The crypto market cap calculator shows the price a coin would trade at if its market cap hit a figure you choose. It works from circulating supply and price. A coin with 1,000,000,000 in circulation at $0.50 would trade at $100.00 at a $100 billion cap, 200 times today’s price. That’s arithmetic, not a forecast.
Price at that market cap
$100.00
At a $100,000,000,000 market cap, a coin with 1,000,000,000 in circulation would trade at $100.00, 200x today's price.
Informational only, not financial advice.
- Market cap at that price
- $100,000,000,000
- Price at that market cap
- $100.00
- Market cap today
- $500,000,000
- Multiple of today's price
- 200x
- Change from today
- 19,900%
- Your coins today
- $500.00
- Your coins at that price
- $100,000.00
Saved scenarios
Saved in this browser only. Each column is recalculated whenever the page loads.
Price at other market caps
| Market cap | Price | Multiple |
|---|
How this is calculated
- How it works
- Market cap is price times circulating supply, so the price at any market cap is that cap divided by the supply, and the market cap at any price is that price times the supply. Supply is held fixed here; coins issued later would lower the price at any given cap. A what-if, not a forecast or a recommendation.
- Not covered
- Fixed supply; no unlocks, burns, inflation or the liquidity a market cap that size would need.
- Privacy
- Your numbers never reach our server. The math runs on your device, inside this page.
- Corrections
- Report an error in the math to media@coinlaw.io; every report is reviewed and confirmed errors are corrected. Include the inputs and the answer you expected. With your permission, we thank you by name on this page.
- Updates
- Live price buttons added beside the price field.
- Feedback
- How useful was this tool?
Table of Contents
How to Use the Crypto Market Cap Calculator
The market cap calculator takes four numbers and returns six. Per FINRA and the SEC, market cap is a price multiplied by the units outstanding; for a coin, those units are its circulating supply. It runs in your browser, and nothing you enter reaches our server.
- Type the coin’s “Circulating supply”: the number of coins in circulation, from the project or a market data site. Sites count it differently, per CoinMarketCap and CoinGecko’s own methodology pages, compared below.
- Enter its “Current price” in US dollars. The field takes up to eight decimals, so a coin priced in fractions of a cent fits.
- Put the cap you want to test in “Market cap to imagine”, in full dollars, such as another coin’s current market cap.
- Add “Coins you hold” if you want the value of a holding. The field is marked “Optional”; left blank, the two holding lines read zero.
“Price at that market cap” leads the results. “Market cap today”, “Multiple of today’s price” and “Change from today” come next. The holding lines, “Your coins today” and “Your coins at that price”, close the panel.
Below them, the table “Price at other market caps” repeats the division at six fixed caps from $1 billion to $2 trillion. Its columns are “Market cap”, “Price” and “Multiple”. A sub-dollar price prints to four significant digits, so a coin worth a fraction of a cent stays readable.
Four “Examples” chips load ready-made cases. “A $100 billion cap” loads the opening case, and “A $1 trillion cap” puts the same coin at a $1 trillion cap. “A $1 coin” switches “Work out” to “The market cap at a price”: The same coin at a “Price to imagine” of $1.00 shows a “Market cap at that price” of $1 billion, 2 times today’s price, and the last chip loads the meme coin case worked through below.
“Reset” restores the defaults. “Save scenario” keeps up to three sets of inputs in this browser and lines them up side by side. “Share result” builds a link that opens on the same inputs. “Download CSV” saves the table, and “Copy all details” copies the inputs and results as text.
How the Price at a Market Cap Is Calculated
Market cap is price times circulating supply, so the price at any market cap is that cap divided by the supply.
The SEC’s investor site, Investor.gov, defines market capitalization as the value of a corporation determined by multiplying the current public market price of one share of the corporation by the number of total outstanding shares. For a coin, the circulating supply takes the place of the shares.
FINRA describes the same steps: take the total number of a company’s shares outstanding and multiply that figure by the company’s current stock price. In its example, if a company has 5 million shares outstanding and its current stock price is $20, it has a market capitalization of $100 million.
That formula runs forward and backward here. With S as the circulating supply, P the current price, T the market cap to imagine and H the coins you hold:
- Market cap today: M = S × P.
- Price at that market cap: P* = T ÷ S.
- Multiple of today’s price: X = P* ÷ P, which equals T ÷ M.
- Change from today: C = X – 1, shown as a percentage.
- Your coins today: H × P. Your coins at that price: H × P*.
Any negative entry counts as zero. A supply of zero stops the tool with a prompt to enter the circulating supply. A price of zero sets the multiple and the change to zero, since no multiple of a zero price exists.
