How to use Loan Calculator
- Enter loan amount, interest rate, and term.
- Review monthly payment and total interest.
- Adjust inputs to compare scenarios.
Worked examples
Concrete numbers and cases you can check against the tool above.
$15,000 auto loan at 7.5% for 48 months
Monthly payment on a standard amortizing loan is P Γ r(1+r)^n / ((1+r)^n β 1), with r = 0.075/12 and n = 48. That is about $362 per month. Total paid β $17,376, so interest β $2,376. A 60-month term lowers the payment but raises total interest.
When to use Loan Calculator
Monthly payment and total interest determine whether a loan is affordable. Estimating before talking to lenders sets realistic expectations and helps you compare term lengths without building amortization formulas by hand. Private browser math means salary and balance figures stay on your device while you explore scenarios.
Common use cases
- Compare 36- vs 60-month auto loan payments side by side.
- See how a half-point rate change affects monthly cost.
- Estimate interest paid over the full term before signing.
- Stress-test borrowing amounts against your real monthly budget.
Inputs and outputs
- Currency amounts, interest rates (%), loan terms
Privacy
This tool runs entirely in your browser. Your data never leaves your device β nothing is uploaded to our servers.
Frequently asked questions
- Does this include fees or insurance?
- Basic payment math focuses on principal and interest unless you add other costs in related fields.
- Is this a loan offer?
- No. It is an estimate. Lenders may use different compounding or fees.
- Are my numbers uploaded?
- No. Calculations stay in your browser.