Hash Rate
The computational power or speed at which miners solve hashes to find valid blocks in a proof-of-work blockchain.
Last Updated
2026-03-19
Related Concepts
What is Hash Rate?
Hash rate is a measure of the total computational power being used to mine and process transactions on a Proof-of-Work (PoW) blockchain. It represents the speed at which the network's hardware is performing cryptographic calculations to find the next valid block.
How does Hash Rate work?
- Miners use specialized hardware to perform billions of "guesses" (hashes) per second.
- The network sets a "difficulty target" that miners must hit to find a block.
- Total hash rate is the sum of all individual miners' computing power.
- As more miners join, the total hash rate increases.
- The network adjusts its difficulty to keep block times consistent despite changes in hash rate.
Why does Hash Rate matter?
A high hash rate is a primary indicator of a blockchain's security; the more computing power dedicated to the network, the more expensive and difficult it is for an attacker to perform a 51% attack.
It also reflects the overall health and "miner confidence" in a particular cryptocurrency.
Key features of Hash Rate
- Measured in hashes per second (H/s)
- Direct indicator of network security
- Influences mining difficulty
- Driven by hardware efficiency and energy costs
- Expressed in units like Terahash (TH/s) or Exahash (EH/s)
Examples of Hash Rate
The Bitcoin network's hash rate is often measured in Exahashes per second (EH/s), representing quintillions of hashes performed every single second by miners worldwide.