Worked Example: A Coin at a $100 Billion Market Cap
On load, the calculator opens on this case, and the steps below reproduce its results. Its inputs are a “Circulating supply” of 1,000,000,000 and a “Current price” of $0.50. “Market cap to imagine” holds $100,000,000,000, with 1,000 “Coins you hold”.
- Market cap today: 1,000,000,000 × $0.50 = $500,000,000.
- Price at that market cap: $100,000,000,000 ÷ 1,000,000,000 = $100.00.
- Multiple of today’s price: $100.00 ÷ $0.50 = 200. Dividing the two caps gives the same answer: $100 billion ÷ $500 million = 200.
- Change from today: (200 – 1) × 100 = 19,900%.
- Your coins today: 1,000 × $0.50 = $500.00. At that market cap: 1,000 × $100.00 = $100,000.00.
The other Examples chip keeps every input except the cap. At $1 trillion, the same coin would trade at $1,000.00, 2,000 times today’s price. The holding would show $1,000,000.00.
What the Result Means
What you get is the price that would make the coin’s market cap equal the figure you typed, with the supply held where you set it. It is division, not a forecast: nothing in the formula says whether buyers would ever pay that price.
Two outputs are easy to misread. The multiple is the imagined cap divided by today’s cap, so a coin at $500 million needs 200 times its cap to reach $100 billion. Its unit price doesn’t enter into it.
Meanwhile, “Change from today” is that multiple minus 1, so 200 times reads 19,900%. The starting price is part of the 200, not a gain on top of it.
This calculator leaves out what would change the supply or the market around it. Token unlocks (coins released from team or investor lockups), burns, new issuance and the trading depth a cap that size would need are all outside it.
FINRA notes that part of a market value can rest on expectations of growth, and those expectations may not pan out. Thin markets add a separate risk. The CFTC warns of pump-and-dump schemes that can occur in thinly traded or new “alternative” virtual currencies and digital coins or tokens.
Common Mistakes With Market Cap What-Ifs
- Typing the maximum or total supply as “Circulating supply”. That count belongs to a fully diluted valuation, which CoinMarketCap computes as Maximum Supply x Price, and it lowers the price at any cap.
- Entering the cap in billions. “Market cap to imagine” takes full dollars, so $100 billion goes in as 100,000,000,000.
- Reading “Multiple of today’s price” as the percent gain. A multiple of 2 is a 100% rise: the price doubles.
- Mixing data sites. A target copied from one site and a supply from another blend two definitions of circulating supply.
- Skipping the table for a sub-cent coin. “Price at other market caps” shows such prices to four significant digits.
Which Supply Figure to Enter
Enter the supply that matches the cap you are comparing against, because data sites don’t all count circulating supply the same way.
CoinMarketCap’s support documentation says that in crypto, ‘Market Cap’ is a polysemous term in that it is often used to describe distinct valuation metrics that share the same label.
| Count | What it includes |
|---|---|
| CoinMarketCap circulating supply | Coins held by the public; insider and strategic holdings filtered out |
| CoinGecko circulating supply | Pre-mine coins (created before public launch) included, because whoever controls them can sell them |
| Maximum supply (fully diluted valuation) | Every coin the project can ever issue, including coins not yet released |
Source: CoinMarketCap support documentation (Supply: Circulating, Total, Max); CoinGecko methodology
CoinMarketCap’s documentation states that circulating supply in crypto markets is the direct analog of public float in equities. Public float is the stock-market term for shares that trade freely, outside insiders’ hands. CoinGecko states that it includes pre-mine coins in the Circulating Supply calculation as these coins can be sold by whoever that has control of these coins. Each count has its logic. A coin with a large team allocation can therefore show two supplies, two caps today and two what-if prices. The crypto market capitalization data shows how those totals are reported market-wide.
The what-if price moves in inverse proportion to the supply typed. Holding the opening coin at $0.50 and the target at $100 billion:
| Supply counted | Price at that market cap | Multiple of today’s price |
|---|---|---|
| 1 billion | $100.00 | 200 |
| 1.25 billion | $80.00 | 160 |
| 2 billion | $50.00 | 100 |
| 10 billion | $10.00 | 20 |
Source: FINRA market cap formula applied to the calculator’s opening inputs; the supply counts are hypothetical
Counting a quarter more coins, 1.25 billion against 1 billion, cuts the price at the same cap from $100.00 to $80.00, a 20% drop. “Save scenario” can hold three supply counts for the same coin and show the results side by side. The supply field moves the answer as much as the target does, so it deserves the same scrutiny.
