How to use it
- Enter the loan amount you plan to borrow.
- Input the annual interest rate from your lender.
- Set the loan term in years.
- Read the monthly payment, total interest and total of payments instantly.
What it does – The calculator takes your loan amount, annual interest rate and term to show the exact monthly payment, how much interest you’ll pay over the life of the loan, and the total amount you’ll have paid. Why it matters – Knowing these numbers helps you compare lenders, budget for mortgage expenses, and avoid surprise costs later. How to read the results – Monthly payment is what you’ll owe each month. Total interest is the extra cost of borrowing. Total of payments is the sum of all monthly payments, giving you the full price of the home financing. All results update instantly as you adjust the inputs, so you can experiment with different rates or terms before you commit. You can also save the numbers or share a link to discuss options with a realtor or loan officer. The tool works on any device, so you can check numbers while you’re on a phone, tablet, or computer.
Pro tips
- Round the loan amount to the nearest thousand for a quick sanity check.
- Add a small buffer (5‑10%) to the interest rate to see worst‑case payments.
- Use whole‑year terms; partial years can skew the monthly figure.
- Double‑check that the rate is annual, not monthly, before entering it.
Real-life examples
- First‑time buyer comparing three mortgage offers side‑by‑side.
- Refinancer evaluating how a lower rate changes monthly cash flow.
- Investor estimating payment on a rental property loan.
Case study
After entering a $250,000 loan at 4.5% for 30 years, Mark saw a $1,267 monthly payment and $206,000 total interest, helping him negotiate a lower rate and save $30,000 over the loan’s life.