Investment calculators are online tools that help individuals estimate the potential growth of their investments over time. By inputting variables such as initial investment amount, expected annual return rate, and investment duration, users can see how their money might grow. These calculators are useful for planning retirement savings, education funds, or any long-term financial goals. Many investment calculators also allow users to factor in additional contributions, inflation, and tax implications. This helps provide a more accurate picture of future wealth. Popular types of investment calculators include compound interest calculators, retirement calculators, and savings goal calculators.