Three numbers that sound alike
Crypto price pages usually show three supply figures next to each coin. They look similar, but they answer different questions, and mixing them up is a common source of confusion when comparing coins or reading market data.
Circulating supply
Circulating supply is the number of coins considered to be available in the market and held by the public. It is the figure most sites use to calculate market capitalization, which is simply the price of one coin multiplied by this number.
The word “considered” matters. No one can count the coins that are truly liquid, so circulating supply is an estimate built from rules each data provider chooses. Typical exclusions are coins locked in a vesting schedule, coins held in wallets known to belong to the project team or a treasury, and coins held in escrow or staking contracts that cannot yet be sold. Where a provider draws that line varies, and projects often supply their own figures for providers to use.
Total supply
Total supply is the number of coins that currently exist, minus any that have been verifiably destroyed. It includes coins that are locked or not yet released, so it is normally equal to or larger than circulating supply.
For a token, total supply might include a large allocation that unlocks over several years. Coins sent to an address nobody can spend from, often called a burn address, are usually subtracted. How that works in practice is discussed in the context of token burns, and the gradual release of locked coins is covered under token unlocks.
Max supply
Max supply is the upper limit on the number of coins that can ever exist, if the project has one. Bitcoin’s is the best-known example: about 21 million, set by the issuance schedule. Many tokens have a fixed maximum written into a smart contract. Others have no cap, or a cap that can be changed by governance, in which case “max supply” may be blank or unreliable on a data page.
Two cautions apply. First, a cap says nothing about how fast coins arrive. Second, a cap that can be changed by a vote or an upgrade is a design choice rather than a guarantee, so it is worth reading how the cap is enforced.
Bitcoin as a simple case
For Bitcoin, the three figures are close. Circulating and total supply are almost the same, since there is no locked team allocation and every coin exists because a miner collected a block reward. Max supply is the 21 million limit, a little under it in exact terms. The small differences come from how providers treat provably burned coins and coins that appear lost, a topic covered in the article on lost coins.
For many newer tokens, the three figures can differ enormously. A project may have a large total supply with only a modest fraction circulating, with the rest scheduled to be released over time.
A worked example with made-up numbers
Imagine a token with a price of 2 dollars, a circulating supply of 100 million, a total supply of 400 million and a max supply of 500 million. These are illustrative figures only.
- Market capitalization using circulating supply: 2 x 100 million = 200 million dollars.
- Value using total supply: 2 x 400 million = 800 million dollars.
- Value using max supply: 2 x 500 million = 1,000 million dollars, or 1 billion.
The last two are sometimes shown as a fully diluted valuation. They are not a prediction of what the token will be worth, since they simply assume the price stays the same while more coins appear. The difference between the first and the others shows why a token with a small circulating share can look cheap or expensive depending on which number you read. Real tokens with large scheduled releases tend to deserve extra scrutiny, because new coins reaching the market can add selling pressure, though the effect on price is uncertain.
Why data sites disagree
If two sites show a different circulating supply for the same coin, there are usually ordinary explanations:
- They update on different schedules, so one number may be hours or days old.
- They treat locked, staked or treasury coins differently.
- They rely on different sources: the project’s own reports, their own calculations, or blockchain data read directly.
- They handle burned coins or coins on other chains (for example wrapped versions) in different ways.
Bigger discrepancies can also reflect mistakes or unreported changes. For a small token, an error in supply flows straight through to its market capitalization, making a coin look larger or smaller than it is.
How to read supply figures sensibly
When you look at a coin, compare the three numbers rather than reading only one. Ask what share of the max or total supply is circulating, whether more is due to unlock, and whether the project itself publishes a supply breakdown you can check. A basic understanding of tokenomics, meaning how a token’s creation and distribution were designed, makes these pages far easier to interpret.
None of this predicts price, and a coin is not a better or worse choice because of its supply numbers alone. Crypto prices are volatile, past performance does not predict future results, and you can lose everything you put in. This article is educational and is not financial, tax or legal advice.