How to use
- Enter the values in the calculator above.
- Review the result and the breakdown before copying it.
- Change one value at a time when comparing scenarios.
No sign-up is required, and the calculation runs in your browser.
Loan calculator
Estimate monthly payment and total interest for a loan.
Input
Result
Inputs are processed in your browser and are not sent to the server. Privacy by design
Important note
This result is an estimate for quick comparison and is not financial, tax, or legal advice. Actual amounts can differ by institution, contract, tax rule, fee, and rounding method.
Loan Calculator How to use
Formula and logic
For equal monthly payments, monthly payment = principal × monthly rate × (1 + monthly rate)^months ÷ ((1 + monthly rate)^months − 1). The tool is useful for comparing loan amount, interest rate, and term before speaking with a lender.
Practical examples
- A 300,000 loan at 4.5% for 30 years is roughly 1,520 per month before fees and insurance.
- Shortening the term usually raises monthly payment but reduces total interest.
- A lower interest rate can reduce both monthly payment and lifetime interest.
Frequently asked questions
Is this an official loan quote?
No. It is an estimate. Actual payments depend on lender policy, fees, insurance, compounding, and local rules.
What is the difference between principal and interest?
Principal is the borrowed amount. Interest is the cost paid to borrow that amount.
Can I compare different terms?
Yes. Change the years to compare monthly payment and total interest.
Does it include prepayment?
No. Prepayment rules and penalties differ by lender, so check your contract.
Notes and limits
This tool is designed for quick planning and comparison. Real prices, taxes, bank terms, platform fees, and local rules can differ, so use the result as a practical estimate before checking the final source of truth.
You may also need
FAQ
The tool runs in your browser, updates results instantly, and lets you copy the output when you need it.