Are there any estimates on the amount of bitcoins that have been permanently lost?

5 answers

• Angela MLJul 12, 2025 · a year ago
  Unfortunately, it's difficult to determine the exact number of bitcoins that have been permanently lost. This is because bitcoins are stored in digital wallets, and if the private keys to these wallets are lost or forgotten, the bitcoins within them become inaccessible. However, various studies and estimates suggest that a significant number of bitcoins have been lost over the years. Some estimates put the figure at around 20% of the total supply of bitcoins. This means that out of the 21 million bitcoins that will ever exist, around 4.2 million may be permanently lost.
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• Steen GravgaardDec 20, 2025 · 6 months ago
  There's no denying that lost bitcoins are a real concern in the cryptocurrency space. With the increasing popularity of bitcoin and the rise in its value, it's not uncommon for people to misplace or forget their private keys. Whether it's due to hardware failure, accidental deletion, or simply forgetting passwords, the result is the same – those bitcoins are lost forever. This loss of supply can have an impact on the overall value of bitcoins, as it reduces the available circulating supply. However, it's worth noting that the impact may be minimal in the long run, considering the finite supply of bitcoins and the increasing adoption of the cryptocurrency.
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• Rebecca AgustinaMay 09, 2021 · 5 years ago
  According to some estimates, around 3-4 million bitcoins have been permanently lost. This number is based on various factors, such as the number of dormant or inactive wallets, known cases of lost bitcoins, and analysis of blockchain data. It's important to remember that these estimates are not definitive and can vary. Additionally, it's worth mentioning that the concept of 'lost' bitcoins is not entirely accurate, as it assumes that these bitcoins are irretrievable. In reality, there is always a possibility of recovering lost bitcoins through advanced techniques and technologies, although it may be a complex and costly process.
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• BorkaddOct 02, 2020 · 6 years ago
  As an expert in the field, I can confirm that estimating the exact number of permanently lost bitcoins is a challenging task. However, it's widely acknowledged that a significant portion of bitcoins has been lost due to various reasons, such as forgotten passwords, misplaced hardware wallets, and other human errors. This loss of bitcoins has a direct impact on the overall supply and value of the cryptocurrency. It's crucial for bitcoin holders to take proper security measures and backup their private keys to avoid the risk of losing their bitcoins permanently.
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• Mohamad BdeirJul 23, 2022 · 4 years ago
  While it's difficult to provide an exact figure, it's safe to say that a substantial number of bitcoins have been permanently lost. This is a common issue in the cryptocurrency world, as the decentralized nature of bitcoin means that there is no central authority to recover lost or stolen bitcoins. It's estimated that thousands of bitcoins are lost every year, either due to user error or malicious activities. This loss of bitcoins can have a negative impact on the overall supply and value of the cryptocurrency, as it reduces the available circulating supply.
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