Free Online Calculators for Everyday Australians

Yes. Every calculator is completely free to use, with no sign-up, no limits and no app to download.

59 free calculators across six categories: money and finance (mortgage, income tax, GST, super, loans and savings), property and construction (rental yield, negative gearing, concrete, paint, tiles and decking), health and fitness (BMI, BMR, TDEE, calories and kilojoules, pregnancy due date), dates, work and education (age, business days, hours worked, grades), maths (percentage, fractions, ratios, scientific) and unit converters.

Yes. They use Australian dollars, the 10% GST rate, Australian income tax rates and the Medicare levy, superannuation rules, state and territory stamp duty and public holidays, metric units and kilojoules.

The tax-based calculators use the published Australian resident tax rates for the financial year shown on each calculator, and they are updated when rates change. Easy Calculator is independent and not affiliated with the ATO, so check important figures with the ATO or a registered tax agent.

They default to the metric units used in Australia (metres, litres, kilograms, kilojoules and °C). Many calculators also let you switch to imperial units such as feet, inches, pounds and °F, and the unit converters cover both.

Each calculator uses standard, published formulas, is tested against independently worked examples, and shows its working. Results are estimates for general information — for medical, financial or structural decisions, confirm with a qualified professional.

No. Calculations run in your browser and the numbers you enter are not saved or sent to us.

Yes. Most calculators have an 'Embed this calculator' option with a copy-and-paste code that works on WordPress, Wix, Squarespace and any page that accepts HTML.