Car Finance Comparison Calculator Australia

Work out your car loan repayment and the total cost of the car.

Car price$Deposit / trade-in value$Interest rate%Loan termyears

—per month

—total interest

—total cost of the car

Total cost of the car = all loan repayments plus your deposit/trade-in. Excludes on-road costs, insurance, and any balloon/residual payment some car loans include.

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About the Car Finance Comparison Calculator

This works out the fixed monthly repayment for a standard car loan, after subtracting a deposit or trade-in value from the car's price. It also shows the total interest you'll pay and the total cost of owning the car — repayments plus your upfront deposit.

How it works

The loan amount is the car price minus your deposit or trade-in value.
It uses the standard loan amortisation formula to find the fixed monthly repayment that pays off the loan exactly over the term.
Total interest is the total of all repayments minus the loan amount.
Total cost of the car is all repayments plus the deposit you put in upfront.

Assumptions and behaviour

Assumes a fixed interest rate for the full loan term.
Models a standard reducing-balance car loan with no balloon or residual payment at the end.
Deposit or trade-in value is treated as paid upfront, in full, and doesn't accrue interest.

Limitations

Doesn't include on-road costs, comprehensive insurance, establishment or monthly account fees, or balloon payments some novated leases and dealer finance products use.
Comparison rates published by lenders often include fees this calculator doesn't — always compare the lender's official comparison rate before deciding.

Privacy

The calculation runs entirely in your browser. Nothing is uploaded or stored.

Frequently asked questions

Is this car finance calculator free?

Yes — free, no sign-up, no limits, runs in your browser.

Does this include a balloon or residual payment?

No, it assumes a standard loan that's fully paid off by the end of the term. If your finance includes a balloon payment, your actual monthly repayment will be lower but you'll owe a lump sum at the end.

Should I use the advertised rate or the comparison rate?

For a true like-for-like comparison between lenders, use the comparison rate, which folds in most fees. This calculator uses whatever interest rate you enter, so plug in the comparison rate for the most realistic total cost.

Does trade-in value work the same as a cash deposit?

Yes, in this calculator both simply reduce the amount you need to borrow.

Is my data uploaded?

No. Everything runs locally in your browser; nothing is sent or stored.

Written by Lakshay Kumar(TechLakshay)

A QA Automation Engineer by trade, Lakshay's real passion is untangling complex problems into simple, working solutions — which is exactly why FreeMyTask exists. On Instagram, he channels that same instinct into helping 26,000+ content creators with SEO education, motivation, and hands-on query solving.

Last updated: August 22, 2026