Bitcoin (BTC) Market Cap
Crypto · Updated just now
What-if calculator
Project BTC's market cap at a different price.
Current: $80,515.80 × 20,102,653 = $1.62T
About
Bitcoin (BTC) has a market cap of $1,618,581,188,417. Bitcoin's supply is strictly capped at 21 million coins, with new issuance halving roughly every four years. Fully diluted valuation (FDV) uses the 21M cap — a meaningful ceiling because no more bitcoin can ever be created. Use the calculator below to project what BTC's market cap would be at a target price.
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Frequently asked
What is Bitcoin's market cap?
Bitcoin (BTC) has a market cap of $1.62T at a price of $80,515.80.
How is Bitcoin's market cap calculated?
Market cap = $80,515.80 × 20,102,653 = $1.62T. Price times circulating supply.
How often is Bitcoin's price updated?
Prices stream live from Binance's WebSocket (≈1-second latency).
Where does Bitcoin's data come from?
Metadata (supply, symbol) from CoinGecko; price from Binance WebSocket.
What will Bitcoin's market cap be if it reaches $200,000?
At $200,000 × 19.9M circulating supply, Bitcoin's market cap would be about $4 trillion — roughly 3× current levels.