What Is a Coin Market Cap Calculator? How to Calculate Crypto Price From Market Cap
Learn what a crypto market cap calculator is, the simple formula behind it, and how to calculate what any coin would be worth at a target market cap, with worked examples.
"What would this coin be worth if it reached the market cap of Ethereum?" Almost every crypto investor has asked a question like that. A coin market cap calculator answers it in seconds. In this guide you will learn what market cap means, the simple formula behind every calculator, how to do the math by hand, and the mistakes that lead to unrealistic price predictions.
What is market capitalization in crypto?
Market capitalization (market cap) is the total value of all coins currently in circulation. It tells you how big a cryptocurrency is compared with others. A coin's price alone means very little: a $0.01 coin can be worth more in total than a $1,000 coin if it has far more coins in circulation.
Market Cap = Current Price × Circulating SupplyFor example, if a coin trades at $2 and there are 500 million coins in circulation, its market cap is $2 × 500,000,000 = $1 billion.
What is a coin market cap calculator?
A coin market cap calculator is a tool that flips the market cap formula around. Instead of asking "what is the market cap at today's price?", it asks "what would the price be at a market cap I choose?" You pick a coin and a target market cap, and the calculator shows the price per coin plus how many times (x) it would have to grow from today.
Our market cap calculator uses live prices and circulating supply from CoinGecko, so the result always reflects the latest market data. It works in two directions:
- Market cap → price: enter a target market cap (for example $100B) to see the price per coin.
- Price → market cap: enter a target price (for example $10) to see the market cap the coin would need.
How to calculate a coin price from market cap
The math is simple division. Take the target market cap and divide it by the circulating supply:
Price = Target Market Cap ÷ Circulating SupplyTo find how much the coin would need to grow, divide the target market cap by the current market cap (or the target price by the current price):
Growth (x) = Target Market Cap ÷ Current Market CapStep-by-step example
- Find the circulating supply. Say a coin has 500 million coins in circulation.
- Choose a target market cap. Say you want to know the price at a $50 billion market cap.
- Divide. $50,000,000,000 ÷ 500,000,000 = $100 per coin.
- Compare with today. If the coin trades at $2 today, $100 ÷ $2 = 50x growth.
| Target market cap | Price per coin | Growth from $2 |
|---|---|---|
| $1 billion | $2.00 | 1x |
| $10 billion | $20.00 | 10x |
| $50 billion | $100.00 | 50x |
| $100 billion | $200.00 | 100x |
| $1 trillion | $2,000.00 | 1,000x |
How to calculate market cap from a target price
Going the other way is just as easy. Multiply the target price by the circulating supply:
Required Market Cap = Target Price × Circulating SupplyThis is the best sanity check for price predictions. If someone says a coin with 50 billion coins in circulation will hit $10, the market cap would need to be $500 billion. That is bigger than most cryptocurrencies have ever been. Seeing the required market cap makes it obvious whether a target is realistic.
Circulating supply vs total supply vs max supply
Which supply number you use changes the result a lot, so it helps to know the difference:
- Circulating supply: coins that exist and can be traded right now. This is what market cap and our calculator use.
- Total supply: all coins created so far, including locked or reserved coins that are not yet tradable.
- Max supply: the hard limit on how many coins can ever exist. Bitcoin is capped at 21 million; some coins have no cap at all.
If a large share of coins is still locked, the circulating supply will grow over time. More coins in circulation means the same market cap is split across more coins, so the price per coin is lower. Each coin page on this site shows circulating supply, max supply and fully diluted valuation so you can check this.
What is fully diluted valuation (FDV)?
Fully diluted valuation is the market cap a coin would have if its entire max supply were in circulation at today's price.
FDV = Current Price × Max SupplyWhen FDV is much higher than market cap, many coins are still to be released. This can push the price down as new coins hit the market, which is worth considering before trusting any price target.
Real-world example: what if a coin reached Bitcoin's market cap?
One of the most popular comparisons is "what would X be worth at Bitcoin's market cap?" To work it out, take Bitcoin's current market cap and divide it by the other coin's circulating supply. Every coin page on this site does this automatically with live data. Open any coin from the list of calculators and use the BTC cap preset to see the answer.
Common mistakes when using a market cap calculator
- Looking only at price. A low price does not mean a coin is cheap. Always check the market cap.
- Ignoring future supply. Token unlocks and inflation increase circulating supply and lower the price at the same market cap.
- Assuming any market cap is reachable. A $1 trillion market cap would put a coin among the largest assets in crypto history. Compare targets with the market cap milestones of existing coins.
- Forgetting liquidity and demand. Market cap is a snapshot of price times supply. It is not money that has flowed into the coin.
Summary
A coin market cap calculator turns the market cap formula around to show what a coin would be worth at any size. The key formula is Price = Market Cap ÷ Circulating Supply. Use it to test price predictions, compare coins with each other, and set realistic expectations. Try it now on the homepage calculator or browse all coin calculators.
Frequently asked questions
How do you calculate the price of a coin from its market cap?
Divide the market cap by the circulating supply. For example, a $10 billion market cap divided by 1 billion coins gives a price of $10 per coin.
What is the market cap formula in crypto?
Market cap equals the current price multiplied by the circulating supply. A coin priced at $5 with 200 million coins in circulation has a $1 billion market cap.
Is a crypto market cap calculator accurate?
The math is exact for the numbers you enter. Our calculator uses live CoinGecko prices and supply. However, it cannot predict whether a market cap will be reached, and future changes in supply will change the result.
Should I use circulating supply or max supply?
Use circulating supply for current market cap and realistic short-term targets. Use max supply to see the fully diluted valuation, which shows what happens once every coin has been released.