_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 10 I started mining on a friend's computer and it shows 300 kH/s.But when I research other peoples' hash rates I usually see MH/s.Are these speeds the same as kilobytes and megabytes?Also, when I say 300 kH/s does that mean 300,000 Hashes generated per second?hashpower terminology up vote down vote Sure: 1 kH/s is 1,000 hashes per second (sometimes mistakenly written KH/s).1 MH/s is 1,000,000 hashes per second.1 GH/s is 1,000,000,000 hashes per second.1 TH/s is 1,000,000,000,000 hashes per second.1 PH/s is 1,000,000,000,000,000 hashes per second.up vote down vote Hash rate denominations 1 kH/s is 1,000 (one thousand) hashes per second 1 MH/s is 1,000,000 (one million) hashes per second.1 GH/s is 1,000,000,000 (one billion) hashes per second.1 TH/s is 1,000,000,000,000 (one trillion) hashes per second.

1 PH/s is 1,000,000,000,000,000 (one quadrillion) hashes per second.1 EH/s is 1,000,000,000,000,000,000 (one quintillion) hashes per second.Conversions 1 MH/s = 1,000 kH/s 1 GH/s = 1,000 MH/s = 1,000,000 kH/s 1 TH/s = 1,000 GH/s = 1,000,000 MH/s = 1,000,000,000 kH/s and so forth SI unit prefixes The denomination of hash rates follows the International System of Units (SI).kilo-, mega-, giga-, tera-, peta-, exa-, hereby describe prefixes increasing by a factor of one thousand.Please note, that the symbol for kilo- is a lower-case "k".As "K" is the symbol for kelvin, the unit of thermodynamic temperature.The following table from Wikipedia shows an overview of the prefixes, symbols, and factors they correspond to.Inconsistency of kilobyte, megabyte, and gigabyte The computer industry's use of kilobyte, megabyte, and gigabyte is inconsistent with the SI.The Joint Electron Device Engineering Council (JEDEC) has redefined the prefixes kilo-, mega- and giga- in correspondence with bit and byte as powers of 1024 instead of 1000.

Higher prefixes were not redefined by JEDEC.In order to avoid this inconsistency, the International Electrotechnical Commission (IEC) has proposed the binary prefix which uses kibi [Ki], mebi [Mi], and gibi [Gi] for 1024¹, 1024², and 1024³ respectively.The following table from Wikipedia gives an overview.up vote 4 down vote kH/s means thousands of hashes per second.ethereum electric carsMH/s means millions of hashes per second.bitcoin billionaire islandGH/s means billions of hashes per second.bitcoin doge exchange300 kH/s is 300,000 hashes per second or .3 MH/s.bitcoin arbitrage systemup vote 2 down vote Hello I would refer you to wikipedia Metric prefixes.good wife bitcoin episode

Hashes are measured in standart SI metric prefixes such as Kilo - 1 000 Hashes/s Mega - 1 000 000 Hashes/s Giga - 1 000 000 000 Hashes/s E.G.2 Kh/s means that 2 000 hashes can be solved per second.If you would like to know more about Hash visit bitcoin.it From bitcoin.it : A hash algorithm turns an arbitrarily-large amount of data into a fixed-length hash.litecoin on nvidiaThe same hash will always result from the same data, but modifying the data by even one bit will completely change the hash.Like all computer data, hashes are large numbers, and are usually written as hexadecimal.BitCoin uses the SHA-256 hash algorithm to generate verifiably "random" numbers in a way that requires a predictable amount of CPU effort.Generating a SHA-256 hash with a value less than the current target solves a block and wins you some coins.Or you might check this: Cryptographic hash protected by Tim Post Thank you for your interest in this question.

Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).Would you like to answer one of these unanswered questions instead?Browse other questions tagged hashpower terminology or ask your own question.Jump to: , See also: Non-specialized hardware comparison Below are statistics about the Bitcoin Mining performance of ASIC hardware and only includes specialized equipment that has been shipped.GPUs, CPUs and other hardware not specifically designed for Bitcoin mining can be found in the Non-specialized_hardware_comparison.Be sure to research any of these vendors and machines intensely before spending any money.The Medium Genesis Ethereum Mining contract is the latest offering from the reputable provider of outsourced crypto mining contracts.The contracts have a lifetime of two year and the Company guarantees 100% uptime by substituting their own equipment.There are no extra fees to pay on top of the original price.

This large scale mining contract is for 30MH/s at a cost of $869 - or $28.96 per MH/s.Related guides Choose a Bitcoin mining pool and how to connect What is a Mining Pool?How to Dual Mine Ethereum and another coin How to mine Ethereum "the Easy Way" - an Ethereum Mining Contract?How to Identify a Bitcoin or Ethereum Cloud Mining Scam?How to connect to an Ethereum mining pool?How to mine Zcash How to use Ethos to manage your Ether mining How has Bitcoin mining changed?How to set up a Bitcoin miner How to mine Ethereum with MinerGate (on any PC) How to mine NXT?Bitcoin Profitability Calculator – BTC Mining Profit Calculator Enter your set up information in the form below.Do not enter commas, only dots for decimal separator.Bitcoin difficulty Bitcoins per Block (BTC/block) Conversion rate (USD/BTC) Hash rate TH/s GH/s MH/s Electricity rate (USD/kWh) Power consumption (W) Time frame (months) Cost of mining hardware (USD) Profitability decline per year Nothing guaranteed, of course this is only a rough estimate!

You can also calculate rented mining by setting “Power consumption” to 0 and “Cost of mining hardware” to the rent per time frame.Default values are for a system of four 6870s.Estimate Strategy Extrapolating bitcoin difficulty or price is pure voodoo.It is much easier to predict the relationship of the two parameters in form of the Mining Factor.The Mining Factor 100 is the value in USD of the bitcoins you can generate if you let a 100MHash/s miner run for 24 hours.If the Mining Factor 100 rises above $2 or so everybody buys mining equipment and thus increases difficulty.If it falls people will stop mining eventually.The estimate starts with the current Mining Factor and decreases it exponentially such that the decrease accounts for the factor decline per year.Please note that a profit/loss by holding the coins is not accounted for in this estimate.Things to consider that might eat into your profit: The values above are only a snapshot.The network and markets are moving quickly.

Check out these diagrams to get a feeling for it.Looks like if your mining operation is not profitable now, it probably will not be in the future.With rising bitcoin exchange rates it might be more profitable to buy bitcoins than to mine.There are spreadsheets available in this thread or this one (with some FPGA data) for a more custom calculation.Bitcoin exchanges: LocalBitcoins, BitQuick.The calculation is based on average block generation time.The closer the average generation time is to the time frame the more the resulting revenue depends on luck.You will have to pay mining pool fees from close to nothing up to 3% depending on the pool.Unless you want to do pool hopping you should go to a pool with hopping protection.I recommend Arsbitcoin and EclipseMC (with namecoin merged mining).P2Pool is a new completely decentralized alternative.You will get somewhere from 1% to 3% of “stale shares”.The Bitcoin block mining reward halves every 210,000 blocks, the coin reward will decrease from 25 to 12.5 coins; Reward-Drop ETA date: 09 Jul 2016.

This might partly be compensated by falling difficulty, raising prices, higher transfer fees, etc. A mining computer generates a lot of heat as a byproduct.This can impact your heating/airconditioning costs depending on outside temperatures.Other byproducts could be noise and an angry wife.Do you have lots of experience with and like working with computers during lonesome nights?You have to spend quite some time to set up the system (easily several days!)You will not get a 100% uptime.You will probably not be able to reach the highest values in the Mining Hardware Comparison.Some bragging / measuring error and extensive overclocking of the cards is involved here.Note ClockTweak, a win32 command line overclocking/underclocking tool powered by bitcoinX.Scaling effects: three cards in one rig do worse than a single card because it gets harder to get out the heat.Results in the list above do not reflect the number of cards.A disruptive technology like ASIC chips could show up and make GPU mining less profitable.