Australian decision tools

Make the number useful.

Calculate the real outcome of a pay rise, job offer, business price or rental decision—not just the easiest formula.

Use a decision tool Browse all calculators →

Take-home pay Compare jobs Product pricing Rent GST Refinance HELP pay rise Break-even ROAS

Flagship calculators

Start with the decision

Work & PayTake-Home Pay ChangeSee what a salary change may actually add each week and month.CompareJob Offer ComparisonCompare salary, super, bonus, leave and recurring work costs.Small BusinessSole Trader Hourly RatePrice non-billable time, expenses, tax, super and risk into the rate.PricingTrue Product PricingBuild a price after GST, ads, fulfilment, fees and returns.PropertyInvestment Property ROIInclude vacancy, rates, management, insurance, repairs, repayments and selling costs.Everyday MoneyRent & Moving CostsCheck weekly cash flow and the real upfront amount needed to move.All calculatorsBrowse the Full LibraryExplore fitness, nutrition, health, finance and conversion calculators, plus guides and downloads.

Australian decision tools

Compare the costs most calculators leave out

Read the supporting guides →

ContractorContractor Rate vs Employee Salary CalculatorCompare employee salary, super and paid leave with a contractor rate after unpaid time, expenses, super and risk.HELPHELP Debt & Pay-Rise Impact CalculatorSee how Australian tax and 2026–27 HELP repayments change the take-home value of a pay rise.RefinanceMortgage Refinance Break-Even CalculatorCompare repayments, fees, cashback, break-even timing and total interest before refinancing.MortgageMortgage Offset vs Extra Repayments CalculatorCompare ordinary savings, an offset account and direct extra repayments side by side.Parental leaveParental Leave Income Planner AustraliaMap government PPL, employer leave, partner income, unpaid weeks and the savings buffer needed.EcommerceEcommerce Profit & Break-Even ROAS CalculatorCalculate contribution profit, returns-adjusted CAC, break-even ROAS and target ROAS after GST and fees.

New premium Excel workbooks

Take the calculation into a complete plan.

Use detailed workbooks for business finance, personal finance and property investment. Save assumptions, compare scenarios and keep a reusable file instead of starting again each time.

Business Finance and Profit Planning Bundle cover

Business Finance & Profit Planning BundleThree workbooks for pricing, GST, profitability and ecommerce decisions.A$45 Save A$12View bundle →

Personal Finance Planning BundleThree workbooks for budgeting, debt payoff, job offers and net worth.A$35 Save A$10View bundle →

Property Investment Planning Bundle cover

Property Investment Planning BundleThree workbooks for ROI, mortgage strategies and rental records.A$45 Save A$12View bundle →

Browse all workbooks Compare the three bundles →

Calculator categories

Explore calculators by topic

Salary & employmentWork & PaySalary changes, job offers, super structure and real work costs.Pricing & profitabilitySmall BusinessSole-trader rates, product pricing, margins, GST and break-even.Household & propertyEveryday MoneyProperty ROI, rent, moving, savings, loans and household affordability.Training & performanceFitnessTraining, performance, pace and calorie-burn tools.Food & intakeNutritionCalories, macros, protein, caffeine and food planning.Health estimatesHealthBody composition, BMI, sleep, water and general estimates.Money & percentagesFinanceGST, interest, repayments, pricing and percentage tools.Units & measurementsConversionsMetric, imperial, cooking, temperature and unit conversions.

More than a single formula

A formula is easy to copy. A useful decision tool has to show the costs and assumptions people usually forget. The take-home pay calculator separates a gross salary change from spendable cash. The job-offer tool handles inclusive and plus-super packages. The hourly-rate tool accounts for non-billable time. The product-pricing tool solves around GST, fees, returns and advertising. The rent tool shows both weekly cash flow and upfront moving cash.

These are still estimates. The difference is that the estimate is attached to a decision, not presented as a magic answer. Each flagship page explains what is included, what is left out and which official Australian source should be checked when the stakes are higher.

Frequently asked questions

What kinds of calculators are available?

The site includes Australian work, pay, small-business, household and property tools, along with fitness, nutrition, health, finance and unit-conversion calculators.

What makes the decision tools different?

They combine related costs and assumptions in one workflow, so the result is easier to use for a real decision.

Are tax and super results exact?

No. Tax and super tools state their assumptions and link to official sources. Results are planning estimates, not tax, payroll, legal or financial advice.

Can I save calculators and results?

Yes. Save calculators for quick access and save result snapshots when you want to compare scenarios later.