Count down to the next Bitcoin halving with current block height, estimated halving date, current and next block reward, and total supply.
All calculations happen locally in your browser. Nothing leaves your device.
Estimate assumes ~10 min per block. The actual date varies with network activity.
| Halving | Block | Date (approx) | Reward after |
|---|---|---|---|
| 1st | 210,000 | Nov 2012 | 25 → 12.5 BTC |
| 2nd | 420,000 | Nov 2016 | 12.5 → 6.25 BTC |
| 3rd | 840,000 | Apr 2024 | 6.25 → 3.125 BTC |
| 4th (next) | 1,050,000 | — | 3.125 → 1.5625 BTC |
A Bitcoin halving is a scheduled event in which the block reward paid to miners is cut in half. It has happened three times so far — in November 2012, November 2016 and April 2024 — and the next one is expected around 2028, when the reward drops from 3.125 to 1.5625 BTC. It is one of the core mechanisms that makes Bitcoin a predictable, deflationary monetary asset.
A Bitcoin halving is a scheduled event that cuts the block reward paid to miners in half. It has occurred three times so far — in November 2012, November 2016 and April 2024 — and each halving happens after 210,000 new blocks are mined, roughly every four years.
This tool anchors on the 3rd halving (block 840,000 on 2024-04-19) and assumes one block every 10 minutes. The next halving is at block 1,050,000, so it counts down from the estimated date. Because real block times fluctuate, the actual halving may arrive days or weeks earlier or later.
210,000 blocks at the average 10-minute pace take about four years. This interval means the 21 million supply cap is approached over roughly 200 years, and it makes the reduction in new issuance a predictable, scheduled economic event rather than an ad-hoc decision.
Not directly — the protocol only changes the reward. Historically, halvings have sharply cut miners' revenue and have often been followed by periods of strong price appreciation, but the relationship is not mechanical and past performance does not guarantee future results.
No. Everything is computed locally from fixed baseline data (the 3rd halving at block 840,000) and your device clock, so no API request is ever made and nothing leaves your browser.
If you just finished with Bitcoin Halving Countdown, the natural next steps are Crypto Unit Converter, Inflation Calculator, Staking vs Holding Calculator, or browse every tool in Crypto Tools.