Bitcoin Halving Countdown
Days until next halving · Live block height · Progress
What is the Bitcoin Halving Countdown?
The Halving Countdown projects the next Bitcoin halving from the live block height. Every 210,000 blocks (~4 years) the block reward halves — the core of Bitcoin's supply discipline. The current reward is 3.125 BTC, dropping to 1.5625 next.
How do I use the Bitcoin Halving Countdown?
All three past halvings preceded cycle peaks by 12–18 months, which is why the halving narrative is partly priced in. The rational frame: treat it as a slow supply-side variable, weighed against demand-side forces like ETFs — not a script that must repeat.
What should I watch out for?
The countdown assumes average block times, so the actual date drifts by days with hashrate; and as existing supply dominates, each halving's marginal impact on new issuance shrinks.
How the Bitcoin Halving Countdown works
The Bitcoin Halving Countdown shows how many days remain until the next halving, with live block height, remaining blocks, current and post-halving block reward, and cycle progress. It is for anyone following Bitcoin’s four-year issuance schedule.
What you enter
- None; it uses live block height from the site’s on-chain feed and the BTC price ticker.
What it shows
- Days until the next halving (with its number) and the estimated date
- Halving cycle progress (%)
- Current block height and remaining blocks
- Current block reward and the reward after the halving
- Network hashrate (EH/s, when available) and live BTC price
How to use it
- Read the large day counter and the estimated date.
- Check the cycle progress bar.
- Note the current block height and remaining blocks.
- Compare the current block reward with the post-halving reward.
- Come back later; the estimate updates as blocks are mined.
Formula
Next halving height = next multiple of 210,000. Remaining blocks = next height − current height. Days left = floor(remaining blocks × 10 ÷ 1,440). Progress = (210,000 − remaining blocks) ÷ 210,000. Next reward = current reward ÷ 2. Halving number = next halving height ÷ 210,000.
Worked example
With 150,000 blocks left before height 1,050,000 (halving #5): days = floor(150,000 × 10 ÷ 1,440) = floor(1,041.7) = 1,041. Progress = 60,000 ÷ 210,000 ≈ 28.6%. The reward drops from 3.125 to 1.5625 BTC.
How to read the result
- The date assumes 10-minute blocks; if blocks come faster, the halving arrives earlier.
- Each halving cuts new BTC issued per block by 50%.
- Progress near 100% means the next halving is close in block terms.
Limits and cautions
- Real block times vary, so the date can move by days or weeks.
- The halving’s effect on price is debated and cannot be predicted from this page.
- The live price is shown for context only.
Common questions
When is the next Bitcoin halving?
At the next block height divisible by 210,000. The page estimates the date from remaining blocks at 10 minutes per block.
How often does the Bitcoin halving happen?
Every 210,000 blocks, roughly every four years at the 10-minute target block time.
What happens to the block reward at the halving?
The new-BTC subsidy per block is cut in half, for example from 3.125 BTC to 1.5625 BTC. Transaction fees are not affected.
🌡 Latest BTC cycle reading: 43/100 · Neutral Zone (as of 2026-10-19). BTC Cycle Thermometer: Bitcoin top or bottom?
Free to use with no signup. Read Bitcoin valuation, cycle, backtests and alerts, and calculate fees, slippage, funding and post-rebate cost before trading.
