Gigahash per second (GH/s) measures the computational power used in cryptocurrency mining. Specifically, it quantifies how many billion hash calculations a mining device can perform in one second.Hashing is a process that takes an input and produces a fixed-size string of characters, which is essential for validating transactions and securing the blockchain. In many cryptocurrencies, miners compete to solve complex mathematical problems by generating hashes, and the first one to find a valid hash gets to add a new block to the blockchain, earning rewards in the form of coins.The higher the GH/s value of a miner, the more hashes it can compute per second, increasing its chances of successfully mining a block and earning rewards. Miners often compare GH/s output to determine the efficiency and profitability of their operations.This measurement is crucial for understanding mining hardware performance and choosing appropriate setups for maximizing returns in mining activities. It also helps users estimate potential returns based on network difficulty and coin reward structures.