Auto Loan Payment and Interest Worksheet
Compare financing a vehicle under a fixed monthly repayment schedule. A larger down payment reduces the principal, while a longer term spreads payments over more months and can increase total interest.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
How to use this tool
Supply price, down payment, annual contract interest rate and term in months. The financed balance is price minus down payment. An APR that includes fees may differ from the interest rate required here.
Results and examples
The monthly figure includes principal and interest. Compare total interest as well as the monthly bill when choosing scenarios; the displayed purchase-plus-interest total is not an all-in dealer quotation.
Worked example
A USD 12,000 price less USD 2,000 down, financed at 0% for 20 months, gives USD 500 per month.
Limitations
- Sales tax, registration, insurance and dealer fees are not added.
- Variable rates, balloon balances and return-option products are not modelled.
Fields
| Field | Guidance and constraints |
|---|---|
| Vehicle price | Accepted range: 1–10000000 · Input step: 100 |
| Down payment | Accepted range: 0–10000000 · Input step: 100 |
| Annual interest rate | Accepted range: 0–50 · Input step: 0.01 |
| Term (months) | Accepted range: 1–120 · Input step: 1 |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Can I enter zero interest?
Yes. The financed principal is divided equally across the entered months.
Which currency is used?
Amounts are displayed in USD, including on the Korean page.
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You do not need to start over. Continue with the tool that fits your next step.
