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Car Loan Refinance Calculator

Calculate your monthly car repayment savings from refinancing your car loan
​Updated 17 November 2023
  • Car loans can be expensive - refinancing can save a lot per month and help you repay the balance faster.
  • Our calculator shows you in seconds how much you can save.
  • To use the calculator, enter your current car loan balance, loan terms remaining (i.e. number of months) and the current interest rate. You then will enter in the refinanced amount, the loan term and interest rate.
  • The calculator will show your new payment, monthly savings (i.e. current loan vs refinanced car loan) and display your current/original payment.
  • You can click on Best Car Refinance Deals to see the latest offers.
Refinance Car Loan Calculator
Current loan
Original Loan Amount
Original Loan Term in Months
Current Interest Rate
New loan
Refinanced Loan Amount
New Loan Term in Months
New Interest Rate
Refinancing your car loan could save you:
New payment
Monthly savings
Original payment
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Disclaimer: This is a guide using standard assumptions to estimate your monthly car loan repayment cost. It excludes late fees, early repayment fees, account management fees and penalty interest for late repayments. It also excludes security registration and release charges (standard with some car finance companies). Before refinancing any car loan, ask the lender for the total cost of the borrowing and compare this to your existing loan agreement. 

This calculator assumes interest rates are fixed - some car finance companies offer floating interest rates.
Christopher Walsh
MoneyHub Founder
​MoneyHub's Top Car Finance Options - Avoid high interest rates and fees with our trusted lenders.
  • Our car finance comparison research highlighted three leading car finance companies that reliably and consistently offer fair interest rates to most borrowers and are active lenders.
  • We suggest contacting dedicated car loan specialist Simplify - their team has a proven track record of offering market-leading interest rates and terms.
  • We also suggest contacting car-focused lenders like MTF Finance - MTF offers branch-based lending in locations all over New Zealand.
  • Finally, low-fee personal lenders like Harmoney consistently offer car lending and are 100% online.
  • The more you compare, the better your chances of finding the best deal and financing your car for the lowest price.
  • Remember, the interest rate you agree to now makes a huge difference when you repay your car loan week after week.
  • Signing up for finance with a car salesperson is unlikely to be the best or most cost-effective option.
  • Advertising Disclosure: We may receive a commission if you take out a loan, but this does not influence our shortlist. Interest rates vary based on each borrower.
Our Trusted and Affordable Car Lenders Committed to Fast Quotes:

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Know this first:
  • The repayment amounts exclude any upfront fees and/or ongoing fees a lender may charge.
  • The interest rates below represent each lender's lowest rate. This is not necessarily the rate you will receive, and for this reason, we suggest considering your options carefully.

Enter Information

I want to borrow

How Pricing months

with the following repayment period:

Warning - add-on Insurances: Some car lenders may offer you Mechanical Breakdown Insurance (MBI) and/or Guaranteed Asset Protection Insurance (GAP) when you refinance a car loan. We do not believe these policies offer value-for-money or cost-effective protection for most people. Our guides to both of these insurance options explain what you need to know. You may be encouraged to buy MBI and/or GAP insurance, but they are not compulsory with any car loan. Our view is that buying add-on insurance makes a car loan more expensive.

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