Cryptocurrency supply refers to how many units of a coin or token exist — but that single word hides three distinct numbers that tell very different stories. Understanding each one helps you read tokenomics honestly and avoid common misreadings of a project’s true size and inflation outlook.
The Three Supply Numbers
Every serious data aggregator — CoinMarketCap, CoinGecko, and others — displays three supply figures. They are not interchangeable.
| Term | What it counts |
|---|---|
| Circulating supply | Tokens that are publicly tradeable right now |
| Total supply | All tokens created so far, minus any permanently destroyed |
| Max supply | The hard ceiling on tokens that can ever exist |
Each number answers a different question. Circulating supply answers “how much is actually out there today?” Total supply answers “how much has been minted?” Max supply answers “how much will ever exist?”
Circulating Supply
Circulating supply is the number you use when calculating market cap. It counts only the tokens that are freely floating — held by ordinary wallets, trading on exchanges, or otherwise available for anyone to buy and sell.
Tokens that are locked away do not count. This includes coins held in vesting schedules (reserved for a founding team that cannot sell yet), coins staked inside a protocol and temporarily illiquid, and any tokens held in a project’s treasury that have not yet been distributed.
Why does this matter? Because price times circulating supply gives you market cap — the most commonly cited measure of a project’s market value. If you accidentally multiply price by total supply instead, you get a number that is almost certainly too large and misleading.
Locked tokens and why they matter
When a large tranche of locked tokens unlocks, it can increase circulating supply meaningfully overnight. If demand does not grow at the same pace, basic supply-and-demand logic suggests downward price pressure. This is why savvy readers check not just the current circulating supply but the unlock schedule — when will the next batch of locked tokens become tradeable?
Total Supply
Total supply counts every token that has been minted (created on-chain) minus every token that has been provably burned (sent to an address from which they can never be retrieved).
It is always greater than or equal to circulating supply, because it also includes:
- Team and investor allocations that are still locked
- Protocol-owned treasury tokens
- Any tokens held in smart contracts awaiting distribution
Total supply is useful when you want to understand how much of a project’s planned distribution has already happened. If circulating supply is 40% of total supply, about 60% of existing tokens are sitting somewhere, not yet freely tradeable.
Token burns reduce total supply. When a protocol permanently destroys tokens — sending them to a verifiably unspendable address — those coins vanish from total supply, and circulating supply falls too if the burned tokens were already in circulation.
Max Supply
Max supply is the hard cap: the absolute maximum number of tokens that the protocol’s rules allow to ever exist. Not all projects have one.
Bitcoin is the classic example of a hard-capped asset. Its protocol caps supply at 21 million BTC. No miner, developer, or vote can create a 21,000,001st bitcoin without changing the core rules of the network (which would require a hard fork).
Ethereum, by contrast, has no fixed max supply. Its issuance rate can be adjusted through governance and has changed several times. This does not make it inflationary by default — the burn mechanism introduced in 2021 has at times destroyed more ETH than was issued — but there is no protocol-enforced ceiling in the way Bitcoin has one.
When there is no max supply
Absence of a max supply is neither automatically good nor bad. What matters is the issuance rate and whether any offsetting destruction mechanism exists. A project with no cap but a low, predictable emission rate may be less inflationary in practice than one with a cap but aggressive near-term emissions.
A hard cap provides a credible commitment that no one can inflate supply arbitrarily. But a cap alone says nothing about how quickly tokens flow into circulation — a capped coin can still flood the market if most of its supply unlocks in the early years.
Fully Diluted Valuation (FDV)
Once you understand max supply, you can make sense of a related number: fully diluted valuation, or FDV. FDV is simply:
current price × max supply
It answers the question: “If every token that will ever exist were in circulation right now, at today’s price, what would the total market cap be?”
FDV is often much larger than market cap based on circulating supply. A large gap between the two signals that a lot of tokens are yet to enter circulation. Buyers at today’s price are, in a sense, pricing in future dilution — or hoping that demand will grow fast enough to absorb it.
The relationship between market cap and FDV is explored in depth in the guide on market cap vs FDV.
Putting It Together
Suppose you are looking at a hypothetical token:
- Circulating supply: 100 million
- Total supply: 400 million
- Max supply: 1 billion
- Current price: $1.00
Market cap = $100 million. FDV = $1 billion. Only 10% of the eventual supply is in circulation. This is not a warning sign on its own, but it tells you there is a long runway of potential dilution ahead unless demand grows substantially.
Checking the vesting schedule (covered in vesting and token unlocks) would tell you when those remaining 900 million tokens might enter the market.
Key Takeaways
- Circulating supply counts only freely tradeable tokens and is the correct input for calculating market cap.
- Total supply includes locked tokens and is reduced when tokens are burned.
- Max supply is the hard ceiling — not all projects have one, and its absence is not inherently a problem.
- Fully diluted valuation (FDV) uses max supply and shows what the market cap would be if all tokens existed today.
- A large gap between circulating supply and max supply means significant future dilution is possible — check unlock schedules.
- Supply numbers only make sense alongside demand context; a falling supply is good for price only if demand holds or grows.
Next up: Inflation and Emissions