Live countdown to the next block-reward halving, straight from the Bitcoin blockchain.
New bitcoin enters circulation as a reward to the miner who adds each block to the blockchain. The protocol cuts that reward in half every 210,000 blocks — roughly every four years — an event known as the halving. Rewards started at 50 BTC per block in 2009 and shrink toward zero over time, which is how Bitcoin enforces its fixed supply of about 21 million coins.
The countdown above is an estimate: it assumes the historical average of one block every ten minutes, while the real pace drifts slightly with changes in mining power. The block height itself is live from the network. While you wait, check the live Bitcoin price or the market's mood on the Fear & Greed Index.
Roughly every four years — precisely every 210,000 blocks — the reward miners receive for adding a new block is cut in half. This steadily slows the creation of new bitcoin until the supply tops out near 21 million coins.
At block 1,050,000 — about 93,631 blocks from now. At ~10 minutes per block that works out to around April 2028, though the exact date shifts with mining speed.
Miners currently earn 3.125 BTC per block. After the next halving it drops to 1.5625 BTC.
Each halving cuts the flow of brand-new bitcoin entering the market, tightening supply while demand is unchanged. Past halvings preceded major bull markets, but history is not a guarantee — treat the countdown as information, not investment advice.
Block data by mempool.space. Estimates assume ~10-minute blocks. Informational only — not financial advice.