How Is the Gas Price Measured (E.g. Gwei)?
Gas price is measured in Gwei, which is a denomination of the native cryptocurrency (e.g. Ether for Ethereum).
One Gwei is equal to 10^9 (one billion) Wei, and one Ether is equal to 10^18 Wei. Users set the gas price they are willing to pay per unit of gas, and this price determines the total fee.