Loan Interest Calculator
The Loan Interest Calculator helps you calculate the total interest and total repayment amount based on the loan amount, annual interest rate, and loan term. It is useful for personal loans, business loans, education loans, and financial planning.
Loan Interest Calculator
Results
💰 Total Interest
🏦 Total Repayment
Loan Interest Formula
The Loan Interest Calculator uses the simple interest formula to estimate the total interest payable on a loan based on the loan amount, annual interest rate, and loan term. It also calculates the total repayment amount by adding the interest to the original loan amount.
Interest = (Principal × Rate × Time) ÷ 100
Total Repayment = Principal + Interest
Where :
✅ Principal (P) – The original amount borrowed from the lender.
✅ Rate (R) – The annual interest rate charged on the loan.
✅ Time (T) – The loan duration in years.
✅ Interest – The total interest paid over the loan term.
✅ Total Repayment – The total amount repaid, including the original loan and interest.
How to Calculate Loan Interest
Follow these four simple steps to calculate the total loan interest and repayment amount accurately.
①
Enter Loan Amount
Enter the total amount borrowed from the lender before any interest is applied.
②
Enter Interest Rate
Enter the annual interest rate charged by the lender for your loan agreement.
③
Enter the Loan Term
Enter the total loan duration in years to calculate the overall interest payable.
④
View Your Results
View the total interest payable and the complete repayment amount instantly after calculation.
Where Is Loan Interest Used?
Loan interest calculations help borrowers estimate borrowing costs, compare loans, and plan repayments more effectively.
🏠
Home Loans
Estimate the interest payable on mortgages and home financing before borrowing money.
🚗
Auto Loans
Calculate borrowing costs for new and used vehicle financing over different loan terms.
🎓
Student Loans
Estimate education loan interest and the total repayment amount after graduation.
💼
Business Loans
Calculate interest expenses for business financing, and working capital requirements.
💳
Personal Loans
Compare personal loan offers and understand the total borrowing cost before applying.
🏦
Financial Planning
Plan future repayments and compare loan options to make better financial decisions.
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Frequently Asked Questions
Find answers to the most common questions about loan interest, repayment amounts, and borrowing costs.
Loan interest is the additional amount charged by a lender for borrowing money over a specific period.
Multiply the loan amount by the annual interest rate and loan term, then divide the result by 100.
Interest = (Principal × Rate × Time) ÷ 100
Total repayment is the original loan amount plus the total interest payable over the loan term.
Yes. You can enter different interest rates and loan terms to compare borrowing costs easily.
Yes. It can estimate interest for personal, business, education, vehicle, and other simple-interest loans.
This calculator uses the simple interest formula to estimate the total interest and repayment amount.
Yes. Our Loan Interest Calculator is completely free and instantly calculates loan interest and total repayment.