HomeCalcs

Free mortgage & property calculators for New Zealand homeowners

13
Calculators
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NZ
Specific

Built for New Zealand

Know your numbers
before you make your move

13 free calculators covering every stage of the property journey — from buying your first home to managing your mortgage and growing your portfolio.

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NZ rates & rules
Instant results
INTEREST RATE 5.8% HOME EQUITY $320k +12% this year PROPERTY VALUE
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13
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NZ
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Property Owner Calculators

Tools for anyone who owns, rents out or is planning to sell property in New Zealand.

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True Cost of Selling

See exactly what you'll net after agent fees, legal costs and your mortgage payout.
Cost Breakdown
Gross Sale Price
Agent Commission
Legal Fees
Marketing
Moving Costs
Staging Costs
Total Selling Costs
Mortgage Payout
Net Proceeds
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Rental Yield Calculator

Calculate gross and net rental yield plus annual income after operating costs.
Gross Yield
Annual rent ÷ value
Net Yield
After all costs
Annual Net Income
Before tax
Deductions
Annual Gross Rent
Rates
Insurance
Maintenance
Property Management
Annual Net Income
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Interest Rate Stress Test

See how your repayments change if rates rise — before they do.
Repayment Comparison
Current Rate Repayment
Stress Test Rate
Stress Test Repayment
Extra per period
Extra per year
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Repayment Frequency Comparison

Compare weekly, fortnightly and monthly repayments — and see how much you save.
Frequency Comparison
FrequencyRepaymentTotal InterestTotal Cost
Weekly
Fortnightly
Monthly
Interest saved (weekly vs monthly)

First Home Buyer Calculators NZ

Practical calculators to help you plan, save and understand your buying power.

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KiwiSaver First Home Withdrawal Estimator

Estimate how much of your KiwiSaver balance you can use toward your first home.
Withdrawal Estimate
Current Balance
Minimum Retained ($1,000)$1,000
Estimated Withdrawable Amount
Enter your balance and years contributing to see your estimate.
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Deposit Progress Tracker

Know exactly when you'll hit your deposit target based on your current savings rate.
Progress Summary
Deposit Target
Current Savings
Gap to Target
Estimated months to goal
Estimated years to goal
Projected target date
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Borrowing Power Calculator

Get a rough estimate of your maximum borrowing capacity before you talk to a lender.
Max Borrowing
Estimated maximum loan
Required Deposit
At selected LVR
Max Purchase Price
Loan + deposit
Indicative Monthly Repayment
Indicative Weekly Repayment
This is a simplified estimate only. Lenders apply their own affordability assessments under CCCFA guidelines, using a higher test rate, specific living cost benchmarks and credit history. Always confirm with a mortgage adviser or lender.
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Legal and Due Diligence Cost Estimator

Understand the upfront costs beyond your deposit — before you go unconditional.
Estimated Costs
Lawyer Fees (conveyancing)
LIM Report
Builder's Report
Loan Registration Fee
Total Estimated Range
These are indicative estimates only. Actual costs vary by lawyer, region and property complexity. Always get quotes from your own solicitor before proceeding.

Mortgage Refinancing Calculators NZ

Tools to help you make smarter decisions when breaking, splitting or refixing your mortgage.

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Break Fee Estimator

Get a rough sense of what it could cost to break your fixed rate early.
Estimated Break Fee
⚠️ This is an approximation only. Actual break fees are calculated by your lender using their own wholesale rate data and methodology, and may differ significantly. Always get a break fee quote directly from your bank before making any decisions.
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Mortgage Split Calculator

Model the blended rate and repayments for a fixed/floating split structure.
Fixed Portion
Floating Portion
Blended Rate
Combined Repayments
Weekly
Fortnightly
Monthly
Annual Interest Cost
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Refix Comparison Tool

Compare up to three fixed terms and floating — and find the lowest-cost option over two years.
2-Year Interest Cost Comparison
Monthly Repayment Comparison
OptionRateTermMonthly Repayment2yr Interest
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Overpayment Impact Calculator

See how much time and interest you save by paying a little extra each period.
Time Saved
Off your loan term
Interest Saved
Total over life of loan
New Payoff Date
Original payoff date
Base repayment (selected frequency)
New repayment with extra
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Equity Unlock Calculator

Find out how much equity you could access for renovations, investment or other goals.
Current LVR
Usable Equity (80%)
Usable Equity (70%)
Property Value
Outstanding Mortgage
Total Equity (value − mortgage)
80% LVR ceiling
Accessible equity at 80% LVR
Usable equity is the amount you could potentially borrow against your property without exceeding a given LVR. Lenders will assess serviceability, credit and other factors before approving any equity release. This figure is an estimate only.