From salary to a car price range
Salary-based rules of thumb answer a simple question: what share of income should go to a car? Because insurance and fuel are part of that share, this calculator subtracts them first, then converts what remains into the loan a payment could support.
Method
Car budget = Salary ÷ 12 × Share (10%, 15% or 20%)
Payment = Car budget − Insurance − Fuel − Other
Price = Payment × (1 − (1 + r)^−n) ÷ r + Down payment, with r = APR ÷ 12.
Worked example
On a $65,000 salary, gross monthly income is about $5,417. At 15% that is a $813 car budget; after $290 of insurance and fuel, about $523 is left for the payment. At 7% over 60 months with $4,000 down, that supports a price of roughly $30,387.
Choosing a tier
- 10% mirrors the transportation cap in the 20/4/10 rule of thumb.
- 15% is a middle planning point. 20% is labeled an upper guideline.
- None of these are universal standards; your own budget is the better guide.
Limitations
This is salary-only. For a check that includes rent or mortgage and other debts, use the full car affordability calculator. To see depreciation and maintenance on a specific car, try the true cost of ownership calculator.