On June 12, 2025, Bitcoin mining difficulty increased by 7.96% after reaching block number 905184, resulting in a total of 126.27 trillion.
Mining BTC has become more difficult. The difficulty change on Saturday raised the level by 7.96%, marking the ninth increase this year and five decreases. The difficulty metric has no units — it simply illustrates how much harder it is to find a block compared to Bitcoin’s original difficulty level, which was set at 1 when the network launched. At the current difficulty level of 126.27 trillion, miners must generate an average of 126.27 trillion hashes to find a winning block that meets the network goal and is considered valid. Before the difficulty change, the profit from mining Bitcoin was approximately $64.03 per petahash per second (PH/s). However, after the difficulty increase, the cost per hash rate dropped to $59.01.
Source: cryptonews.net
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