The Last Bitcoin

21M Countdown

Bitcoin never mints a literal final whole coin. The protocol keeps halving until the final 1 sat mining reward lands in block --, commonly estimated to arrive around 2140.

Expected Era ~2140
Final Mining Reward 1 sat
Scheduled Supply --

Projected time remaining

Countdown to the last block with mining rewards

The target is fixed at the final reward block and the estimate assumes a constant 10-minute block interval.

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YEARS
---
DAYS
--
HOURS
--
MINS
--
SECS

Projection is anchored to the latest mined block timestamp and advances with a fixed 10-minute cadence.

Projection Model

Fixed 10-minute blocks 1 block every 600,000 ms
Current Block Loading...
Final Reward Block --
Blocks Remaining --
Current Mining Reward --
BTC Left to Mine --
Estimated Final Reward Date --

Issuance progress

--

-- / -- issued through mining rewards

Bitcoin’s 21M cap is asymptotic. Protocol rounding leaves -- unissued.