Gas calculation refers to determining the cost of executing transactions or smart contracts on a blockchain, particularly Ethereum. Each operation or action within these networks requires a certain amount of computational power, which is measured in “gas.”Gas is a unit used to quantify the amount of work involved in a transaction. Users must specify a gas limit, which is the maximum amount they are willing to pay for their transaction. The gas price, usually expressed in Gwei (a subunit of Ether), reflects how much Ether a user is willing to pay per gas unit.When a transaction is submitted, miners or validators prioritize those with higher gas prices, leading to faster processing. If a transaction consumes less gas than the limit set by the user, the remaining amount is refunded. Conversely, if the transaction exceeds the limit, it fails, but the user still pays for the gas used.Understanding gas calculation is essential for efficiently managing transaction costs and ensuring timely processing on the network.