The block subsidy halves every 210,000 blocks until it eventually rounds down to zero.
Bitcoin supply clock
Bitcoin halving countdown
The Bitcoin halving happens every 210,000 blocks. It cuts the new bitcoin subsidy paid to miners in half. The countdown below estimates the next halving from the current block height.
Current blockLoading
Next halving block--
Estimated time--
What is the Bitcoin halving?
Each Bitcoin block can include a special transaction that creates new bitcoin. This new-coin reward is called the block subsidy. When Bitcoin launched, the subsidy was 50 BTC per block. After each halving, the subsidy is cut in half.
The halving does not happen on a calendar date. It happens at a block height. Because Bitcoin aims for blocks roughly every ten minutes, people can estimate the date, but the exact time depends on how quickly blocks are found.
Why miners care
Miners also receive transaction fees from the block they mine.
The halving changes the reward, not the hash target directly. Difficulty adjusts through its own cycle.
Current estimate
Blocks left
-- blocks remain until the next 210,000-block boundary.
Subsidy after halving
-- BTC per block, before transaction fees.
Waiting for network data.
What the halving does not mean
- It does not guarantee a Bitcoin price increase.
- It does not make a normal PC competitive with ASIC miners.
- It does not stop mining rewards, because transaction fees can still be included.
- It does not change the basic proof-of-work process: miners still search for a low-enough hash.