INVESTING CALCULATORS

Stock Valuation Calculator - Use this calculator to find the fair value of any stock. The calculator uses a DCF model to find a stock's intrinsic value within an estimated range. The best free stock valuation tool online.

Compound Interest Calculator - Use this calculator to estimate how much your savings or portfolio will compound over time.

CAGR Calculator - Use this calculator to work out the compounded annual growth rate on an investment using the starting and end values.

Term Deposit Calculator - Use this calculator to determine total interest earned over the life of a term deposit, and compare PIE deposits with regular RWT-deducted deposits.

Kiwisaver Calculator - Use this calculator to forecast what your Kiwisaver will grow to by the time you retire when invested in different funds.

Kiwisaver vs Aus Super Calculator - Use this calculator to see how your retirement will compare contributing to Kiwisaver versus Australian Super.

First $100K Calculator - Use this calculator to see how long before you reach your first $100K at specific levels of saving/investing. Based on my book The First $100K.

BUDGETING CALCULATORS

Retirement Calculator - Use this calculator to work out how much you will have to spend in retirement between your pension and Kiwisaver and other income sources.

Borrowing Power Calculator - Use this calculator to work out how much you can borrow based on your income and assets.

Student Loan Calculator - Use this calculator to work out how much you will need to repay on your student loan each year once you begin working or leave the country.

Working For Families Calculator - Use this calculator to work out how much Working For Families you will be entitled to at your income level.

PROPERTY CALCULATORS

Basic Mortgage Calculator - Use this calculator to work out repayments over the life of your mortgage, and the breakdown between interest and capital repayments.

Interest-only Mortgage Calculator - Use this calculator to work out how much more interest you'll pay when switching to an interest only mortgage.

Fixed vs Floating Mortgage Calculator - Use this calculator to work out how much you'll extra you will save or spend when switching from a fixed to floating rate mortgage and vice versa.

Offset Mortgage Calculator - Use this calculator to work out how much you'll save by switching to an offset mortgage.

Reverse Mortgage Calculator - Use this calculator to see how much you can realistically draw down through a reverse mortgage and how it affects your home ownership.

Mortgage Break Fee Calculator - Use this calculator to calculate if it will be worth it to break your mortgage and refinance at new rates or a new provider.

Rent vs Buy Calculator - Use this calculator before you buy a property to determine whether renting or buying will leave you with a higher net worth over the long term.

Rental Yield Calculator - Use this calculator to workout how the yield on a rental property.

TAX CALCULATORS

NZ Income Tax Calculator - Use this calculator to work out your individual income tax. Valid for NZ residents from 1 April 2025 onwards.

NZ PAYE Calculator - Use this calculator to work out how much your take home pay is. Enter your salary and it will adjust for Kiwisaver, PAYE, ACC and student loan repayments.

NZ Self Employed Income Calculator - Use this calculator to work out how much your take home pay is when you're self employed or a contractor in NZ.

NZ GST Calculator - Use this calculator to work out the GST content of any amount in NZ. Works for GST exclusive or inclusive amounts, or can produce amounts from a GST figure.

Australian GST Calculator - Work out the GST content of any amount in Australia. Works for GST exclusive or inclusive amounts, or can produce amounts from a GST figure.

MATCHED BETTING CALCULATORS

Basic Lay/Back Calculator - Use this calculator to work out how much to back/lay to convert an SNR bonus bet or a qualifying bet.

Multi EV Calculator - Use this calculator to work out the expected value of multi bets for matched betting. Works for same game multis and head to head multis up to 4 legs.