Bitcoin Halving Countdown & Cycle Timeline
A live countdown to the next Bitcoin halving (estimated April 2028), plus a timeline of every past cycle — halving price, top, and bottom. No signup, runs entirely in your browser.
The halving happens at block 1,050,000, not on a fixed calendar date. The April 17, 2028 estimate assumes an average 10-minute block time; the real date drifts as mining difficulty adjusts.
Past Halving Cycles
Prices are approximate, publicly reported figures rounded for readability. Past cycles do not predict future performance — this timeline is for education, not investment advice.
How the Halving Countdown Works
- 1The countdown ticks down to the estimated date of the 5th halving — around 17 April 2028.
- 2The progress bar shows how far you are through the current four-year cycle, measured from the April 2024 halving.
- 3The timeline lists each past cycle: the price at the halving, the cycle top, and the cycle bottom.
- 4Compare the multiples and drawdowns across cycles to see the pattern of diminishing returns.
Reading the Four-Year Cycle
Bitcoin's halving happens every 210,000 blocks, which works out to roughly four years. Each of the past three cycles followed a similar rhythm: the halving tightens new supply, a bull market builds and peaks 12–18 months later, then a deep bear market resets the price before the next halving. After the 2016 halving, Bitcoin climbed from about $650 to nearly $19,800 — a 30× move — before falling roughly 84% to around $3,200. After 2020 it went from about $8,600 to near $69,000 (an 8× move) before dropping about 78%.
The most important thing the timeline reveals is diminishing returns: each cycle's percentage gain has been smaller than the last as Bitcoin's market grows and matures. A pattern that turned $650 into $19,800 is unlikely to repeat at the same magnitude from a base near $64,000. That is why the countdown and timeline are framed as education, not prediction — the halving is a real, scheduled supply event, but what price does around it is shaped by adoption, regulation, ETFs, and the wider economy, none of which follow a stopwatch. To model your own price scenarios around the cycle, pair this with the BTC Cycle Bottom Predictor.
Understanding the Halving
It is scheduled by blocks, not dates
The halving triggers at block 1,050,000, not on a calendar date. The countdown is an estimate from average block times — expect it to shift by days as the network's pace varies.
Supply issuance halves
The block reward drops from 3.125 to 1.5625 BTC. Fewer new coins enter circulation each day, tightening supply while the 21-million cap stays fixed — the core reason halvings draw so much attention.
Peaks lag the halving
Historically the cycle top came 12–18 months after the halving, not immediately. The progress bar helps you see where in that window the current cycle sits.
Returns are diminishing
Each cycle's gain has been smaller than the last: roughly 90× after 2012, 30× after 2016, 8× after 2020. A maturing, larger market cannot repeat early multiples.
Drawdowns are brutal
Every bull market has been followed by a 75–85% drawdown. The timeline's bottom figures are a reminder that the same volatility cuts both ways.
The pattern can break
Four data points is a small sample. ETFs, institutional flows, and macro conditions increasingly drive price. Treat the cycle as context, not a trading signal.
Frequently Asked Questions
When is the next Bitcoin halving?
The 5th Bitcoin halving is expected around April 2028, when the blockchain reaches block 1,050,000. The exact date is not fixed to a calendar — it depends on how fast blocks are mined, which varies with network difficulty. The countdown on this page uses an estimate based on the average 10-minute block time, so it will drift slightly as the date approaches.
What is the Bitcoin halving?
Every 210,000 blocks — roughly every four years — the reward miners receive for adding a block is cut in half. It started at 50 BTC per block in 2009, dropped to 25 in 2012, 12.5 in 2016, 6.25 in 2020, and 3.125 in 2024. The next halving will take it to 1.5625 BTC. This steadily slows the rate at which new bitcoin is created, enforcing the fixed 21-million supply cap.
Why does the halving matter for price?
The halving cuts the supply of new bitcoin issued to the market in half. If demand stays constant or grows while new supply shrinks, basic supply-and-demand pressure tends to push the price up. Historically, each halving has been followed by a major bull market that peaked 12–18 months later — though this is a pattern, not a guarantee, and each cycle has been less dramatic than the last.
How accurate is the countdown?
It is an estimate. Because halvings are triggered by block height rather than a date, the true moment depends on average block times over the next few years. Networks with faster-than-average blocks reach the halving sooner; slower blocks push it later. Treat the countdown as a close approximation that will sharpen as the block height nears 1,050,000.
What do the cycle timeline figures show?
For each past halving the timeline shows the approximate Bitcoin price at the halving, the subsequent cycle top (with the multiple gained), and the following cycle bottom (with the drawdown percentage). For example, after the 2020 halving Bitcoin rose from about $8,600 to a peak near $69,000 before falling to around $15,500. These are rounded, publicly reported figures for education.
Does past cycle behaviour predict future prices?
No. The four-year cycle is a historical pattern, and each cycle has shown diminishing returns compared with the last as the market matures. Many factors — regulation, macroeconomics, ETFs, and adoption — now influence price alongside the halving. Use the timeline to understand history, not to forecast exact outcomes, and never invest based on a pattern alone.
Is any data sent to a server?
No. The countdown runs entirely in your browser using your device clock, and the timeline is static data embedded in the page. Nothing is fetched from or sent to any server.