What is a Loan Calculator?
A loan calculator helps you estimate monthly payments and the total cost of a loan based on the principal amount, interest rate, and repayment term. It applies the standard amortization formula to show exactly how much you will pay each month, how much goes toward interest over the life of the loan, and the total amount you will repay. This is essential for planning housing loans, mortgages, car loans, or any other fixed-rate loan.
How to Use the Loan Calculator
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Enter the total loan amount (principal) you wish to borrow.
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Set the annual interest rate offered by your lender.
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Enter the loan term in years (e.g. 30 for a 30-year mortgage).
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Click Calculate to see your monthly payment and full cost breakdown.
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Use the pie chart to visualize the split between principal and interest.
This free loan calculator runs entirely in your browser — no data is sent to any server. Use it to compare mortgage options, plan your housing budget, or evaluate the true cost of any loan. Results assume a fixed interest rate and equal monthly payments (fully amortizing loan).
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