Tools · Halving Countdown

The Bitcoin supply schedule,
from genesis to 2140.

How much Bitcoin has been mined. How much remains. When the next halving hits. The complete issuance curve from the genesis blockgenesis blockThe very first batch of Bitcoin transactions, created by Bitcoin's anonymous inventor Satoshi Nakamoto on January 3, 2009. Every Bitcoin transaction since then traces back to it.Full definition in 2009 to the last satoshi in approximately 2140.

Next halving estimate
···

···

Current block rewardblock rewardThe brand-new Bitcoin a miner earns for adding the next batch of confirmed transactions to the public ledger. The reward is how new Bitcoin enters circulation, and it gets cut in half every four years.: 3.125 BTCBitcoin (BTC)The ticker symbol for Bitcoin, used on exchanges and in price quotes.Full definition · Est. from the latest chain tip in this site's data snapshot at the 10-minute protocol block time

Supply curve (2009 to 2140)
Mined so far
···
··· of 21M
Remaining
···
Estimated lost ×DON'T TRUST, VERIFYClaim: Approximately 3-4 million BTC estimated lost based on HODL wave analysis.Verify at: Glassnode HODL Waves ↗ · Chainalysis lost-coin research ↗Estimates vary. Treat as directional.
~4M
Halvings completed
4 of 32
Halving history & schedule ×DON'T TRUST, VERIFYClaim: Halving dates and block rewards per Bitcoin protocol.Verify at: Bitcoin Wiki: Controlled Supply ↗ · bitcoin.org FAQ ↗Halving every 210,000 blocks hardcoded in consensus rules.
Halving Block Date Reward (BTC)
What this tool assumes
  • Next halving block is 1,050,000 (estimated April 2028).
  • Block time averages 10 minutes but varies; estimated date is approximate.
  • Block reward after the 2028 halving: 1.5625 BTC per block.

Related

→ Bitcoin for Beginners → How It Works → Proof of Work

Supply figures derived from the block-reward schedule assuming 10-minute average blocks. Actual block times drift.

HOW THIS IS CALCULATED

This tool runs entirely in your browser — no data is sent to any server. All formulas use standard financial math. Verify the methodology or inspect the source code in your browser's dev tools.