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🇳🇿 New ZealandNZDv1.0Active

NZ Mortgage Repayment Calculator

Free online NZ mortgage repayment calculator. Compare principal-and-interest and interest-only payments by weekly, fortnightly, or monthly frequency instantly.

Regional Rule Context

JurisdictionNew Zealand
CurrencyNZ$ (NZD)
Effective fromApr 18, 2026
Version1.0
Last reviewedApr 18, 2026
Next reviewApr 1, 2027
Source: Sorted mortgage calculatorView

New Zealand Rates and Rules

Compares amortising principal-and-interest repayments with interest-only repayments. Interest-only repayments cover interest only and leave the principal outstanding.

Enter Values

1 year30 years

Result

Enter values above and click Calculate to see your result.

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Planning estimate only. Actual lender repayments can change with interest rates, fees, repayment frequency, interest-only period length, and bank rounding.

Disclaimer: This calculator uses publicly available rules effective as of Apr 18, 2026 (version 1.0). Results are for informational purposes only. Always verify with official sources or a qualified professional. Last reviewed: Apr 18, 2026.

Formula

P&I=Lr1−(1+r)−n,Interest Only=Lr\text{P\&I} = \frac{Lr}{1-(1+r)^{-n}}, \quad \text{Interest Only} = Lr

The calculator uses the loan amount, interest rate, repayment frequency, and term to estimate amortising principal-and-interest repayments. Interest-only repayments cover interest for the period and leave the principal outstanding.

New Zealand FAQs

What does principal and interest mean?

Each repayment includes interest plus some principal, so the loan balance reduces over the mortgage term.

What does interest only mean?

Each repayment covers interest only. The original principal remains owing unless extra principal repayments are made.

Does this calculator include bank fees?

No. It estimates repayments before lender fees, rate changes, cashback arrangements, and other loan-specific charges.

Can I compare weekly and fortnightly repayments?

Yes. Choose weekly, fortnightly, or monthly repayment frequency to compare regular payment amounts.

Can I embed this NZ Mortgage Repayment Calculator on my website?

Yes. Click the "Embed" button at the top of this page to customize the size, colors, and theme, then copy the iframe code. Paste it into any HTML page, WordPress site, or CMS. It is completely free, requires no signup, and works on all devices. You can also visit our embed guide at calculory.com/services/embed-calculators for more details.

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