Loan Interest Calculator – Calculate Monthly Payment, Interest, and Payback Time
The loan interest calculator computes monthly loan payments, total interest paid, and loan payback time. Enter loan amount, interest rate, and loan term or monthly payment.
The tool shows monthly amortization schedule and breaks down principal and interest portions in each payment. You can also calculate how much early payment saves in interest costs.
How Much Does a $200,000 Mortgage Cost Monthly?
A $200,000 loan for 25 years at 4% interest costs about $1,056 monthly. Total interest cost is approximately $116,800. At 3% interest, monthly payment is about $948 with total interest of $84,400. The loan calculator computes exact figures for any loan amount, rate, and term.
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Browse all tools →The loan interest calculator calculates total loan interest and monthly payments at different interest rates. An important tool for borrowers who want to understand the impact of interest on total loan costs.
Enter loan amount, interest rate, and loan term, and the calculator shows monthly payment and total interest costs.
- Calculate monthly payment for annuity or equal principal payment loans.
- See the total amount of interest paid over the entire loan term.
- Compare how different interest rates affect total costs.
The calculation is based on fixed interest – a variable rate loan may produce different results.
- Even a 0.5 percentage point difference in interest significantly affects long-term loans.
- With annuity loans, you pay more interest at the beginning and more principal at the end.
- A shorter loan term reduces total interest costs but increases monthly payments.
The interest calculator gives a mathematical result – actual loan costs may include additional fees.
- Reference rates (e.g., Euribor) change according to market conditions.
- Total loan costs are also affected by arrangement fees and account management costs.
- Check current interest rates from your bank before making decisions.