Mining Difficulty
How hard is it to mine a Bitcoin block right now?
Every two weeks, Bitcoin automatically adjusts how hard it is to mine a block. Read more
The last adjustment was downward (-10.1%). Some miners may have shut down, though a single negative adjustment can also come from temporary factors like equipment maintenance cycles or regional power outages. If the next adjustment is also negative, it becomes more meaningful.
| Date | Change | New Difficulty | Direction |
|---|---|---|---|
| 2026-06-14 | -10.09% | 124.93T | ▼ |
| 2026-05-29 | +1.72% | 138.96T | ▲ |
| 2026-05-15 | +3.12% | 136.61T | ▲ |
| 2026-05-02 | -2.30% | 132.47T | ▼ |
| 2026-04-17 | -2.43% | 135.59T | ▼ |
| 2026-04-03 | +3.87% | 138.97T | ▲ |
Hashrate drives difficulty. When hashrate grows, difficulty follows ~2 weeks later. Hashrate is the primary mining signal — this page confirms it.
When difficulty goes up but Bitcoin's price doesn't, miner revenue per unit shrinks. Difficulty and hash price are two sides of the same coin.
Understanding Mining Difficulty
Bitcoin has a built-in thermostat. Every 2,016 blocks (about two weeks), it checks whether blocks have been coming too fast or too slow. If miners found blocks too quickly (meaning more computing power joined), difficulty goes up. If blocks were too slow (miners left), difficulty goes down. It's automatic and elegant.
Over Bitcoin's lifetime, difficulty has almost exclusively gone up. That's because the mining industry keeps growing — better hardware, cheaper electricity, more investment. Downward adjustments are rare and meaningful. The biggest drops happened during the 2018 bear market, the 2021 China mining ban, and after halvings when weaker miners couldn't compete with reduced rewards. These moments of miner stress have historically aligned with market bottoms.
Difficulty drops are rare and they matter. They mean enough miners have turned off their machines to actually slow down block production. A single negative adjustment can be noise — equipment cycles, seasonal power changes. But two or three in a row is a genuine signal that miners are under sustained pressure.
This is a lagging indicator — it only updates every two weeks and reacts to changes that already happened. But that simplicity is also its strength: a sustained series of difficulty increases confirms the network is healthy, while difficulty drops confirm miners are hurting.