_ 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 4 down vote favorite 3 Irrespective of the length of time required to calculate one hash, how many hash operations are required to produce one Bitcoin?mining-theory hash mining-reward hashpower sha256 up vote 7 down vote These charts show the approximate network hash rate on the left axis: http://bitcoin.sipa.be/ We know the network adjusts for 25 new bitcoins per 10 minutes.Together this provides enough info to give an approximate answer to your question: hashes per bitcoin = (network hash rate) / (25 BTC per 10 minutes) = (180 * Th / s) / (25 * BTC / (600 * s) ) = 180 * 600 / 25 * Th / s / BTC * s = 2,700 Th / BTC = 2,700,000,000,000,000 h/BTC up vote 1 down vote /calculators/finance/bitcoin-mining/ up vote 0 down vote Difficulty changes regularly, but there are calculators that take all current factors into account: /mining/calculator/btc?HashingPower=15&HashingUnit=TH%2Fs&PowerConsumption=0&CostPerkWh=0 As of today (17 Jan 2017): a theoretical 1,581 TH/s (equivalent of running a hundred Antminer S9's) will return 1 BTC in a day.

Tomorrow, it will be different.Browse other questions tagged mining-theory hash mining-reward hashpower sha256 or ask your own question.bitcoin randyGot your shiny new ASIC miner?bitcoin paling banyakWondering when it will pay off?bitcoin atm map londonIf you enter your hash rate below, this page will calculate your expected earnings in both Bitcoins and dollars over various time periods (day, week, and month).ethereum cost gbpIt will not attempt to extrapolate difficulty or price changes -- it provides only instantaneous calculations (how much you'd make if all conditions remained as they were right now).bitcoin abundance

Next difficulty retarget occurs at block 473759.0 (eta 7.6 days): 7.03028157958e+11 / -1.2% [est.] Has this service helped you?bitcoin qt ipad404 Page Not Found.xapo bitcoin accountOoops, the page you're looking for does not exist.x3 bitcoin/bitcoi... or one of the other mining calculators or pull the raw math from https://en.bitcoin.it/wiki/Diffi....Update October 1, 2015: Difficulty increased, now it is 120.9 TH/s for 1 BTC/day.Update May 21, 2016: Now 386.3 TH/s for 1 BTC/day.bitcoin etf chancesIncredible watching the bitcoin network scale so fast.Update August 17, 2016: Now 864.5 TH/s for 1 BTC/day.With the halving, we are starting to see the mining hash rate move down a little as large amounts of unprofitable equipment are being taken offline.

But all of the declines are being made up by new equipment coming online, with an amazing amount of power backing the network.Update October 3, 2016: Now 959.3 TH/s for 1 BTC/day.Bitcoin is clearly unstoppable, even if we don’t know quite what we are going to be using it for.How long does bitcoin need to be around for people and businesses to trust it for the exchange of value?Update October 25, 2016: Now 1009 TH/s for 1 BTC/day.The bitcoin network is now making 1,790,055,274,000,000,000 attempts per second to find the next block.This means the bitcoin blockchain is more secure than ever as bitcoin finishes out its eighth year of existence.Update November 27, 2016: Now 1121 TH/s for 1 BTC/day, with the bitcoin network making 2,140,590,815,000,000,000 attempts per second to find the next block.Adding a graph to show just how dramatic the rise in support for bitcoin has been.Update March 28, 2017: Now 1892 TH/s for 1 BTC/day!The network is currently making 3,596,936,257,000,000,000 attempts per second to find the next block.

Mining as a measure of the worldwide support for bitcoin bodes well for the network and the currency.Update April 13, 2017: Now 2071 TH/s for 1 BTC/day.Updated graph.Update June 17, 2017: Now 2830 TH/s for 1 BTC/day.Switched graph to an exponential scale, the network has grown in power so fast that linear graphs just go vertical.Sigh, you would need way too many TH/s to produce a single bitcoin.I am in BitClub Network and in Dragonmine.By far the best rates per $ I have come across are in Dragonmine.You can check out the production rates here.They start packages from US$25 so you build up incrementally.But at least you can see some transparency on the hash rate.of Dragon Mining (click on Dragon Mining) Ethereum is great.I get 0.33 Eth per day.And thanks to my Eth output I have been able to stock up on DAO and have a big stockpile of DAO speculating that DAO might go from US$0.10 eventually to US$1000 like Bitcoin.Wildly speculative, but none the less possible.If it does, then I will make a cool US$4m.refer and earn Bit coin use my url: Coinbase - Buy and Sell BitcoinCoinbase - Buy and Sell Bitcoin

