What Is the Bitcoin Halving Table?

The Bitcoin halving table is the simple data sheet that fans, miners, and traders refresh every four years. It lists the exact block reward miners earn for sealing a new chunk of transactions, the date each cut kicked in, and roughly how much fresh BTC entered circulation as a result. At a glance, the numbers tell a tidy story: every 210,000 blocks, or about every four years, the reward drops in half, until the last satoshi is mined sometime around the year 2140.

Despite the spreadsheet feel, this little table is one of the most powerful economic events in crypto. It hard-codes Bitcoin's predictable, disinflationary supply into the protocol itself, which is why so many analysts frame the halving as the asset's built-in monetary thermometer. If you know how to read the schedule, you can quickly sense when the next supply shock is coming.

Bitcoin Halving History: Every Cycle at a Glance

Below is the canonical Bitcoin halving table, the same one that gets screenshot-shared on X and pinned in mining forums. Each row marks the moment the block reward was sliced in half and shows the immediate effect on new BTC issuance.

  • Genesis era (2009): 50 BTC per block. The first ~10,500 blocks were largely mined by Satoshi Nakamoto and early cypherpunks before the network even had a meaningful price.
  • First halving, November 28, 2012: Reward cut from 50 BTC to 25 BTC at block 210,000.
  • Second halving, July 9, 2016: Reward cut from 25 BTC to 12.5 BTC at block 420,000.
  • Third halving, May 11, 2020: Reward cut from 12.5 BTC to 6.25 BTC at block 630,000. This cycle coincided with the pandemic-era money-printing rally that pushed BTC into the mainstream.
  • Fourth halving, April 19-20, 2024: Reward cut from 6.25 BTC to 3.125 BTC at block 840,000.
  • Fifth halving, expected around 2028: Reward projected to drop to 1.5625 BTC at block 1,050,000.

Add up the cumulative supply issued at each halving and you'll spot another pattern: roughly half of all BTC that will ever exist was mined in the first four halving cycles combined, and the remaining ~10.5 million coins will trickle out over the next 116 years.

How the Halving Schedule Actually Works

Bitcoin's protocol doesn't use a calendar date; it uses block height. Every 210,000 blocks, the code automatically halves the coinbase reward miners collect alongside transaction fees. Because blocks are targeted at roughly 10 minutes apart, the rhythm averages about 1,460 days, or near four years, though real-world timing can drift by a few weeks depending on hash rate.

Why the math always rounds nicely

The starting reward is 50 BTC and the halving divisor is 2. That means each reward equals 50 divided by 2 to the power of n, where n is the halving number. So 50, then 25, then 12.5, then 6.25, then 3.125, then 1.5625, and so on. The numbers never round awkwardly because the protocol was designed this way from day one.

When will the final halving happen?

Once the reward hits zero, mathematically around the 33rd halving in the year 2140, miners will rely entirely on transaction fees. That is why long-term Bitcoiners watch the fee market so closely: it is the economic glue that has to hold the network together once the subsidy disappears.

Why Traders and Miners Watch the Table Like a Hawk

Every halving is, in effect, a scheduled supply shock. Daily new BTC issuance drops by 50% overnight, while demand can stay flat or rise. Simple economics says that should push the equilibrium price up, if demand holds steady. Historically, that "if" has been a big one.

The market's reaction often plays out months before the halving, not on the day itself. By the time the block reward actually halves, traders have usually priced in the event.

Still, the post-halving year tends to be interesting. Looking at the Bitcoin halving history:

  • The 2013 bull run peaked roughly a year after the first halving.
  • The 2017 parabolic move toward $20,000 came about 18 months after the second.
  • The 2021 highs near $69,000 arrived roughly a year after the third halving, though macro factors played a huge role.
  • The 2024-2025 cycle has so far followed a similar, if bumpier, arc after the fourth halving.

Miners feel the cut first. With revenue per block suddenly halved, older or less efficient rigs get squeezed out, hash rate drops, and the difficulty adjustment retargets every 2,016 blocks (about two weeks) to keep block times steady. Survival of the fittest, coded in math.

Key Takeaways

  • The Bitcoin halving table is a simple map of block rewards, halving dates, and the resulting impact on new supply.
  • Four halvings have happened so far, in 2012, 2016, 2020, and 2024, cutting the reward from 50 BTC down to 3.125 BTC.
  • Halvings occur every 210,000 blocks, not on a fixed calendar, so dates can drift by weeks.
  • The schedule turns Bitcoin into a predictably disinflationary asset, which is the foundation of its "digital gold" thesis.
  • Regardless of past price patterns, the next halving, expected around 2028, will be the loudest stress test yet for miners, fee markets, and a maturing BTC economy.