Bitcoin Halving Cycle
Block 957,879: 819 days since the April 2024 halving, roughly 640 days until the next one around 2028. Historically the strongest gains came 12 to 18 months post-halving.
What is the Bitcoin halving?
Every 210,000 blocks, roughly every four years, the number of new Bitcoin issued per block is cut in half. This is the halving, written into Bitcoin’s code since day one. The most recent halving, in April 2024 at block 840,000, cut the block reward from 6.25 to 3.125 BTC. The next, at block 1,050,000, is expected around 2028 and will cut it to 1.5625 BTC.
Halvings continue until around the year 2140, when the last of the 21 million Bitcoin will have been issued. Each one halves the rate of new supply hitting the market: an instant, predictable, and permanent supply shock.
This page tracks the live block height from mempool.space and converts the distance to and from halvings into days, using the ~10-minute average block time.
Why it matters for the bull market
The famous pattern: each of Bitcoin’s major bull markets has followed a halving, with the strongest price appreciation historically arriving in the 12 to 18 months after the event (2012 into 2013, 2016 into 2017, 2020 into 2021, 2024 into 2025, to differing degrees). The proposed mechanism is simple: demand steady or growing, new supply halved.
This tracker deliberately does not count the halving cycle in its verdict, and the reason is worth being honest about: it is a calendar, not a measurement. It never reacts to what the market is actually doing; a "bullish" halving-window vote would stay bullish through a crash. It also has a sample size of four, and each cycle’s echo has been weaker than the last as the market matures and halvings get priced in. So it lives here as context: where we are in the cycle is worth knowing, but the counted signals measure the market itself.
Frequently asked questions
When is the next Bitcoin halving?
At block 1,050,000, expected around 2028 (the exact date depends on block times). The block reward will fall from 3.125 to 1.5625 BTC. The countdown on this page updates live from the current block height.
Do halvings cause bull markets?
Correlation is strong, every major bull market has followed one, but causation is debated. The supply-shock mechanism is real yet each cycle’s effect has been smaller, suggesting markets increasingly price halvings in ahead of time. Treat the pattern as context, not certainty; with only four halvings, the sample is tiny.
How many halvings are left?
Roughly 30 more, continuing until about the year 2140 when the final satoshi of the 21 million BTC cap is issued. After that, miners will be paid by transaction fees alone.
What does the halving do to miners?
It cuts their block-reward revenue in half overnight. Less efficient miners become unprofitable and shut down until difficulty adjusts or price rises, one reason miner revenue is tracked as a separate signal on this site.