Network & mining

Difficulty Adjustment Countdown

Learn how a countdown estimates the next Bitcoin difficulty adjustment.

Runs locally

Security & privacy. Calculations run locally. Check the network and inputs. Estimates of fees, policy acceptance, prices and future block timing are not guarantees.

Use this tool

Calculates on your device. Results that depend on future blocks or policy are estimates.

Block-based countdown. Clock time uses the target spacing; regtest has retargeting disabled.

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What this tool is for

Bitcoin periodically adjusts proof-of-work difficulty. A remaining-block count is clearer than an exact clock prediction because future block arrival times are unknown.

Supported behavior

Block-based countdown. Clock time uses the target spacing; regtest has retargeting disabled.

Security & privacy

Calculations run locally. Check the network and inputs. Estimates of fees, policy acceptance, prices and future block timing are not guarantees.