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Fixed Supply
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Bitcoin Supply Clock.
How many bitcoin exist right now, and how many are still to come? The numbers update from the current block.
Loading…bitcoin mined so far
- Share of the cap mined
- …
- Still to be mined
- …
- Current block
- …
- Reward per block
- …
- Blocks to the next halving
- …
- New bitcoin per day (about)
- …
Based on block height alone. It does not subtract coins that are lost or unspendable.
How the supply is counted
New bitcoin come into existence only as the reward for mining a block. The reward started at 50 bitcoin and is cut in half every 210,000 blocks, roughly every four years. Add up every reward paid so far and you have the total supply, which is what this page does using the current block height.
Why it matters
Bitcoin's supply schedule is public, predictable and written into the software every node runs. Anyone can check how many coins exist without asking a company or a central bank, which is a large part of why people call it sound money. Our guides on why bitcoin is capped and the next halving go deeper.
This is information, not advice: it makes no prediction about price.
Questions
Good to know
How many bitcoin exist right now?
The counter above shows it live. It is the sum of every block reward paid so far: 50 per block at first, halving every 210,000 blocks. Some of those coins are lost forever, so the number that can actually be spent is lower.
Will there ever be more than 21 million bitcoin?
Not under the current rules. The reward halves every 210,000 blocks until it rounds down to zero, which puts the total just under 21 million. Changing that would need nearly every node operator, miner and user to agree, which is why the cap is treated as fixed.
When will the last bitcoin be mined?
Around the year 2140. The rewards shrink so quickly that more than 99 percent of all bitcoin will be mined well before then.
Why is the supply number not exactly 21 million at the end?
Rewards are counted in whole satoshis, the smallest unit, and each halving rounds down. The final total is a few hundred satoshis short of a round 21,000,000.
Does this tool store anything?
No. It reads the current block height from a public source and does the arithmetic in your browser.
Wear it
Tees for the supply nerd
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Halving 2028
Unisex tee · XS–3XL
$39.99
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Sound Money
Unisex tee · XS–3XL
$39.99