There’s been a lot of HYPE on Hashflare lately but they only offer 1 year bitcoin mining contracts so why??? Well if you use the calculator over at coinwarz it will give you some interesting results!
As you can see above 10TH/s 1 year contract will cost you $1500. Hashflare takes 20% for maintenance etc. It will take roughly 74 days to make a return of investment so nearly 2 and half months, 9 and half months of profit!
You will have a passive income of $605.42 per month! $7,366 over the year depending on the value of bitcoin and the increase or decrease in difficultly of mining bitcoin. But still these results are incredible!