# Are miner builder/sellers profitability calculations true?

regarding to this question here How many hash calculation is needed to reach one BTC? , it takes about 1387 years with 1 TH/s power rate to reach 1 BTC.

So if someone has a machine with 53TH/s power rate and his machine works for 24/7, he can reach 1 BTC in 1387 / 53 = 26.1 years, and if he has 100 of that machine, he can gain 1 BTC in 95.5 days, or nearly 4 BTC per year.

So if the price of 1 BTC is about \$9500 today, he earns 9500 * 4 = \$38,000 per year(let's think the electricity consumption is free!). But in many websites like this https://www.asicminervalue.com/miners/bitmain/antminer-s17-pro-53th, it calculated the profitability of one same machine of \$4,333 per year and it will be \$433,000 per year for 100 machines!(It also considered the electricity power consumption).

How is it possible?

• It is not 1 BTC but the entire block rewards (12.5 BTC + tx fees). Assuming just the block subsidy that is \$38K*12.5 = \$475K, which is roughly in the ballpark of the number quoted. Aug 30 '19 at 13:08
• @UgamKamat: I think you can make your comment as an answer. I will accept it. Aug 31 '19 at 4:43