Bitcoin Halving Countdown
Track the countdown to the next Bitcoin halving event. Enter the current block height to see blocks remaining, estimated halving date, reward changes, and Bitcoin supply data — plus a complete history of all previous halvings.
What Is Bitcoin Halving and Why Does It Matter?
Bitcoin halving is one of the most important events in cryptocurrency. Every 210,000 blocks (approximately every four years), the number of new Bitcoin created per block is cut in half. This mechanism is hardcoded into Bitcoin's protocol and serves as the foundation of its monetary policy — a predictable, transparent, and unchangeable schedule of decreasing inflation.
When Satoshi Nakamoto launched Bitcoin in 2009, miners received 50 BTC for every block they validated. After the first halving in 2012, that dropped to 25 BTC. Then 12.5 in 2016, 6.25 in 2020, and 3.125 BTC after the most recent halving in April 2024. The next halving, expected in 2028, will reduce the reward to just 1.5625 BTC per block.
Halving Schedule
Halving Block = Halving Number × 210,000
Block Reward = 50 BTC ÷ 2^(halving number). Halvings continue until block reward rounds to 0 (~year 2140).
Historical Halving Data
Each halving has historically been followed by a significant bull run in Bitcoin's price, though the magnitude has decreased with each cycle:
- Halving 1 (Nov 2012): Block 210,000 — Reward: 50 → 25 BTC — Price: ~$12 — Peak after: ~$1,100 (91x)
- Halving 2 (Jul 2016): Block 420,000 — Reward: 25 → 12.5 BTC — Price: ~$650 — Peak after: ~$19,700 (30x)
- Halving 3 (May 2020): Block 630,000 — Reward: 12.5 → 6.25 BTC — Price: ~$8,600 — Peak after: ~$69,000 (8x)
- Halving 4 (Apr 2024): Block 840,000 — Reward: 6.25 → 3.125 BTC — Price: ~$64,000
- Halving 5 (est. 2028): Block 1,050,000 — Reward: 3.125 → 1.5625 BTC
The Supply Shock Theory
The economic logic behind halving's price impact is straightforward: if demand stays constant but the rate of new supply is cut in half, price should increase. Before each halving, miners sell a certain amount of BTC daily to cover operating costs. After halving, they have half as much new BTC to sell, reducing selling pressure on the market.
However, it is important to note that this is a simplification. Markets are forward-looking, and halving events are known years in advance. Some argue the halving is already "priced in" before it occurs. The historical price pattern may be influenced by many factors beyond just the supply reduction.
Example
Halving Countdown from Block 890,000
- Current block: 890,000
- Next halving block: 1,050,000
- Blocks remaining: 160,000
- At 10 min/block: ~1,111 days (~3 years)
- Estimated date: ~March 2029
- Current reward: 3.125 BTC
- Post-halving reward: 1.5625 BTC
Bitcoin Supply and Scarcity
Bitcoin has a hard cap of 21 million coins. As of 2026, approximately 19.8 million BTC have already been mined — about 94.3% of the total supply. Only 1.2 million BTC remain to be mined over the next ~114 years. This extreme scarcity, combined with decreasing issuance through halvings, is the foundation of Bitcoin's "digital gold" narrative.
The stock-to-flow (S2F) model, popularized by the pseudonymous analyst PlanB, attempts to quantify this scarcity by comparing existing supply (stock) to annual production (flow). Each halving doubles Bitcoin's stock-to-flow ratio, theoretically making it increasingly scarce relative to commodities like gold and silver. While the model has faced criticism for oversimplification, it illustrates why halvings are considered pivotal events in Bitcoin's economic design.
Impact on Miners
Halvings directly impact mining profitability. When the reward drops 50%, miners' revenue per block is immediately halved. Less efficient miners are forced offline, leading to a temporary drop in network hash rate and difficulty. Over time, the network rebalances as difficulty adjusts downward, making mining profitable again for remaining participants. This cycle has played out consistently after each halving event.