Bitcoin halving countdown.
A real-time countdown to the next Bitcoin halving event. The counter below tracks the current block height, calculates blocks remaining until block 1,050,000, and estimates the halving date based on the 10 minute target block time. Data refreshes every minute.
What is the Bitcoin halving?
Bitcoin’s monetary policy is unlike any traditional currency. Instead of being managed by a central bank that can expand the money supply at will, Bitcoin was designed with a fixed supply cap of 21 million coins and a predetermined issuance schedule. The halving is the mechanism that enforces that schedule.
Every time a miner successfully adds a new block to the Bitcoin blockchain, they receive a block reward in newly minted bitcoin. When Bitcoin launched in January 2009, that reward was 50 bitcoin per block. Roughly every four years, or more precisely every 210,000 blocks, that reward is automatically cut in half. This event is called the halving, and it is hardcoded into the Bitcoin protocol itself. No developer, miner, or institution can override it.
The halving was written into the original protocol by Satoshi Nakamoto, the pseudonymous creator of Bitcoin. The economic logic is straightforward. By reducing the rate at which new bitcoin enters circulation on a predictable schedule, Bitcoin becomes progressively scarcer over time. This is the opposite of how fiat currency works, where supply typically grows faster than the real economy.
Bitcoin has had four halvings so far. The reward started at 50 BTC per block, dropped to 25 BTC in November 2012, 12.5 BTC in July 2016, 6.25 BTC in May 2020, and 3.125 BTC in April 2024. After the next halving, projected for early 2028, the reward will drop to 1.5625 BTC per block.
The halving schedule continues until around the year 2140, when the block reward reaches a fraction of a satoshi and effectively rounds down to zero. At that point, all 21 million bitcoins will have been mined, and the network will rely entirely on transaction fees to pay miners for the work of securing the network.
Past Bitcoin halvings
A complete history of every Bitcoin halving to date, including the price at the time of the halving and the cycle peak that followed. Dollar prices are rounded to the nearest meaningful figure.
| Halving | Date | Block height | Price before | Peak after | Time to peak |
|---|---|---|---|---|---|
| 1st | Nov 28, 2012 | 210,000 | ~ $12 | ~ $1,150 | ~ 12 months |
| 2nd | Jul 9, 2016 | 420,000 | ~ $650 | ~ $20,000 | ~ 17 months |
| 3rd | May 11, 2020 | 630,000 | ~ $8,600 | ~ $69,000 | ~ 18 months |
| 4th | Apr 19, 2024 | 840,000 | ~ $63,800 | TBD | 12 to 18 months est. |
| 5th | April 2028 est. | 1,050,000 | TBD | TBD | TBD |
How halvings affect Bitcoin price
Historically, Bitcoin halvings have coincided with some of the largest bull markets in the asset’s history, though the causal relationship is subject to debate. The mechanics can be understood through the lens of supply and demand. If demand for Bitcoin remains stable or grows, and the new supply flowing into the market is cut in half, basic economics suggests upward pressure on price over time.
The most popular model that formalizes this relationship is called stock to flow, developed by an analyst known as PlanB. Stock to flow measures the ratio between the existing supply of an asset (stock) and the rate at which new supply is produced (flow). Gold has a high stock to flow ratio because the amount of existing gold dwarfs annual mining production. Each Bitcoin halving doubles Bitcoin’s stock to flow ratio, moving it closer to gold’s level and then beyond.
Looking at history, the pattern is striking. After the first halving in November 2012, Bitcoin rose from around 12 dollars to more than 1,100 dollars within 12 months. After the second halving in July 2016, Bitcoin rose from around 650 dollars to nearly 20,000 dollars in December 2017, roughly 17 months later. After the third halving in May 2020, Bitcoin rose from around 8,600 dollars to approximately 69,000 dollars by November 2021, about 18 months later.
Several theories try to explain why peaks tend to occur 12 to 18 months after a halving rather than immediately. One is that the supply shock takes time to propagate through the market. Another is that bull markets in Bitcoin are as much about narrative and speculation as about fundamentals, and the halving acts as a psychological anchor that draws attention and capital into the market over time. Sophisticated market participants begin positioning well before the event, and retail participants tend to arrive after prices have already started moving.
