A financial calculator is a specialized tool designed to perform various financial calculations quickly and accurately. These calculators can help users determine loan payments, investment growth, interest rates, and other financial metrics. They are commonly used by individuals, businesses, and financial professionals to make informed decisions about budgeting, saving, and investing. Many financial calculators are available in both physical and digital formats, including apps and online tools. Users can input specific variables, such as principal amount, interest rate, and time period, to receive instant results. Popular types of financial calculators include mortgage calculators, retirement calculators, and loan calculators.