Compound Interest Calculator Compound Interest Calculator The Compound Interest Calculator below can be used to compare or convert the interest rates of different compounding periods. Please use our Interest Calculator to do actual calculations on compound interest. Principal Amount Annual Interest Rate (%) Time (Years) Compounding Frequency Monthly Quarterly Semi-Annually Annually Currency USD - US Dollar ($) EUR - Euro (€) GBP - British Pound (£) INR - Indian Rupee (₹) JPY - Japanese Yen (¥) CNY - Chinese Yuan (¥) AUD - Australian Dollar ($) CAD - Canadian Dollar ($) Language English Español Français Deutsch हिन्दी 中文 日本語 Calculate Reset Future Value: Input Interest (APR): Output Interest (APY):