Bitcoin Supply & Scarcity
Track Bitcoin's circulating supply, estimated lost coins, mining schedule, and see your holdings as a percentage of the total 21 million hard cap.
Bitcoin Supply
Your BTC Holdings
Enter your BTC to see what percentage of total supply you own.
Estimated Lost Bitcoin
~3.7M BTC
Estimated permanently lost
~1.1M BTC
Satoshi's unmoved coins
~16.4M
Effective circulating supply
Bitcoin Supply Schedule (2009–2140)
Next Halving
Block 1,050,000
Target block height
90,699
Blocks remaining
Apr 2028
Estimated date
Bitcoin Supply Calculator
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01
View Live Supply
Auto-loads the current circulating supply, percentage mined, and remaining BTC from the mempool.space API.
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02
Explore the Supply Curve
The chart shows how Bitcoin's issuance tapers towards 21 million, with halvings every ~4 years cutting new supply by 50%.
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03
Check Your Stack %
Enter your BTC holdings to see what percentage of the total supply you own. Even 0.01 BTC makes you a top percentile holder.
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04
Understand Scarcity
With ~3–4M BTC lost forever, effective supply is closer to 17–18M. BTC is scarcer than gold by stock-to-flow ratio.
Frequently Asked Questions
Everything you need to know about Bitcoin supply and mining
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Read Article
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Disclaimer
Lost BTC estimates are approximations from industry research (Chainalysis, Glassnode). Actual lost supply may vary. Supply schedule math is deterministic from Bitcoin's code. This is not financial advice.