Auto Loans

Auto Loan Comparison Calculator

Compare two or three car financing offers side-by-side to evaluate interest rates, loan terms, monthly payments, and total borrowing costs.

What this calculator does

The Auto Loan Comparison Calculator estimates your result instantly from the values you enter, using standard auto loans formulas. Compare two or three car financing offers side-by-side to evaluate interest rates, loan terms, monthly payments, and total borrowing costs. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate for planning rather than financial advice.

About Auto Loan Comparison Calculator

The Auto Loan Comparison Calculator allows car buyers to compare up to three distinct financing offers (e.g. Bank vs. Credit Union vs. Dealership 0% APR rebate) side-by-side.

Formula & Mathematical Calculation

Total Loan Cost = ( Monthly Payment × Term ) + Down Payment + Fees - Cash Rebate

Calculation Example

Rebate vs. Low APR: $30,000 Car. Offer A (0.9% APR, no rebate) = $511.64/mo ($30,698 total). Offer B ($2,500 cash rebate @ 4.9% APR) = $531.05/mo ($29,363 total). Offer B with rebate saves $1,335 overall!

Key Benefits

  • Direct side-by-side comparison of up to 3 auto loan offers
  • Evaluates Cash Rebate vs. Low APR financing promotions
  • Compares bank pre-approvals against dealership financing
  • Identifies lowest total lifetime cost
  • 100% free car shopping tool

How to Use this Calculator

  1. Enter Vehicle Purchase Price
    Input vehicle price and down payment.
  2. Enter Loan Option 1 (Bank/Credit Union)
    Input APR and term.
  3. Enter Loan Option 2 (Dealer Promotion/Rebate)
    Input APR, term, and cash rebate.
  4. Compare Options
    Click Calculate to view full side-by-side comparison.

Assumptions & Limitations

What the calculation assumes

  • Every value you enter is treated as an exact, known amount.
  • Rates and contributions are assumed to stay constant for the whole period unless the form asks for them separately.
  • Results use standard financial formulas and ignore fees, penalties and promotional terms that are not entered above.
  • Inflation, tax changes and market volatility are not modelled unless a field for them is provided.
  • Amounts are unit-agnostic: results are returned in the same currency you enter.

What it does not cover

  • Auto Loan Comparison Calculator produces estimates for education and planning, not a quote, offer or professional advice.
  • Real-world outcomes differ when fees, taxes, rounding rules or provider-specific terms apply.
  • Local regulations and tax rules vary by country and change over time; verify current rules for your jurisdiction.
  • Figures are only as accurate as the inputs you supply — check them before acting on the result.
  • For decisions with lasting financial impact, confirm the numbers with a qualified professional.

Frequently Asked Questions

Not always. If the cash rebate is substantial, taking the rebate and financing at a competitive credit union rate often results in a lower total cost than 0% APR on full sticker price.

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Next step: browse the full Auto Loans calculators or read the related guides for context before you decide.