Guide / 01
When to use it
Use it to compare the monthly payment and total interest for a home or vehicle loan under a fixed-rate, equal-payment amortization assumption.
CALC / 028
Loan Payment Calculator
Estimate monthly payments, total interest, and repayment amount.
Private workspaceYour input stays on this device. HaloBench tools run in your browser whenever possible.
1,467,052monthly
228,138,548interest
528,138,548total
Reference calculation using equal monthly payments.
Guide / 02
Quick guide
- Enter the principal, nominal annual rate, and full term in months.
- Review the monthly payment, interest across the term, and total paid.
- Compare the same assumptions with a lender quote, including its fees, insurance, and repayment structure, before budgeting.
Check
Validate the result
Set the rate to zero; monthly payment should equal principal divided by months and total interest should be zero.
Limits
Know the limits
This is a reference for fixed-rate equal monthly payments. Variable rates, grace periods, prepayments, daily accrual, fees, guarantees, and insurance are excluded, so it is not a lender quote.
Reference
Input and output example
Use the same units and settings when comparing your result with this example.
- Example input
Principal 300,000,000 · annual rate 4.2% · 360 months- Result and interpretation
Monthly payment about 1,467,052 · interest about 228,138,548 · total about 528,138,548 Totals use the unrounded payment and exclude fees.
FAQ
Frequently asked
Will dividing the annual rate by 12 always match a bank's interest calculation?
No. The tool uses a standard monthly formula, while a lender may apply exact day counts, payment dates, fees, and its own rounding rules.
Does my data leave this device?
No. This tool is designed to process its working data in your browser. Advertising may load separately, but your tool input is never sent with it.