calculatorzone93 tools
New Zealand · 23 tools
Finance & Mortgages calculators
Compare loans and everyday money tools on total cost, then pick the calculator that matches the decision you are in. Figures use the inputs you enter; they are not a local-tax or lender quote.
Most used
Start here, then explore the groups below.
MortgageEstimate mortgage repayments, total interest and LTV from loan amount, rate and term. A planning figure — not a lender illustration.Loan RepaymentEstimate monthly loan repayments and total interest from amount, rate and term. Use your local currency; this is a planning figure, not a credit offer.Mortgage AffordabilityEstimate UK mortgage affordability from household income, monthly expenses, interest rate, and term. Stress-test borrowing before applying.Mortgage OverpaymentSee how extra monthly payments or a lump sum cut years and interest off a UK mortgage. Compare overpaying with keeping the cash.
Turn a money question into a monthly figure
Loans, mortgages and everyday money tools are most useful when you hold the amount, rate and term constant and compare total cost, not just the first payment. Run a second scenario whenever a fee, introductory rate or overpayment would change the outcome.
- Use the same principal and term when you compare products.
- Look at total interest and fees, not only the monthly amount.
- Re-run the numbers if the rate is promotional or the balance will change mid-term.
How the money tools connect
This hub brings together the finance tools currently available for NZ visitors. Start with the calculator closest to your question, enter figures that reflect your own situation, and compare more than one scenario when the decision is important.
The tools show the maths implied by the inputs. They do not replace provider quotes, professional advice, or country-specific rules that are not shown in the calculator. Review the assumptions beside each result before using it to make a decision.
More tools in this category23
Use these supporting calculators when you need a more specific comparison or a second opinion on the same decision.
MortgageEstimate mortgage repayments, total interest and LTV from loan amount, rate and term. A planning figure — not a lender illustration.Loan RepaymentEstimate monthly loan repayments and total interest from amount, rate and term. Use your local currency; this is a planning figure, not a credit offer.Mortgage AffordabilityEstimate UK mortgage affordability from household income, monthly expenses, interest rate, and term. Stress-test borrowing before applying.Mortgage OverpaymentSee how extra monthly payments or a lump sum cut years and interest off a UK mortgage. Compare overpaying with keeping the cash.Interest-Only MortgageEstimate UK interest-only mortgage payments and total interest. See the unchanged capital due at the end and compare a repayment mortgage.RefinancingCalculate potential savings from refinancing your mortgage to a lower rate. Compare your current monthly payment and total cost against a new refinancing deal.Early Repayment SavingsCalculate interest saved by making early or overpayments on your mortgage or loan. See how extra payments reduce your balance and shorten your repayment term.Fixed vs Variable MortgageCompare fixed-rate and variable-rate mortgages side by side. See total interest and monthly repayments under each option to choose the right mortgage type.Currency ConverterConvert amounts between major world currencies using current exchange rates. Find the equivalent in any currency for travel, business or international payments.DiscountCalculate the final price after a percentage or fixed discount. Enter the original price and discount amount to find out exactly how much you save.Simple InterestCalculate simple interest earned or owed on a loan or deposit. Enter the principal, annual interest rate and term in years to find the total interest amount.OvertimeCalculate overtime pay based on your hourly rate and hours worked beyond your standard week. Find out how much extra you earn for working additional hours.Mortgage AmortizationGenerate a full mortgage amortization schedule showing monthly principal and interest. See how your balance reduces over the entire term of your home loan.Personal Loan CostLoan Calculator works out the monthly repayment and total interest on a personal loan for New Zealand from the amount, APR and term.APR to APYConvert APR to APY to understand the true annual return when interest compounds. See how compounding frequency affects the effective yield on savings or loans.InflationCalculate how inflation erodes purchasing power over time. Enter an amount and time period to see what today's money was worth in the past or future.Home AffordabilityCalculate how much house you can afford based on income, deposit and outgoings. Estimate the maximum mortgage and property price that fits your finances.Deposit SavingsCalculate how long it will take to save a house deposit based on your monthly savings and interest rate.Credit Card PayoffCalculate how long it takes to pay off a credit card and see total interest costs.Debt ConsolidationCalculate potential savings from consolidating high-interest debts into a lower-rate loan.Cost of UniversityEstimate total university costs including tuition, accommodation, and living expenses.NZ MortgageCalculate your New Zealand mortgage repayments weekly, fortnightly, or monthly. See total interest and LVR. Uses current NZ interest rates with RBNZ lending context.KiwiSaver First Home WithdrawalCalculate how much KiwiSaver you can withdraw for your first home and estimate your First Home Grant. Requires 3 years of KiwiSaver membership to qualify.