Loan Repayment Calculator

What Is a Loan Repayment Calculator?

A loan repayment calculator is an online financial tool that estimates how much you may need to pay towards a loan each month. It uses the amount borrowed, annual interest rate and repayment term to calculate an estimated regular payment.

The calculator can also show the total interest and total amount repaid over the selected term. An optional monthly overpayment allows you to estimate how making additional payments could reduce the time needed to repay the loan and the amount of interest charged.

Why Use Loan Repayment Calculator?

Understanding the potential cost of borrowing can make it easier to compare different loan amounts, interest rates and repayment periods before making a financial decision.

How to Use the Loan Repayment Calculator

Enter the basic details of the loan you want to assess, then calculate the estimated repayment cost.

1. Enter the loan amount — Enter the amount you intend to borrow in pounds.
2. Enter the interest rate — Enter the annual interest rate as a percentage.
3. Enter the repayment term — Enter the number of years over which you plan to repay the loan.
4. Add an optional overpayment — Enter an additional monthly amount if you want to estimate how regular overpayments could affect the loan, then select Calculate repayment.

Loan Repayment Calculator for Monthly Payments

A loan repayment calculator can help estimate the monthly cost of a standard amortising loan before you apply for finance or agree to borrowing. By entering the loan principal, interest rate and repayment period, you can see how different borrowing scenarios may affect your monthly budget and the overall cost of the loan.

The calculator assumes that the interest rate remains constant and that payments are made monthly. This makes it useful for comparing scenarios such as a smaller loan with a shorter term, or a longer term with lower monthly payments but potentially higher overall interest.

How Loan Repayments Are Calculated

For a standard repayment loan, the calculation uses the original loan amount, the monthly interest rate and the total number of monthly payments. The interest rate is converted from an annual percentage into a monthly rate, while the repayment term is converted from years into months.

How Loan Overpayments Can Reduce Interest

Making additional payments can reduce the outstanding loan balance more quickly. Because future interest is generally calculated using the remaining balance, reducing that balance sooner can decrease the amount of interest charged over the life of the loan. The calculator estimates this effect by applying the additional monthly payment towards the outstanding balance.

Understanding Your Loan Repayment Results

The monthly repayment shown by this calculator represents an estimate for a loan with regular monthly payments and a fixed interest rate. The total repayment is the estimated amount paid over the full term, including the original amount borrowed and interest.

Actual borrowing costs can differ from these estimates. Lenders may charge arrangement fees, administration fees, early repayment charges or other costs. Variable, tracker or promotional interest rates may also change during the life of a loan. The calculator does not include these additional charges or future interest-rate changes.

For example, a £25,000 loan at 6% annual interest over five years produces an estimated monthly repayment of approximately £483.32 before any additional overpayment. The actual payment offered by a lender may differ depending on the product and its terms.

The results are intended for general information and comparison purposes and should not be treated as a personalised financial recommendation.

Frequently Asked Questions