Car Budget Calculator – Find Your Ideal Car Payment
Free Car Budget Calculator to estimate your ideal car price, monthly payment & loan amount based on income, APR, tax & term. Try it now!
Modify the values and calculate an estimated car budget that fits your finances.
Your Financial Information
Vehicle and Loan Details
Estimated Car Budget
This calculator provides estimates for educational purposes only. Actual loan approval, interest rates, taxes, fees and insurance costs may vary.
This Car Budget Calculator uses the standard loan amortization formula — M = P[r(1+r)^n] / [(1+r)^n − 1] — to calculate monthly payments from your loan principal, APR, and term length. It reverses this formula to solve for your maximum affordable vehicle price based on income, expenses, insurance, and a target budget percentage.
FAQ:
It takes your monthly income minus expenses, applies your chosen budget percentage, subtracts estimated insurance, and uses the loan amortization formula in reverse to find the maximum loan principal you can afford at your given APR and term — then adds back your down payment and trade-in equity while accounting for tax and fees.
It uses the standard amortized loan payment formula, the same one banks and dealerships use to calculate car loan payments based on principal, interest rate, and loan term.
