Simple Interest Calculator
Quickly calculate the interest earned or payable on your principal amount.
Total Simple Interest:
What is Simple Interest?
Simple interest is a quick and easy method of calculating the interest charge on a loan or the profit on an investment. Simple interest is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments.
The Formula
The standard formula used for these calculations is:
SI = {P\times X R\times X T}/{100}
Where:
P = Principal Amount (The initial sum of money)
R = Annual Interest Rate (in percentage)
T = Time Period (in years)
Simple vs. Compound Interest
While simple interest is calculated only on the principal amount, compound interest is calculated on the principal plus any accumulated interest. For long-term savings, compound interest usually yields much higher returns, whereas simple interest is common for short-term personal loans and car loans.