In the world of crypto market capitalization (also known as market cap) refers to the total value of all the coins or tokens in circulation. It is calculated by multiplying the current price of a cryptocurrency by its circulating supply. For example,
Bitcoin.
The current price of Bitcoin is 31,000.
The circulating supply is 21 million
So market capitalization would be
31,000 price × 21million supply
= $651 billions.
Why market cap?
Market capitalization is often used as a measure of the size or importance of a cryptocurrency and is an important factor in determining its position in the overall cryptocurrency market. Higher market capitalization generally indicates a more established and widely recognized cryptocurrency, while lower market capitalization may indicate a newer or lesser-known cryptocurrency
Top 10 currency by market cap.

Data is for 20 June , because market cap varies with price.
- Bitcoin (BTC): 24,515,413,373
- Ethereum (ETH): 1,177,543,592
- Tether (USDT): 68,051,509,648
- Binance Coin (BNB): 63,821,034,524
- Cardano (ADA): 15,230,306,913
- Solana (SOL): 11,823,160,909
- XRP (XRP): 7,124,720,821
- Polkadot (DOT): 6,922,427,105
- Dogecoin (DOGE): 772,921,009
- Uniswap (UNI): 6,329,270,759
Top Crypto with Circulation supply.
Bitcoin (BTC): 21,000,000 BTC
Ethereum (ETH): 124,900,000 ETH
Tether (USDT): 68,051,509,648 USDT
Binance Coin (BNB): 192,532,200 BNB
Cardano (ADA): 32,032,750 ADA
The market cap is symbol of strength, dominance and siza of any Crypto currency and investors always looks into it before any investment. It is also a visibility scale of project which present the power and energy in the currency.
Cheers,
Amjad