Hash Rate

Definition

Hash rate measures how many hashing attempts mining equipment performs per second. Units such as terahashes per second and exahashes per second describe increasingly large quantities of calculations. A miner's hash rate affects its expected share of proof-of-work opportunities relative to other miners, but it does not guarantee a block discovery within a particular period. The network's total hash rate is generally estimated from observed block production and difficulty rather than measured by directly inspecting every machine. Short estimation windows can therefore be noisy. Hash rate also differs from energy efficiency: equipment may perform many calculations while consuming substantially different amounts of electricity. Comparisons across cryptocurrencies require caution because different mining algorithms perform different kinds of work. For Bitcoin, hash rate is one indicator of mining activity, not a direct measure of transaction throughput, user adoption, decentralization, or investment value.