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Car calculators
Every tool you need to plan a car purchase — from the monthly payment to whether you should lease at all. All include U.S. state sales tax and fees.
Monthly payment calculator
Full amortization with state sales tax, trade-in equity, and dealer fees.
Affordability calculator
Enter your monthly budget and see the max car price you can afford.
Refinance calculator
Compare your current loan to a new rate and see savings and break-even.
Lease vs buy calculator
Put the same car in a lease and a loan, compare total cost over the same term.
Know the numbers before you shop
- 2026 state car sales tax rates — the rate your state applies
- Average auto loan APR by state — where rates run high
- Auto loan rates by credit score — what your APR will be
- State-by-state tax & fee guides — including trade-in rules