Bitcoin Halving Countdown
Count down to Bitcoin block 1,050,000, the 5th halving. The page reads the current block height from a public block explorer in your browser and projects the date from the blocks left at an average block time you choose (10 minutes by default).
The next Bitcoin halving is the 5th, at block 1,050,000, when the block subsidy falls from 3.125 BTC to 1.5625 BTC.
Use the Bitcoin Halving Countdown
Next Halving — Block 1,050,000
5th halving · reward drops from 3.125 BTC to 1.5625 BTC
Estimator inputs
Estimated Daily Issuance & Subsidy Reduction
3.125 → 1.5625 BTCCalculated from 144.0 estimated blocks/day using your selected average interval. This is a subsidy issuance estimate, not a price or miner-revenue forecast.
Halving History
| # | Block | Date (UTC) | Reward |
|---|---|---|---|
| 1 | 210,000 | Nov 28, 2012 | 50 → 25 BTC |
| 2 | 420,000 | Jul 9, 2016 | 25 → 12.5 BTC |
| 3 | 630,000 | May 11, 2020 | 12.5 → 6.25 BTC |
| 4 | 840,000 | Apr 20, 2024 | 6.25 → 3.125 BTC |
| 5 | 1,050,000 | ≈ Apr 2028 (estimate) | 3.125 → 1.5625 BTC |
Halvings occur every 210,000 blocks (about 4 years). The 5th row uses the estimate above.
Bitcoin issuance schedule
Subsidy per 210,000-block epoch and the supply issued by its last block (schedule totals; a few unspendable coins are ignored). Years after 2024 are approximate.
| Epoch blocks | Subsidy | New BTC | Supply at end |
|---|---|---|---|
| 0–209,999 2009–2012 |
50 | 10,500,000 | 10,500,000 |
| 210,000–419,999 2012–2016 |
25 | 5,250,000 | 15,750,000 |
| 420,000–629,999 2016–2020 |
12.5 | 2,625,000 | 18,375,000 |
| 630,000–839,999 2020–2024 |
6.25 | 1,312,500 | 19,687,500 |
| 840,000–1,049,999 2024–~2028 |
3.125 | 656,250 | 20,343,750 |
| 1,050,000–1,259,999 ~2028–2032 |
1.5625 | 328,125 | 20,671,875 |
| 1,260,000–1,469,999 ~2032–2036 |
0.78125 | 164,062.5 | 20,835,937.5 |
| 1,470,000–1,679,999 ~2036–2040 |
0.390625 | 82,031.25 | 20,917,968.75 |
The subsidy keeps halving until it rounds to 0 satoshi at block 6,930,000, around 2140. Total issuance approaches, but never reaches, 21 million BTC.
Quick answer
The next Bitcoin halving is the 5th, at block 1,050,000, when the block subsidy falls from 3.125 BTC to 1.5625 BTC. Halvings happen every 210,000 blocks; block 840,000 was mined on April 20, 2024, so at a 10-minute average the 5th halving lands around April 2028, but the exact date depends on actual block times.
Examples
| Halving | Block height | Reward after |
|---|---|---|
| 1st (Nov 28, 2012) | 210,000 | 25 BTC |
| 2nd (Jul 9, 2016) | 420,000 | 12.5 BTC |
| 3rd (May 11, 2020) | 630,000 | 6.25 BTC |
| 4th (Apr 20, 2024) | 840,000 | 3.125 BTC |
| 5th (est. 2028) | 1,050,000 | 1.5625 BTC |
The countdown above loads the current block height and updates the estimated halving date.
Summary
Bitcoin's block subsidy halves every 210,000 blocks, so the next halving is set by block height, not by a calendar date. This countdown fetches the latest block height and its timestamp from a public block explorer (mempool.space, with Blockstream as a fallback) directly in your browser, counts the blocks left to 1,050,000 and multiplies them by an average block time to estimate the date. You can switch to the average block time actually observed since the April 2024 halving, or enter a height you verified yourself. The tables list every past halving and the full issuance schedule, with the supply reached after each epoch.
How it works
- On load the page requests the latest blocks from mempool.space (Blockstream if that fails) and takes the tip height and its timestamp. Nothing else is sent.
- Blocks remaining = 1,050,000 − current height.
- Estimated halving time = time of the tip block + blocks remaining × average minutes per block (10 by default, the protocol target).
- The epoch average is (tip time − time of block 840,000) ÷ (tip height − 840,000); use it to see how the date moves if the recent pace continues.
- If the explorers cannot be reached, the countdown falls back to an estimate from block 840,000 at 10 minutes per block, and you can type a height you checked yourself.
- The tables show every past halving and the issuance and cumulative supply for each 210,000-block epoch.
Use cases
- See how many blocks and days remain until the next Bitcoin halving.
- Compare the 10-minute estimate with the pace observed since the last halving.
- Look up past halving dates, block heights and rewards.
- See how much new BTC each epoch adds and the supply after each halving.
- Estimate daily issuance before and after the 5th halving.
- Study the fixed subsidy schedule; this is not a price or mining-profit forecast.