Free Online Loan Calculator — Monthly Payment, Interest & Amortization Schedule
Use our loan calculator online to estimate your monthly loan payment, total repayment amount, and full interest overpayment before you apply at a bank. Whether you need a personal loan calculator, auto loan calculator, or mortgage calculator, this tool gives you a clear picture of borrowing costs in seconds — with no registration required.
Calculate monthly payments for any loan type
Enter the loan amount, annual interest rate, and loan term in years and months to get an instant result. The calculator supports two standard repayment models used by banks worldwide: annuity payments (equal monthly installments) and differentiated payments (declining installments where the principal share grows each month). Switch between them to see how your monthly payment and total cost change.
Full amortization schedule and total overpayment
After calculation, you receive a detailed amortization schedule — a month-by-month table showing payment amount, principal portion, interest portion, and remaining balance. This helps you understand how much of each payment goes toward interest versus principal, and what your total overpayment on a loan will be over the full term. Comparing schedules side by side is one of the most effective ways to evaluate whether a loan offer is truly affordable.
Loan calculator by interest rate and term
Even a small change in the interest rate or loan term can significantly affect your budget. A longer term lowers the monthly payment but increases total interest paid. A shorter term raises the installment but reduces overpayment. Our loan calculator by interest rate lets you model different scenarios — 5, 10, 15, 20, or 30 years — and find the balance between affordable monthly payments and minimum total cost.
Multi-currency support for international borrowers
The calculator works with 10 major world currencies: USD, EUR, GBP, JPY, CNY, CHF, CAD, AUD, INR, and SGD. This makes it useful for comparing loan offers from banks in different countries, estimating mortgage costs abroad, or planning cross-border financing without manual currency conversion.
Why a loan payment calculator matters before you apply
Banks evaluate your income, credit history, and debt-to-income ratio before approval — but you should evaluate the loan first. A free loan payment calculator shows whether a proposed installment fits your monthly budget, how much interest you will pay over the life of the loan, and whether early repayment could save you money. Use the results to compare offers from multiple banks, negotiate better terms, and avoid overborrowing.
Frequently Asked Questions
How do you calculate a monthly loan payment?
To calculate a monthly loan payment, divide the annual interest rate by 12 to get the monthly rate, then apply the standard annuity formula: Payment = Loan Amount × [r(1+r)^n] / [(1+r)^n − 1], where r is the monthly rate and n is the number of months. Our online loan calculator performs this automatically — enter the loan amount, interest rate, and term to get your monthly payment instantly.
Which loan is more profitable — annuity or differentiated payment?
Differentiated payments are usually more profitable in terms of total interest overpayment, because you repay principal faster and pay less interest over the loan term. Annuity payments are easier to budget because the monthly installment stays fixed, but the total overpayment on the loan is typically higher. Use our loan calculator to compare both payment types side by side for your specific loan amount and interest rate.
How can you find out the total overpayment on a loan?
Total overpayment equals the sum of all monthly payments minus the original loan amount. Our loan calculator shows total repayment and total interest (overpayment) immediately after calculation, along with a full amortization schedule where you can see how interest decreases month by month as the remaining balance drops.
How do you calculate a loan based on the interest rate?
Enter the loan amount, annual interest rate, and loan term into the calculator. The interest rate is the key variable — even a 0.5% difference can add thousands to your total overpayment. The calculator applies the rate to the remaining balance each month and builds a complete payment schedule showing how the interest rate affects every installment.
How does the loan term affect the monthly payment?
A longer loan term reduces the monthly payment because the principal is spread over more months, but it increases total interest paid. A shorter loan term raises the monthly installment but lowers the total overpayment. Adjust the term in years and months fields to see how the loan term directly affects your monthly payment and overall borrowing cost.
What income is required to get a loan approved?
Most banks require that your total monthly debt payments — including the new loan installment — do not exceed 40–50% of your net income. Calculate your monthly loan payment first, then divide your income by that amount to check affordability. If the payment exceeds 40% of income, consider a longer loan term or a smaller loan amount.
Can you repay a loan early without extra charges?
Early loan repayment rules depend on the bank and loan type. Many lenders allow partial or full early repayment without penalty after a certain period, while others charge a fee of 1–3% of the remaining balance. Check your loan agreement for early repayment terms. Our calculator helps you estimate how much interest you could save by shortening the loan term through early payments.
How do you calculate a mortgage yourself?
Mortgage calculation uses the same annuity formula as any other loan: enter the property price minus down payment as the loan amount, set the mortgage interest rate and term (typically 15–30 years), and select annuity payment type. Our mortgage calculator generates a full amortization schedule showing monthly payment, principal, interest, and remaining balance for every month of the loan.
What is better — reducing the loan term or lowering the monthly payment?
Reducing the loan term saves more on total interest overpayment but requires a higher monthly payment. Lowering the monthly payment by extending the term makes the loan easier to afford but costs more over time. The best choice depends on your budget: if you can comfortably afford a higher installment, a shorter loan term is financially better. Use the calculator to compare both scenarios with your actual loan amount and interest rate.
How does a loan calculator help you choose a bank?
A loan calculator lets you enter the same loan amount and term with different interest rates from competing banks, then compare total overpayment and monthly payment for each offer. This objective comparison reveals which bank provides the lowest total cost — not just the lowest advertised rate. Always compare the full amortization schedule, not just the headline interest rate.
Is this calculator accurate for real banks?
This loan calculator provides accurate estimates based on standard banking formulas for annuity and differentiated payments. Actual bank offers may differ due to origination fees, insurance, taxes, and special promotional terms. Use the results as a reliable baseline before requesting an official quote from a lender.
Can I use different currencies?
Yes. The loan calculator supports 10 major world currencies — USD, EUR, GBP, JPY, CNY, CHF, CAD, AUD, INR, and SGD — so you can calculate monthly payments and total overpayment in the currency of your loan agreement.