Auto · 8 calculators

Auto Calculators

Q: Do the loan tools include tax and fees?

The Auto Loan calculator lets you add sales tax and a trade-in so the monthly payment reflects the real out-the-door cost, not just the sticker price.

Q: Do you store the numbers I enter?

No. Every calculation runs entirely in your browser — the figures you type are never sent to or stored on a server.

Work out what a car really costs to buy and run — loan and lease payments, affordability, fuel economy, and mileage, all free.

Jump to Loans & cost Fuel & efficiency

Loans & cost

Auto Loan Calculator

Monthly car payment with tax and trade-in.

Lease Calculator

Monthly lease payment for a vehicle.

Car Affordability

How much car your budget supports.

Total Cost of Ownership

True cost including fuel, tax, and depreciation.

Fuel & efficiency

MPG Calculator

Miles per gallon from distance and fuel.

Gas Mileage Calculator

Track your real-world fuel economy.

Fuel Cost Calculator

Cost of a journey by distance and price.

Mileage Calculator

Reimbursement or distance between points.

About our auto calculators

A car is one of the bigger things you will pay for, and the sticker price is only part of it. These tools cover both the financing and the running costs so you can compare options with the full picture.

Every tool here is free, works instantly in your browser, and never stores the numbers you enter. They give reliable results for everyday use — treat anything high-stakes as a starting point and double-check with a professional.

Frequently asked questions

Are these auto calculators free?+

Yes. Every auto calculator on OnlineCalculators.com is completely free, with no sign-up, account, or app required.

Do the loan tools include tax and fees?+

Do you store the numbers I enter?+