Mortgage Repayment Monthly Cost Calculator

Calculate your monthly mortgage payment, total interest and overall cost instantly and for free.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter the loan amount.
  2. Enter the annual interest rate.
  3. Enter the term in years.
  4. Read the monthly payment, total interest and total of payments displayed.

What it does – The calculator takes the loan amount, the annual interest rate and the loan term, then shows three key figures: the monthly payment you’ll owe, the total interest you’ll pay over the life of the loan, and the sum of all payments. Why it matters – Knowing the monthly cost helps you budget, compare lenders, and avoid surprises when the first payment arrives. How to read the results – The monthly payment is the amount you’ll pay each month. The total interest is the extra money paid because of borrowing. Adding both gives the total of payments, the full amount that will leave your bank account by the end of the term. You can also adjust any input to see how a lower rate or shorter term changes the numbers, making it a quick way to test scenarios before talking to a lender.

Pro tips

  • Include a small buffer for unexpected expenses when budgeting the monthly payment.
  • Round the loan amount to the nearest thousand for a faster mental check.
  • Compare results using both the nominal rate and the APR to see true cost.
  • Double‑check that the term is entered in years, not months.

Real-life examples

  • A first‑time homebuyer wants to know if a $300k loan fits their monthly budget.
  • A homeowner is evaluating refinancing options and needs the new monthly cost.
  • An investor compares two rental property loans to decide which yields higher cash flow.

Case study

Sarah entered a $250,000 loan at 4.5% for 30 years and saw a $1,266 monthly payment, $207,000 total interest and $457,000 total payments. By testing a 3.8% rate, she discovered a $1,176 payment, saved $90,000 in interest, and negotiated a better deal.

Frequently asked questions

How do I know if I can afford the monthly payment?
Compare the monthly payment figure to your net income and other recurring expenses; a comfortable margin is essential.
What’s the difference between total interest and total of payments?
Total interest is the extra cost of borrowing; total of payments adds that interest to the original loan amount.
Can I use the calculator for adjustable‑rate mortgages?
Enter the current rate and term to get a snapshot; for future rate changes, adjust the rate and recalculate.
Why does the calculator show a higher total than the loan amount?
Because interest accrues over the loan term, increasing the overall amount you’ll pay.
Do I need to include property taxes or insurance?
Those costs are separate; the calculator focuses only on principal and interest.