Interest Calculator 📈 Simple Interest Calculator Principal Amount (P): Rate of Interest (R%): Period Unit: Day Week Month Quarter Half Year Year Duration: Result: Simple Interest (SI): Total Amount (Principal + Interest): Calculation Steps: 📈 Compound Interest Calculator Principal Amount (P): Rate of Interest (R%): Compounding Frequency: Daily Weekly Monthly Quarterly Half-Yearly Annually Duration in Years (T): Result: Compound Interest (CI): Total Amount (Principal + Interest): Calculation Steps: