Loan Interest Calculator
Work out total interest and repayment over the life of a loan. Free.
Loan interest calculator
See how much interest you pay over the life of a loan. Enter loan amount, interest rate and term to get total interest, total repayment and monthly payment. For illustration only.
Frequently Asked Questions
What is a loan interest calculator?
A tool that works out the total interest you pay over the life of a loan. Enter loan amount, interest rate and term to see total interest, total repayment and monthly payment.
How is loan interest calculated?
For a repayment loan, each payment includes interest and principal. Total interest = (monthly payment × number of payments) − loan amount. The calculator uses the standard amortising formula.
Is the loan interest calculator free?
Yes. Free to use. For illustration only.
Does it show monthly payment?
Yes. It shows monthly payment, total interest and total amount repayable.
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<p>Calculator: <a href="https://onlinecalculator.co.uk/finance/loan-interest-calculator" target="_blank">Loan Interest Calculator</a> - OnlineCalculator.co.uk</p>APA Style Citation:
OnlineCalculator.co.uk. (2025). Loan Interest Calculator. Retrieved from https://onlinecalculator.co.uk/finance/loan-interest-calculatorNote: This calculator is free to use and reference. No permission required for educational or commercial citation.