It is worth being skeptical of any model, including stock to flow, that treats past performance as a guarantee of future results. With only four halvings on record, the statistical sample is small. Each cycle has occurred under very different macroeconomic conditions: zero interest rate policy during the 2020 halving, a rate hiking cycle during 2022 and 2023, and the emergence of spot Bitcoin ETFs in 2024. The presence of institutional capital with different time horizons may change the mechanics of future cycles.
Bitcoin’s growing market capitalization also matters. The first halving lifted a market worth less than a billion dollars. By the fourth halving, Bitcoin was already a trillion dollar asset. A doubling of price requires far more capital inflow than it used to, which may dampen the magnitude of future post halving rallies even if the direction remains similar. The most honest conclusion is that halvings historically correlate with strong returns within a window of one to two years afterward, but the correlation is not causation, and the size of the effect depends on factors that have nothing to do with the halving itself.
What happens to Bitcoin miners
For miners, the halving is the single most disruptive event in the Bitcoin economic calendar. Overnight, their revenue per block is cut in half. Electricity bills and hardware costs are not. The result is a squeeze that can instantly turn a profitable operation into an unprofitable one, especially for miners running older generation equipment or operating in regions with high electricity rates.
The network responds to this pressure through the difficulty adjustment mechanism. Every 2,016 blocks, or roughly every two weeks, the Bitcoin protocol recalibrates how hard it is to find a valid block based on the total hash rate active on the network. If unprofitable miners shut down after a halving, total hash rate drops, difficulty falls, and the remaining miners find blocks more quickly and profitably. This feedback loop tends to rebalance the market within a few adjustment periods, but the interim can be painful.
The weeks and months immediately following a halving are often called miner capitulation, a period during which weaker operations shut down equipment, sell accumulated bitcoin to cover costs, or sell themselves to larger competitors. Each halving cycle has produced a wave of consolidation in the mining industry. Publicly traded miners with access to capital markets tend to emerge stronger on the other side, while smaller operators exit or are absorbed.
Over the long run, the industry is gradually shifting its revenue mix from block subsidy toward transaction fees. Each halving pushes that transition further along. Fees already account for a meaningful share of total miner revenue during periods of high network activity, and that share will only grow as the block subsidy continues to shrink over the coming decades.
The final Bitcoin halving
Bitcoin’s supply schedule includes a finite number of halvings. The block reward started at 50 BTC, and each halving cuts it in half, so after enough halvings the reward rounds down to zero in Bitcoin’s satoshi unit. The last halving is projected to occur around the year 2140, after which no new bitcoin will be issued.
After 32 halvings, total supply reaches 20.99999 million bitcoin, which is treated as 21 million for all practical purposes. Once issuance ends, miners will no longer receive a block subsidy for finding blocks. Network security will then depend entirely on transaction fees paid by users who want their transactions included in blocks.
This transition is one of the open questions in Bitcoin’s long-term design. Supporters argue that by the time block subsidy approaches zero, Bitcoin transaction volume and Layer 2 settlement flows will be large enough to support a healthy fee market. Critics argue that transaction fees alone may not be sufficient to incentivize the enormous hash rate needed to secure a multi-trillion dollar asset. The answer, realistically, will emerge over decades as the network approaches that transition point.
How to prepare for the Bitcoin halving
A few practical considerations for long-term holders who want to think through a halving cycle without falling into common behavioral traps.
- Consider dollar-cost averaging before the event. Our DCA calculator can simulate how a steady buying strategy would have performed across prior halving cycles.
- Do not try to time the exact peak. History suggests peaks occur 12 to 18 months after a halving, but the window is wide and the exact top is only visible in hindsight.
- Plan for tax before you need to. Capital gains can be significant after a strong cycle. The tax calculator gives a rough estimate before you close a position.
- Take security seriously for long-term holdings. Hardware wallets and clean cold-storage practices matter more as positions grow in value.
