WhatToMine is a leading cryptocurrency mining profitability calculator that enables miners to evaluate earnings potential by inputting hardware specifications, electricity costs, and comparing multiple mining algorithms in real-time. The platform supports hundreds of mineable coins across diverse algorithms including SHA-256, Ethash, and Equihash, offering comprehensive profitability analysis for both individual miners and large-scale operations. Key features include dual mining support, pool fee adjustments, historical reward tracking, and exchange price customization, providing granular control for experienced users. WhatToMine distinguishes itself through free access without registration, extensive hardware database coverage, and reliable data accuracy across market cycles. While featuring a steeper learning curve than simplified alternatives, the platform delivers essential insights for optimizing mining operations and maximizing returns in competitive environments.