It’s still possible to make a profit from Bitcoin mining if you have the right hardware and low enough electricity costs. However, today mining as a hobby is almost non-existent due to the fierce competition in this field. If you’re serious about mining you should conduct ample research before buying your first miner. Also, remember that revenue is NOT profit. You have to take into account additional mining expenses or missing expenses that weren’t entered into the calculator. (e.g. the cost of your mining hardware or the electricity it takes to run it and cool it down if necessary).