We've all used them, or at least considered it: the online profitability calculators for mining. They promise to give us a clear picture of potential earnings, but how accurate are they really? With fluctuating crypto prices, network difficulty adjustments, and the ever-changing landscape of hardware, can these tools truly provide a reliable estimate? I'm curious to hear about your experiences. Have you found them to be accurate in your own mining ventures? What factors do you think these calculators often overlook? Let's share our insights and explore the pros and cons of relying on these tools for making informed mining decisions.