Calculators
25 free car-cost calculators in three categories. All math runs in your browser. No accounts.
14 calculators
Financing
What the car really costs to borrow.
Loan payment, lease vs buy, what you can actually afford, and what extra payments save you.
Open category-
Auto Loan
Monthly payment, total interest, full amortization. -
Lease vs Buy
Total cost of leasing vs financing the same car. -
Car Affordability
How much car you can actually afford on your income. -
Auto Loan Early Payoff
Interest saved and months cut by paying extra. -
Auto Loan Refinance
Interest saved and months to break even on refi fees. -
0% APR vs Cash Rebate
Which manufacturer promo actually costs less. -
Cash vs Finance
Pay cash or take the loan — the honest break-even. -
Out-the-Door Price
Sticker plus tax, doc fee, and registration — the real total. -
Upfit Cost
What work equipment adds to the truck — and to the loan. -
Negative Equity
How much underwater you are, and what rolling it costs. -
Lease Buyout
Buy out at residual, or return — the equity decides. -
Early Lease Exit
Leave mid-lease, or ride it out — payments count too. -
Lease Payment
Monthly lease payment from cap cost, residual, money factor. -
Lease Mileage Overage
Projected excess-mileage bill at lease-end.
6 calculators
Running Costs
What it costs to keep it on the road.
Fuel, charging, the full cost of ownership, and business-mile reimbursement.
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Fuel Cost
Cost per trip and per year at your MPG and gas price. -
EV Charging Cost
Cost per charge, per mile, per year for an EV. -
True Cost of Ownership
Real $/year and $/mile after depreciation + everything. -
Cost Per Mile
All-in cost to drive one mile — fuel plus everything. -
MPG / Gas Mileage
Real MPG from a tank, plus cost per mile and per year. -
Mileage Reimbursement
Business-mile deduction at the current IRS rate.
5 calculators
The Car Itself
Depreciation, EV math, tires, towing.
What the car is worth over time, gas vs electric, and the physical-spec math most owners get wrong.
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Car Depreciation
Projected resale value year by year. -
Gas vs Electric Total Cost
Lifetime cost of an ICE car vs an equivalent EV. -
New vs Used Car
Multi-year cost of buying new vs a used equivalent. -
Tire Size
Dimension conversion + speedometer error. -
Towing Capacity & Payload
Whether your setup is within safe tow + payload limits.
Or scan the full list of 25 calculators with descriptions on a single page.