Enter the net cash needed, fees, rate and frequency. Compare the same usable amount and include the remaining balance when checking costs at an earlier date.
Plan and track
Build a monthly budget with your chosen reserve. Keep forecasts separate from actual dated transactions, then compare a daily simple-interest model with the same measure on your statement.
Keep a useful record
Save a named study in this browser, restore a JSON backup or download an Excel workbook with results and editable formulas. The Learn tab explains assumptions and limits.
Loan calculator questions
What does this loan calculator include?
Estimate level payments or constant-principal repayments, compare two offers using the same net cash received, plan monthly or one-time extra payments and inspect the remaining balance. The dashboard links the forecast to a monthly budget and a separate record of actual payments.
How is the payment calculated?
For a level-payment loan, the periodic payment is P × r ÷ (1 − (1 + r)^(−n)), where P is financed principal, r is the periodic interest rate and n is the number of payments. With a zero rate it is P ÷ n. A $20,000 loan at a nominal 12% annual rate over 36 monthly payments has a base payment of about $664.29, before insurance or fees.
Can extra payments reduce the interest?
An extra principal payment reduces the balance used for later projected interest. Compare a shorter payoff period with recalculating the remaining payment. Results depend on your lender’s payment-allocation rules, prepayment conditions and actual posting dates.
Are fees and remaining debt included?
Enter upfront, deducted and financed fees separately, plus insurance per active payment. The usable cash amount stays consistent when comparing offers. A comparison at an earlier horizon includes remaining debt rather than treating an unpaid balance as savings.
Does changing the currency convert the loan?
No. Currency changes the display label and formatting. It does not convert amounts or apply country-specific credit rules. Enter all amounts in one currency and choose whether the quoted annual rate is nominal or effective.
Can I save my study or get Excel?
Save named studies locally in your browser or keep a JSON backup. Excel and Excel-compatible CSV exports are priced at US$1.99 per study export, but purchasing is not open yet. Twenty separate editable workbook products have three real image previews each; their sales are also not open.