Mortgage & repayment calculators
Run the numbers. Plan with confidence.
These calculators are designed to give you a quick snapshot of what your repayments could look like, how interest affects your loan over time, and how small changes can make a big difference. Play around with the sliders, test different scenarios, and see how adjustments to your loan amount, interest rate, or extra repayments could impact your mortgage.
When you're ready, we can help turn those numbers into a real plan.
Estimate your loan repayments
This calculator helps you estimate what your regular mortgage repayments could be based on the loan amount, interest rate, and term. Use the sliders to adjust the figures and see how your repayments change in real time.
It’s a great way to get a feel for:
What different loan amounts might cost
How interest rates affect repayments
What repayment frequency works best for you
Keep in mind this is a guide only. Actual repayments may vary depending on the lender, loan structure, and your financial situation.
See the impact of extra repayments
Even small additional repayments can make a big difference over the life of a mortgage.
This calculator shows how increasing your regular repayments could reduce your loan balance faster, shorten your loan term, and potentially save thousands in interest.
Adjust the extra contribution amount to see how:
Your remaining balance changes over time
Your total interest paid could decrease
Your loan term could be shortened
For many homeowners, even a small weekly or monthly increase can significantly reduce the lifetime cost of their mortgage.
We work with New Zealand’s leading lenders
Because we work with a wide range of lenders, we can help match your situation with the right lending partner.
JKFL - Mortgage & Insurance