The Bitcoin Float
Most of the 21M can no longer be bought. The falling number below is the · what's actually still up for grabs.
Every square · 10,000 BTC
All 21 million bitcoin that will ever exist, as 2,100 squares. The orange ones are still realistically buyable · 607 squares. Everything else is already spoken for.
14.0M BTC is lost or held by hands that have not moved coins in years. The biggest region of the grid is effectively off the market forever.
Governments, ETFs and public companies vault another 0.0M BTC. These buyers absorb supply and almost never give it back.
The orange squares are the entire liquid market: 6.1M BTC still realistically buyable. This is what every buyer on Earth is competing for.
Count the orange ones. That scarcity is the whole page in one picture · and it shrinks a little most days.
Where it all lives
21 million bitcoin, accounted for · tap a row for detail.
The Float Over Time
Bitcoin still up for grabs, yet to be mined or bought · halving events marked
The Halving Runway
Demand is already 6.0× the new supply. And it doubles on a known schedule.
Next halving in 611 days. Daily new supply drops from 450 BTC → 225 BTC. If today's absorption pace holds, the ratio doubles overnight.
*Holding demand constant is a thought experiment, not a forecast · see Methodology.
Every block mined moves this clock. The machines doing the mining rent by the hour if you want your own shot at one.
The clock above is counting down the 6.1M BTC still realistically in play. Where does your stack sit inside it?
Your 0.21 BTC is about 0.0000035% of the Bitcoin still in active play. Scarce company.
Conceptual only · your coins are not held in the "in play" bucket in any custodial sense, and this never leaves your browser.
Methodology & Sources
Hero number = mined − lost − governments − ETFs − public-company treasuries − long-term-holder remainder. The LTH cohort (Glassnode · coins not moved 155+ days) is overlap-adjusted before subtraction: we back out the lost / gov / ETF / treasury portions (which are themselves LTH-classified by definition) so MSTR's coins aren't double-counted. The strictest "buyable on an exchange right now" framing (~exchange reserves) appears above the breakdown for context, not as the headline.
| Metric | Source | Last reviewed |
|---|---|---|
| Mined / circulating supply | mempool.space (block height) | live |
| Government holdings | bitcointreasuries.net | daily snapshot |
| Spot Bitcoin ETF AUM | bitcointreasuries.net (aggregate) | daily snapshot |
| Public-company treasuries | bitcointreasuries.net (aggregate) | daily snapshot |
| Provably lost (>7y dormant) | Glassnode (lth-supply-7y derived) | 2026-05-11 |
| Long-term holder baseline | Glassnode lth-supply | 2026-05-11 |
| Exchange reserves | CoinGlass /Balance | 2026-05-11 |
Last data refresh: Wed, 12 Aug 2026 00:15:29 GMT. Slow-moving cohorts (lost, LTH baseline, exchange reserves) are reviewed quarterly and updated in src/lib/float-snapshot.ts.
Data freshness · cite this page
Last updatedGalaxy Mind, "The Bitcoin Float," https://galaxymind.space/float, accessed August 12, 2026.
Tell someone how much bitcoin is actually left
Opens your share sheet (or X compose) with a pre-filled message. Recipients see a live preview card with today's float number. The snapshot auto-updates when the data moves.
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"It's going up forever, Laura."