How much Bitcoin is actually available to use?

[madmax]

Although 20 million BTC will have been mined, 2.3–3.7 million are considered permanently lost due to:

Forgotten wallets and passwords

Lost hardware

Invalid or burned addresses

Early coins held by Satoshi Nakamoto

This means effective circulating supply may be 15.8–17.5 million BTC, making Bitcoin scarcer than the 21 million cap suggests.

[tradelikepro]

2.3–3.7 million BTC lost forever… that’s like trillions just evaporated