Hashrate (or hash rate) is how cryptocurrency mining power is measured. Hash rates are reported for individual miners as well as for the entire industry.
The number of times that a mining machine executes a hash function per second is known as the hashrate. A hash is the output of a hash function. The hash rate varies by the cryptocurrency that is being mined because the algorithms vary across cryptocurrency. Hash rates are measured in hashes per second, written h/s or H/s.  Bitmain, a Chinese manufacturer of application specific integrated circuit miners, advertises that its newest Antminer S9 has a hash rate of 14.5 Th/s, which is 14.5 trillion hashes per second when mining bitcoin. 
The hashrate is also the measuring unit of the processing power of the entire bitcoin network. According to Blockchain, a bitcoin industry data service, as of August 6, 2018 the hashrate for the bitcoin network had reached 55 quintillion which is 55 million trillion or 55,000,000,000,000,000,000 hashes per second.