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Car Loan Calculator
Monthly payment, total interest, and a full amortization schedule. Adjust rate, term, and down payment in real time.
Calculate →MPG & Fuel Cost Calculator
Real-world fuel efficiency, trip cost, monthly fuel budget, and cost per mile — updated on every keystroke.
Calculate →Car Depreciation Calculator
Year-by-year residual value, total loss at any age, and a visual value curve for your vehicle.
Calculate →Complete Catalog
All calculators.
Monthly payment, total interest & amortization schedule.
Find the max car price that fits your budget.
True all-in cost over your ownership period.
Side-by-side comparison with breakeven analysis.
See your savings from refinancing to a lower rate.
How much to put down and its effect on payment.
Out-the-door price with tax, fees & trade-in.
Interest saved by making extra payments.
Lower monthly payment with a lump sum at the end.
Invoice vs MSRP vs offer — the real margin.
Real-world MPG, trip costs, and monthly fuel budget.
Total fuel cost, driving time, and stops for any trip.
Daily, monthly & annual cost of your commute.
Annual CO₂ emissions from your driving habits.
How far a full — or partial — tank takes you.
When a hybrid pays back its price premium.
Annual savings switching to an electric vehicle.
Real-world range by battery, temp & driving style.
Time to charge on L1, L2, or DC fast charging.
Federal clean-vehicle credit you may qualify for.
Cost to charge at home or a public station.
Payback period on a Level 2 home charger.
HP from torque and RPM using the standard formula.
Diameter difference, speedometer error, and more.
Estimated 0-60 time from HP, weight, and drivetrain.
Estimated ET and trap speed from HP & weight.
Total stopping distance at any speed and condition.
Final drive ratio and RPM at any cruising speed.
Power gain from turbo or supercharger boost.
HP per ton, lb per HP, and a 0-60 estimate.
Next due date and mileage for your oil type.
Estimated months until tire replacement.
Miles remaining based on current pad thickness.
Annual maintenance cost estimate for your vehicle.
When your timing belt is due, by miles & years.
Should you do the job yourself or pay a shop?
Every automobile calculation
you'll ever need.
51 free calculators for car buyers, owners, enthusiasts & fleet managers — from loan payments and MPG to towing, EV range, and depreciation.
Built for the US car market.
Every calculator ships with US defaults — no unit-switching, no guesswork. Just accurate answers for how Americans buy, drive, and sell cars.
US rates & state taxes
Loan APRs, out-the-door sales tax, and IRS mileage rates built in.
Miles, gallons & MPG
Imperial units throughout, with metric conversions where you need them.
100% private
Every calculation runs in your browser. Nothing you type is ever sent to a server.
Always free
No sign-up, no paywall, no limits. New calculators added regularly.
About the tools
Free car calculators for every automobile decision
AutoCalc Pro is a complete suite of free car calculators built to answer the money and math questions that come up when you buy, own, drive, and sell a vehicle. Instead of hunting across a dozen different sites, you get 51 automobile calculators in one place — each one instant, private, and free, with no sign-up and no paywall. Every tool runs entirely in your browser, so the numbers you enter never leave your device.
Car loan and financing calculators
The most-used tool on the site is our car loan calculator(also known as an auto loan or car payment calculator). Enter your vehicle price, down payment, interest rate (APR), and loan term, and it instantly shows your monthly payment, total interest, and a full amortization schedule. Pair it with thecar affordability calculator to work out how much car you can realistically buy on your income, the down payment calculator to see how a larger deposit lowers your monthly cost, and thelease vs buy calculator to compare leasing against financing over the same period. Refinancing an existing loan? Thecar refinance andearly payoff calculators show exactly how much interest you can save.
Fuel, MPG, and running-cost calculators
Owning a car costs far more than the sticker price. OurMPG and fuel cost calculator turns your mileage and local gas price into a real cost per mile and monthly fuel budget, while theroad trip andcommute cost calculators help you plan longer journeys. The total cost of ownership calculator brings fuel, insurance, maintenance, taxes, and depreciation together into a single yearly figure — the number that really matters when comparing two cars.
Depreciation and resale value calculators
A new car can lose a large share of its value in the first few years. Thecar depreciation calculator projects year-by-year residual value so you can see what your vehicle will be worth when you sell it. Thetrade-in,negative equity, andmileage-vs-value calculators help you time a sale, understand whether you owe more than the car is worth, and estimate how mileage affects resale price.
Electric vehicle and performance calculators
Thinking about going electric? TheEV vs gas savings calculator compares fuel and charging costs over your ownership period, and the EV range,charging time, andtax credit calculators cover the rest of the switch. Enthusiasts can reach for the horsepower,0-60 mph,quarter-mile, andpower-to-weight calculators to understand performance in plain numbers.
Why choose AutoCalc Pro
Every calculator ships with US defaults — dollar amounts, miles, gallons, MPG, IRS mileage rates, and state sales tax — so there is no unit-switching or guesswork. Results update on every keystroke in under 50 milliseconds, and because everything is client-side, the tools work offline and keep your financial details completely private. Whether you are a first-time buyer comparing loan offers, an owner budgeting for the year ahead, an enthusiast chasing numbers, or a fleet manager tracking mileage reimbursement, AutoCalc Pro gives you accurate, instant answers for free. Browse all 51 car calculators above and start calculating in seconds — no account required.