- Avoid emotional entries. Chasing vertical moves late in a cycle has historically been the worst entry point, regardless of how attractive the headlines feel at the time.
Related tools
Other calculators that pair well with the halving countdown.
DCA Calculator
Simulate dollar-cost averaging strategies against historical BTC data across prior halving cycles.
ToolMining Calculator
Estimate mining profitability at the current block reward and see how it shifts after the next halving.
ToolProfit and Loss Calculator
Calculate realized profit, return on investment, and exchange fees on any BTC position.
Frequently asked questions
When is the next Bitcoin halving exactly?
The next Bitcoin halving is projected to occur in early 2028 at block height 1,050,000. The exact date depends on how quickly miners produce blocks between now and then. Bitcoin targets an average block time of 10 minutes, but variation in hash rate causes real block times to deviate slightly from that target, which is why a precise date cannot be known until very close to the event. The countdown above uses the current block height and the 10 minute target to produce a real-time estimate.
What is the current Bitcoin block reward?
As of the fourth halving in April 2024, the Bitcoin block reward is 3.125 BTC per block. This is the amount of newly minted bitcoin that a miner receives for successfully adding a new block to the blockchain, in addition to any transaction fees paid by users whose transactions are included in that block. At the next halving, the block reward will drop to 1.5625 BTC.
How many Bitcoin halvings will there be in total?
Bitcoin has a total of 32 halvings built into its protocol. After the 32nd halving, the block reward will have shrunk to a fraction of a satoshi and will round down to zero in Bitcoin’s native units. By that point, all 21 million bitcoins will have been mined. This final halving is projected to occur around the year 2140.
Does the halving guarantee a price increase?
No. Historically, Bitcoin has experienced significant price appreciation in the 12 to 18 months following each of its first three halvings, but past performance does not guarantee future results. Each cycle has taken place under different macroeconomic conditions, and the market has matured significantly since 2012. A halving reduces the rate at which new supply enters the market, which is a bullish fundamental factor over time, but price in any given month or year depends on demand, liquidity, regulation, and broader market sentiment.
What happens after all Bitcoin is mined?
Once all 21 million bitcoins are in circulation, no new coins will be created. Miners will continue to secure the network, but instead of receiving a block subsidy, they will be paid entirely through transaction fees included in the blocks they produce. Whether fee revenue alone will be sufficient to incentivize the level of hash rate needed to secure the network is one of the open long-term questions in Bitcoin design. The transition will unfold gradually over the next century.
How is the halving date calculated?
The date is calculated from the current block height and the target block time. The next halving occurs at block 1,050,000. If the current block height is 840,000, then 210,000 blocks remain. At a target of one block every 10 minutes, 210,000 blocks works out to about 1,458 days, or just under four years. The real time is always slightly different from this estimate because hash rate changes affect actual block production speed, and the difficulty adjustment only partially corrects for this every 2,016 blocks.
Can the halving schedule be changed?
In principle, anything in Bitcoin can be changed through a protocol upgrade, but a change to the halving schedule would require consensus from the overwhelming majority of miners, node operators, exchanges, wallets, and users. The fixed 21 million supply cap and the halving schedule that enforces it are widely regarded as Bitcoin’s defining features. Any serious proposal to change them would almost certainly be rejected by the ecosystem and would likely split the network.
Why does Bitcoin have halvings?
The halving is the mechanism by which Bitcoin enforces its fixed supply of 21 million coins on a predictable schedule. Cutting the block reward in half every 210,000 blocks produces a geometric series whose sum converges to 21 million. Satoshi Nakamoto chose this design because it creates predictable, transparent monetary policy that no central authority can alter. It also mimics the economic properties of scarce natural resources like gold, where new supply becomes progressively harder to extract over time.
Related reading
Further coverage on Bitcoin from our editorial desks. See our Bitcoin news archive, market analysis, and price predictions sections for ongoing coverage of the current halving cycle, mining difficulty adjustments, and long-form research on the macro drivers behind Bitcoin price action. For daily summaries of what moved the market, subscribe to our free newsletter.
