BTC Hashrate Drawdown: -18.06%
How far the network's computing power has fallen below its own record high. 0% means the network is at full strength; a deep dip means many machines are switched off.
The 30-day average of Bitcoin's total computing power compared with the highest that average has ever reached, shown as a percentage **below** that record.
For example, −25% means smoothed computing power sits a quarter **below** its record — a large share of machines have been unplugged, which happens when the price falls below what electricity costs. Zero means the network has just set a new record.
In past cycles the deepest dips, around −35% to −50%, came within weeks of major price lows, though that is four events across fifteen years.
In words: take the 30-day average computing power, compare it with the highest that average has ever been, and show the shortfall as a percentage [30-day average ÷ record high − 1, times 100].
The 30-day smoothing is deliberate and hides short outages, and a one-day spike **never** counts as a new record. The underlying computing-power figure is itself an estimate rather than a direct measurement.
blockchain.com daily hashrate, stored in our own database (2009 to today) and refreshed hourly. Nothing is fetched from another site when you open this chart.
Own compute from blockchain.com daily data, 2009 to today — nothing is fetched from another site when you open this chart