What is circulating supply?

Circulating supply is the number of units of a cryptocurrency that are publicly available and moving in the market right now — the coins a person could actually buy or sell, as opposed to tokens that are locked, reserved, or not yet created. It is the supply figure that goes into a coin’s market capitalisation, which makes it one of the most consequential numbers on any market data page.

This article explains what circulating supply counts, how it differs from total and maximum supply, and why the figure is an estimate rather than an exact measurement. It is educational only and describes how a metric is defined.

What circulating supply counts, and what it excludes

Circulating supply aims to capture the tokens that are genuinely in the hands of the public and free to trade. In practice, data providers start from the tokens that have been issued on-chain and then subtract the ones that are demonstrably unavailable. Typical exclusions are:

• Team and founder allocations under vesting. Tokens promised to a project’s team or early backers but released only gradually over months or years.
• Tokens held in escrow or treasury. Supply parked in foundation wallets, ecosystem funds, or smart contracts with a scheduled release.
• Reserved or unminted supply. Tokens that exist in the design of the protocol but have not been created or distributed yet.
• Provably burned tokens. Coins sent to an address they can never leave, permanently removing them from supply.
• In some methodologies, long-lost coins. Provably inaccessible balances that some providers deduct and others do not.

What remains — issued, unlocked, and freely transferable — is the circulating supply.

Circulating vs total vs maximum supply

Three supply figures are commonly reported side by side, and confusing them is a frequent mistake:

Circulating supply is always the smallest of the three (or equal to them). Total supply adds back the locked and reserved tokens that are not yet tradable. Maximum supply, where it exists, includes everything that has not even been created yet. Some assets have no maximum supply at all, because their protocol issues tokens indefinitely.

Why it drives market cap

Circulating supply matters because it is one of the two inputs to market capitalisation:

Market cap = current price × circulating supply

Change the supply figure and the market cap changes with it, even if the price does not move. This is why the choice of what to include in circulating supply is not a trivial accounting detail — it directly sets the headline size of the asset. We cover the resulting metric in what is market cap in crypto. When the maximum supply is used instead of the circulating figure, you get a different and usually larger number, fully diluted valuation.

Low float and the distortion it creates

The share of total supply that is actually circulating is often called the float. When only a small percentage of a token’s eventual supply is circulating — a “low float” — a couple of effects follow:

• Prices can move on little trading. With few units available, a modest amount of buying or selling can shift the price sharply, because there is not much tradable supply to absorb it. This is closely tied to market liquidity.
• Market cap can look large on a thin base. A high price applied to a small circulating supply produces a market cap that may not reflect how much could actually be traded at that level.
• Future unlocks are pending. Tokens still locked in vesting will enter circulation later. When they do, circulating supply rises, and that is worth understanding before reading too much into today’s figure.

None of this is a prediction about price. It is simply a description of how a small tradable float behaves mechanically.

How circulating supply changes over time

A common mistake is to treat circulating supply as a fixed property of a coin. For many tokens it is not; it follows a schedule, and understanding that schedule is part of understanding the asset. Supply typically enters circulation through a few mechanisms:

• Vesting unlocks. Tokens allocated to a team, advisors, or early backers are usually released in tranches over months or years. On each unlock date, a batch moves from locked to circulating, raising the figure in a step.
• Emissions and rewards. Some protocols mint new tokens continuously as staking rewards, liquidity incentives, or block rewards. Here circulating supply drifts upward gradually rather than in steps.
• Treasury or foundation releases. Tokens held in reserve may be released to fund grants, development, or ecosystem programmes, adding to circulation when they are distributed.

Working in the other direction, burns permanently remove tokens from supply, which can reduce circulating supply or slow its growth. The net effect at any moment is the balance of new tokens entering and tokens being burned. Because of all this, a snapshot of circulating supply is exactly that — a snapshot — and the trajectory implied by the token’s schedule can matter as much as today’s figure.

Why the number is an estimate

It is tempting to think circulating supply can be read straight off the blockchain, but it cannot be fully automated. On-chain data shows how many tokens exist and where they sit, but it does not label a wallet as “team allocation under a two-year vest” or “exchange cold storage.” Providers combine on-chain data with project disclosures, vesting schedules, and their own verification rules to decide what to exclude.

Because those rules differ, CoinGecko and CoinMarketCap can report slightly different circulating supply for the same asset, and therefore different market caps. Their published methodology pages set out the criteria each one uses. The practical takeaway is to treat circulating supply as a well-informed estimate, and to check the provider’s definition before relying on a precise figure.

Self-reported versus verified supply

Another reason circulating-supply figures differ is how they are sourced. In some cases a project self-reports its circulating supply; in others, the data provider independently verifies it against on-chain contracts and locking schedules. Reputable aggregators increasingly favour verifiable, on-chain-auditable supply and may flag or adjust figures they cannot confirm. This matters because a self-reported number can understate or overstate what is genuinely liquid, depending on how the project chooses to categorise its own reserves and locked allocations. When a figure carries a note that it is self-reported or unverified, it deserves more caution than one a provider has audited. The practical habit is to check not just the number but where it came from, and to prefer sources that explain how they arrived at it.

Common mistakes to avoid

• Reading total supply as if it were circulating. Total supply includes locked tokens; using it in place of circulating overstates what is tradable today.
• Assuming supply is fixed. For many tokens, circulating supply grows over time as vesting unlocks release tokens or as the protocol issues new ones.
• Ignoring the float. A large market cap built on a tiny circulating share behaves very differently from the same market cap spread across a fully distributed supply.

The bottom line

Circulating supply is the count of freely tradable tokens, and it is the supply figure that turns a price into a market cap. It sits below total and maximum supply, it changes as tokens unlock or new ones are minted, and it is an estimate that varies by provider. Understanding what it includes — and what it deliberately leaves out — is essential to reading any crypto market data page without being misled.