How to Calculate Bank Interest Rate on a Personal Loan

How to Calculate Bank Interest Rate on a Personal Loan

Jan 04, 2024 By LOANMANI.COM 52 Views Category: Financial Insights

Step 1: Gather Loan Information Collect all the necessary details regarding your personal loan. This includes the principal amount (the total loan amount), the interest rate, and the loan tenure (in months or years).

Step 2: Determine the Loan Period Decide on the loan tenure, whether it's in months or years. This will be used in the interest rate calculation formula.

Step 3: Convert the Interest Rate If your loan interest rate is quoted as an annual percentage rate (APR), convert it to a monthly interest rate by dividing it by 12 (if the loan tenure is in months) or by 1200 (if the loan tenure is in years).

Step 4: Calculate Monthly Interest Rate To determine the monthly interest rate, divide the annual interest rate (converted in Step 3) by 100.

Step 5: Use the Loan Interest Formula The most common formula for calculating loan interest is the Monthly Amortization Formula: Interest Payment = Principal Amount x Monthly Interest Rate

Step 6: Calculate the Total Repayment Amount To determine the total repayment amount, multiply the monthly interest payment (from Step 5) by the loan tenure (in months) or the number of installments.

Step 7: Add the Total Interest to the Principal The final step is to add the total interest amount calculated in Step 6 to the principal amount. This will give you the total amount you will repay over the loan period.


Calculating the bank interest rate on a personal loan allows you to estimate the total repayment amount and plan your finances accordingly. By understanding the loan interest formula and following the steps outlined in this blog post, you can make informed decisions and manage your personal loan efficiently. Remember to consider any additional fees or charges associated with the loan to get a complete picture of your financial obligations.

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