Difficulty adjustment

Next Bitcoin difficulty adjustment

Every 2,016 blocks Bitcoin recalibrates how hard it is to mine a block, so blocks keep arriving every ten minutes on average. Each epoch is also a FreeBTC season.

Estimated change+6.70%
Blocks remaining121
Average block time9:22
Estimated dateOct 16, 202618h 54m
Current difficulty132.7T
Epoch progress · 1,896 / 2016
This epoch is FreeBTC season 481Play this seasonHow difficulty works

Bitcoin difficulty history

Every point is one retarget since 2009. On a logarithmic scale the whole history fits: from difficulty 1 on a CPU to today’s industrial mining.

Difficulty since 2009 · log scale
11K1M1B1T
Dec 2009Feb 2015Nov 2020Oct 2026
Last 26 adjustments · % change
-10%0%+10%
Oct 16, 25Apr 17, 26Oct 3, 26

Recent epochs

Start heightDateDifficulty
969,696Oct 3, 2026132.7T