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Most used
The calculators Australians
reach for first
Take Home Pay Calculator
Calculate your net pay after income tax, Medicare levy, and superannuation deductions.
Open calculatorMortgage Repayment Calculator
Calculate your home loan repayments, total interest payable, and amortisation schedule.
Open calculatorStamp Duty Calculator — All States
Compare stamp duty across all Australian states and territories on one page.
Open calculatorBMI Calculator
Calculate your Body Mass Index and see which weight category you fall into.
Open calculatorCalorie Intake Calculator
Calculate your daily calorie and macronutrient targets for weight loss, maintenance, or muscle gain.
Open calculatorFuel Cost Calculator
Calculate the fuel cost for a trip based on distance, fuel consumption rate, and petrol price.
Open calculatorDays Between Dates Calculator
Calculate the number of days, weeks, months, and business days between any two dates.
Open calculatorGST Calculator
Add GST, remove GST, or find the GST component of any amount — Australian 10% GST.
Open calculatorPercentage Calculator
Calculate percentages three ways — X% of Y, X is what % of Y, and percentage change between two values.
Open calculatorCompound Interest Calculator
Calculate compound interest with regular contributions, showing growth over time with different compounding frequencies.
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Learn
Guides & articles
How Australian Income Tax Works: A Plain-English Guide
Australia's income tax system uses progressive tax brackets, meaning the more you earn, the higher the rate applied to each additional dollar. Here's how it actually works.
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Take-Home Pay in Australia: What Actually Hits Your Bank Account
Your salary and your take-home pay are two very different numbers. This guide breaks down every deduction between your gross income and the dollars you actually spend.
HELP Debt Repayment Explained: How Student Loans Work in Australia
Australia's HELP scheme lets you study now and repay later — but the repayment system catches many graduates off guard. Here's exactly how your student loan gets repaid through your tax return.
Super Guarantee at 12%: What It Means for Your Retirement
From 1 July 2025, the Superannuation Guarantee rises to 12% — the final step in a long increase journey. Here's what changes, what it means for your pay, and how to make the most of it.
The Medicare Levy Explained: Who Pays It and How Much
Most Australians pay a 2% Medicare Levy on their taxable income every year — but many don't fully understand when it applies, who's exempt, and when the extra Medicare Levy Surcharge kicks in.
Working From Home Tax Deductions: What You Can Actually Claim in Australia
The ATO has tightened the rules on WFH deductions but there's still serious money on the table if you know what to claim. Here's the full breakdown for 2024-25.
Salary Sacrifice Into Super: How It Works and Why It's One of the Most Powerful Tax Moves Available
Salary sacrificing into superannuation is one of the most tax-effective strategies available to Australian workers. Here's exactly how it works, what it costs you, and how much it saves.
If you're looking to go deeper on this, the Monthly Budget Planner & Expense Tracker ($10.99, 5★ from 4 reviews) is worth a look. Affiliate link
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