All calculators
26 calculators, each with the Australian assumptions used and when they were last checked.
Money & Tax
- GST CalculatorAdd or remove Australian GST from an amount.
- Salary CalculatorWork out your take-home pay after income tax, LITO and the Medicare levy for 2026–27, and convert salary into monthly, fortnightly, weekly and hourly pay.
- Superannuation CalculatorEstimate employer super contributions on your ordinary time earnings.
- Savings CalculatorSee how a savings balance grows with regular monthly deposits.
Property
- Mortgage Repayment CalculatorEstimate principal and interest repayments on an Australian home loan.
- Stamp Duty CalculatorEstimate transfer duty on a property purchase by state or territory.
- Loan Repayment CalculatorEstimate repayments on any principal and interest loan.
- Property Costs CalculatorAdd up the upfront costs of buying a property, alongside the deposit.
- Property Land Size CalculatorConvert a rectangular block's dimensions into square metres, hectares and acres.
Cars & Travel
- Fuel Cost CalculatorWork out the fuel cost of a trip using litres per 100km and the pump price.
- Cents Per Km CalculatorEstimate your ATO work-related car expense tax deduction using the cents-per-kilometre method — not a trip fuel cost.
- EV Charging Cost CalculatorWork out kWh required, charging time and cost to charge an electric vehicle at home or at a public charger.
- Car Loan CalculatorEstimate repayments on a car loan, including an optional balloon payment.
- Travel Distance & Cost CalculatorEstimate the driving cost of a trip including fuel, accommodation and tolls.
Caravan & Towing
Home & Energy
- Solar Payback CalculatorEstimate how long a rooftop solar system takes to pay for itself.
- Electricity Cost CalculatorWork out what an appliance costs to run per day, week and year.
- Pool Running Cost CalculatorEstimate the yearly cost of running a pool pump plus chemicals.
- Air Conditioner Running Cost CalculatorEstimate what your air conditioner costs to run per hour, day and season.
- Swimming Pool Water Fill CalculatorWork out how many litres or kilolitres it takes to fill a rectangular or round pool.
Everyday Calculators
- Percentage CalculatorWork out a percentage of an amount, or the percentage change between two numbers.
- Age CalculatorWork out an exact age in years, months and days.
- Date Difference CalculatorCount the days, weeks and weekdays between two dates.
- Unit ConverterConvert between common metric and imperial units used in Australia.