KH/s MH/s GH/s TH/s PH/s Note: If some values in the Bitcoin mining calculator don’t seem right (exchange rate, block reward, etc.)you can adjust them manually.However normally they are all up to date.If you want to know more about Bitcoin mining profitability check out this page.Bitcoin mining secures the Bitcoin network.Without miners, Bitcoin could easily be attacked and even shut down.Since Bitcoin miners provide such an important service to the network, they are paid for their services!Each block mined by miners contains a block reward, which is paid out to the miner that successfully mined the block.While mining today is very competitive, it is possible to run a successful and profitable mining farm.This post will outline the many factors that will determine whether or not your mining operation will be profitable.The upfront costs to pay for mining hardware is usually the largest expense for any new mining farm.Just like good computers cost more money, good mining hardware is expensive.

The Antminer S7 is one currently the most efficient miner and costs $629.It only mines about $200 worth of bitcoins per month, meaning just based on hardware costs alone it will take more than three months to get back your money.This does not include electricity costs or equipment costs (more on this below).When purchasing mining hardware, you will want to look at these metrics: Th/s and W/GH.Th/s, or sometimes Gh/s, measures a miner’s terahashes (Th/s) or gigahashes (Gh/s) per second and is called hash rate.A higher hash rate means a more powerful miner.You can use this simple calculator from Bitcoin Wisdom to determine how much money an amount of hash power will earn per month.Hash power is not the end all for determining good miners, though.Miners use massive amounts of electricity.You want a miner that has both a high hash rate and uses the electricity provided efficiently.W/GH is the metric used to display a miner’s efficiency.The Antminer S7 is also the most efficient miner available on the market, with 0.25 W/GH.

Consider that the previous version of the S7, the S5, had an efficiency of just 0.51 W/GH.That means the S5 uses twice as much electricity per hash as the S7.Buying a miner that has a low W/GH and also has good hash power is the key for any profitable mining operation.Miners generate heat, and also need to be supplied with electricity.Unless you already have the needed parts, you will likely need to purchase cooling fans and power supplies.Electricity costs can make or break any mining operation.A monthly electric bill means monthly costs on top of the upfront cost of the hardware.China’s cheap electricity is one reason that nearly 60% of the Bitcoin network’s hashing power is located there.In the USA, for example, most mining hardware is run in Washington State, where there is cheap hydroelectricity.Venezuela’s crisis and cheap electricity has also made Bitcoin mining extremely profitable there.Don’t discount electricity as a cost.It can make or break your mining operation.Creative miners in cold areas can use the heat generated by miners to heat their houses in the winter.

If the heat generated by miners will partly replace your normal heating costs, it is one way to save money and improve your chances of profitability.Miners in cold areas also have an advantage because they may not need to use extra fans to cool the hardware.The Bitcoin mining difficulty makes sure that Bitcoin blocks are mined, on average, every 10 minutes.A higher difficulty is indicative of more hash power joining the network.As you would expect, more hash power on the network means that existing miners then control a lower percentage of the Bitcoin network hash power.The image above shows the network hash power over the last 2 years.From September 2015 to February 2016, the network hash rate tripled.That means any miner who added no additional hardware to his farm would earn about 33% less bitcoins.Hash rate and network difficulty are external factors that should be accounted for.It’s impossible to know difficulty months in advance.However, pay attention to advances in mining technology and efficiency to get a better idea of how the hash rate and difficulty may look down the line.

Bitcoin’s price is volatile and can’t be predicted.You may calculate your profitability with a Bitcoin price of $500, but it won’t be accurate if the price drops to $300 the next day.Be prepared for price movements and understand that the Bitcoin price is a factor that you cannot control.The Bitcoin block reward is at least one factor that is predictable.Every 4 years, the amount of bitcoins rewarded in each block is cut in half.The reward started at 50 bitcoins per block, and is now 25 bitcoins per block.In July 2016, this reward will fall to just 12.5 bitcoins per block.Each block reward halving cuts miners’ shares of bitcoins in half.Miners can, however, see similar incomes after a reward halving if the fiat price of Bitcoin doubles.Use a Bitcoin mining calculator to input your hardware information and electricity costs.This will give you a much better idea on your overall potential to run a profitable mining farm.Remember, however, that some factors like the Bitcoin price and mining difficulty change everyday and can have dramatic effects on profitability.