ROI.fyi is a website that offers a range of financial calculators and tools to help users understand the potential returns on their investments. The website provides a customizable ROI calculator that allows users to input different variables and get an accurate estimate of their potential returns. Additionally, the website offers loan amortization tools that can help users understand the costs associated with borrowing money or investing in a property.

The website's compound interest calculator is a powerful tool that can help users understand how their investments will grow over time, based on the interest rate, compounding frequency, and initial investment. This can help users plan for retirement, college education funds, and other long-term financial goals.

One of the unique features of ROI.fyi is its access to historical stock market and crypto data. This data can be incredibly valuable for investors looking to make informed decisions about their investments. By providing access to historical data, ROI.fyi helps users understand how different investments have performed over time and how they might perform in the future. This can be especially useful for individuals looking to diversify their portfolios and minimize risk.

ROI.fyi offers a range of tools and resources to help users make informed decisions about their investments. Whether you're a beginner or an experienced investor, ROI.fyi can help you achieve your financial goals.