Everyday calculators for Australians
Quick, accurate answers for the sums that come up all year – invoices, pay slips, road trips, the mortgage and the weekly shop.
Free, no sign-upNothing you type leaves your deviceTax rates checked Nov 2026Works on your phone
- GST calculatorAdd or remove GST, one amount or a whole invoice.
- Take-home payTax, Medicare, HELP and super for 2026-27.
- Fuel costRoad trips, commutes and splitting the bill.
- Loan & mortgageRepayments, interest and what extra payments save.
- Unit priceWhich pack is actually cheaper at the supermarket.
- Date & ageExact age, days between dates, adding days.
- Unit converterLength, weight, temperature, volume and speed.
- Time zonesSydney to Perth, London, LA and back.
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