Flat-rate interest, calculated instantly.
Compute flat-rate simple interest earned on savings deposits or personal loans. Calculate principal growth and total interest payouts.
Where: SI is simple interest earned; P is principal balance; R is annual rate percentage; and T is time duration in years.
Simple interest applies a fixed annual percentage strictly against original principal capital. Interest earned in prior years does not alter the calculation base.
Simple interest is commonly used for short-term personal loans, auto financing agreements, agricultural loans, and basic fixed-period notes.
Over short durations, simple and compound returns remain close. However, over multi-year horizons, compound interest far outpaces simple interest accumulation.
No, simple interest stays constant every year provided the principal, interest rate, and time duration remain unchanged.
Total repayment equals original borrowed principal plus total accumulated simple interest (Amount = P + SI).
Yes, convert months to years by dividing monthly tenure by 12 (e.g. 18 months = 1.5 years) before applying the formula.