WhatToMine is a leading online calculator for assessing cryptocurrency mining profitability, widely used by both small and large-scale miners. The platform allows users to input specific hardware details such as hash rate, power consumption, and electricity costs to estimate potential earnings from mining various cryptocurrencies. It supports a wide array of hardware and coins, offering real-time profitability comparisons across multiple algorithms. The tool is noted for its extensive coin coverage and advanced customization options, including adjustable parameters for electricity costs, mining pool fees, and exchange price sources. Additional features include dual-mining options, historical reward charts, and web widgets for live data embedding. While praised for its comprehensive features, WhatToMine may present a steeper learning curve for beginners compared to alternatives like NiceHash and Minerstat. The platform is free to use and does not require registration, making it a trusted resource in the mining community.