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Tools — Bitcoin Halving Countdown

Bitcoin Halving Countdown

Live countdown to Bitcoin's next block-reward halving, estimated from the current block height and the network's real average block time (mempool.space) — not a fixed 10-minute guess.

Next Halving In

—Days
—Hours
—Mins
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Current epoch progress—

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Results

Estimated Halving Date —
Current Block Height —
Halving Epoch —
Blocks Remaining —
Current Block Reward —
Reward After Halving —
Next Halving Block Height —

The estimate updates every 60 seconds from the live block height and the current difficulty period's average block time — it will drift slightly as block production speeds up or slows down, and lands exactly on the halving only once the target block is actually mined.

How the halving countdown is calculated

Bitcoin's block subsidy halves every 210,000 blocks — roughly every four years — starting from 50 BTC and currently down to a fraction of that. Since block times vary with network hash rate, this countdown doesn't assume a fixed 10-minute block: it reads the live block height and the average block time from the current difficulty-adjustment period (mempool.space), then projects forward the exact number of blocks remaining until the next multiple of 210,000. The estimated date will shift slightly as blocks are found faster or slower than that average — it becomes exact only once the halving block itself is mined.

Frequently Asked Questions

How is the countdown date calculated if nobody knows exactly when the next block will be found?
It's an estimate, not a guarantee. The calculator takes the number of blocks remaining until the next halving (the next multiple of 210,000) and multiplies it by the average time per block observed in the current difficulty-adjustment period. Because Bitcoin's difficulty retargets roughly every two weeks to keep blocks around 10 minutes, this average is usually close to reality, but the exact date can still shift by days in either direction.
How much does the block reward drop at each halving?
The subsidy is cut exactly in half every 210,000 blocks: 50 → 25 → 12.5 → 6.25 → 3.125 BTC, and so on. Transaction fees paid by users are separate from this subsidy and aren't affected by the halving.
When is the next Bitcoin halving expected?
Based on the current block height and average block time, the next halving is projected for around 2028 — see the live estimate above for the current projection, which updates automatically as new blocks are mined.

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