calculator Methodology & sources
Inspired by Mark Moss's Bitcoin Valuation Lab.