Why Supply Does Not Stay Fixed
The calculator holds supply fixed, while the supply of many coins changes over time. More coins at the same cap mean a lower price, and fewer coins mean a higher one.
Bitcoin’s supply still grows on a schedule. The bitcoin.org FAQ says the number of new bitcoins created each year is automatically halved over time until bitcoin issuance halts completely with a total of 21 million bitcoins in existence. So a what-if run on today’s circulating count describes fewer bitcoins than the protocol will issue. The current bitcoin supply figures show how far along that schedule it is.
Ether can move either way. Ethereum’s fee-market proposal, which destroys each transaction’s base network fee, states that by burning the base fee, we can no longer guarantee a fixed Ether supply. Unlocks, burns and new issuance all sit outside the tool, so a what-if set years ahead needs the supply expected at that date typed in.
Using the Calculator for a Meme Coin
A meme coin goes through the same division as any other coin: enter its full circulating supply and its price, decimals included. Meme coins tend to pair a supply in the trillions with a price in fractions of a cent, and the price field takes up to eight decimals, so both fit.
Take a coin with 1,000,000,000,000 in circulation at $0.000001, the case the “Meme coin to a $1 billion cap” chip under “Examples” loads. Its market cap today is 1,000,000,000,000 × $0.000001 = $1,000,000. Type 1,000,000,000 into “Market cap to imagine” and 100,000,000 into “Coins you hold”:
- Price at that market cap: $1,000,000,000 ÷ 1,000,000,000,000 = $0.001.
- Multiple of today’s price: $0.001 ÷ $0.000001 = 1,000, the same as $1 billion ÷ $1 million.
- Change from today: (1,000 – 1) × 100 = 99,900%.
- Your coins today: 100,000,000 × $0.000001 = $100.00. At that market cap: 100,000,000 × $0.001 = $100,000.00.
The limits above weigh more on a coin like this. The supply stays where you typed it, so any coins minted or burned later change the price at every cap: with twice the supply, the same $1 billion cap prices each coin at $0.0005. Copy the supply from the same data site as any cap you compare against, for the reasons in the supply section.
A thousandfold multiple measures how far demand would have to travel; the arithmetic says nothing about whether it will. The result is a what-if, never a forecast.
Is market cap what a coin is worth?
No. Market cap multiplies the latest price by the coins counted; it’s not a sum anyone could collect by selling.
Of a company’s market cap, FINRA writes that it isn’t necessarily the actual value of a company and all of its parts. It also warns that newer investors might mistakenly believe that stock price alone could be a good indicator of how large a company is. Coins work the same way. A low unit price says nothing about a coin’s size until the supply is known.
For many small coins the price itself is the soft input. In a staff statement on meme coins, the SEC’s Division of Corporation Finance says their value is driven primarily by market demand and speculation. The market caps of meme coins show how far such caps travel.
Is there a good market cap for a coin?
No regulator sets one for coins. FINRA groups stocks by size and says the delineation between each group can vary; its usual bands are below.
| Group (stocks) | Market value |
|---|---|
| Mega-cap | $200 billion or more |
| Large-cap | $10 billion to $200 billion |
| Mid-cap | $2 billion to $10 billion |
| Small-cap | $250 million to $2 billion |
| Micro-cap | Less than $250 million |
Source: FINRA, Market Cap Explained
On those stock bands, the opening coin’s $500 million cap today sits in the small-cap range. The $100 billion what-if sits in the large-cap range. Crossing two bands describes a different kind of asset, not the same coin with a higher price tag.
Good to Know Before You Use It
The calculator runs in the browser, and nothing you enter reaches our server. It assumes the circulating supply you type stays fixed and that every figure is in US dollars. It also treats the target as a market cap, not a price or a fully diluted valuation.
The method is FINRA’s market cap formula run backward. The price at a cap is the cap divided by the supply, and the multiple is the ratio of the two caps. Token unlocks, burns, new issuance, trading fees and the liquidity a cap that size would need all sit outside it. The tool fetches no live price or supply.
CoinLaw publishes this page for information and gives no financial advice. A price at an imagined market cap is arithmetic, not a forecast or a price target.
Conclusion
A coin with 1,000,000,000 in circulation at $0.50 would trade at $100.00 at a $100 billion market cap, 200 times today’s price. Next, try the supply each data site reports in the market cap calculator, keep the cap you have in mind, and see how far the answer moves. For bitcoin’s own cap and supply history, see the bitcoin market data.
