Bitcoin Halving Countdown — Real-time Blocks Remaining & Estimated Date
What is the Bitcoin Halving?
Every 210,000 blocks — roughly every four years — the Bitcoin network undergoes a halving: the block reward paid to miners is cut in half. This is a core part of Bitcoin's monetary policy, hard-coded into the protocol by its creator Satoshi Nakamoto.
Bitcoin's total supply is capped at 21 million BTC. The halving slows the rate at which new coins enter circulation, making Bitcoin progressively more scarce over time. The block reward started at 50 BTC in 2009 and is now 3.125 BTC after the April 2024 halving.
A total of 32 halvings will occur. After the final halving (estimated around 2140), no new BTC will be minted and miners will rely entirely on transaction fees for revenue.
Bitcoin Halving History
| Event | Date | Block | Reward | Annual Inflation |
|---|---|---|---|---|
| Genesis | Jan 2009 | 0 | 50 BTC | ~100% |
| 1st Halving | Nov 2012 | 210,000 | 25 BTC | ~12% |
| 2nd Halving | Jul 2016 | 420,000 | 12.5 BTC | ~4% |
| 3rd Halving | May 2020 | 630,000 | 6.25 BTC | ~1.8% |
| 4th Halving | Apr 2024 | 840,000 | 3.125 BTC | ~0.9% |
| 5th Halving ✦ | ~2028 | 1,050,000 | 1.5625 BTC | ~0.4% |
✦ Estimated. ※ Annual inflation is approximate based on new issuance relative to circulating supply.
Frequently Asked Questions
What is the Bitcoin halving?
The Bitcoin halving is an event that occurs every 210,000 blocks (approximately every 4 years) where the block reward given to miners is cut in half. This mechanism, designed by Bitcoin's creator Satoshi Nakamoto, limits Bitcoin's total supply to 21 million BTC.
When is the next Bitcoin halving?
The 4th halving occurred on April 20, 2024 at block 840,000. The 5th halving is expected around 2028 at block 1,050,000. The exact date depends on the network's hash rate, since blocks are targeted at 10 minutes each.
What will the block reward be after the next halving?
After the 4th halving, the current block reward is 3.125 BTC. After the 5th halving (around 2028), it will drop to 1.5625 BTC. There will be a total of 32 halvings, with the last BTC mined around 2140.
How does the halving affect Bitcoin's supply?
Each halving cuts the annual new supply in half, reducing Bitcoin's inflation rate. After the 2024 halving, approximately 82,125 BTC are issued per year (down from ~164,250). This built-in scarcity is a core part of Bitcoin's design.
Can we predict the exact halving date?
Bitcoin's halving is determined by block count, not calendar time. Every ~2 weeks the network adjusts mining difficulty. If blocks come faster than 10 min average, the halving arrives sooner; slower and it's pushed back. Dates on this page are estimates based on a 10 min/block average.
This page provides factual, neutral information about the Bitcoin halving mechanism. It does not constitute investment advice. Block data is sourced via the mempool.space API. Estimated dates are based on a 10 min/block average and may change as network hash rate fluctuates. All investment decisions are made at your own risk.