Australia calculators

Transfer/land transfer/conveyance duty by state for 2025-26, with first-home concessions, the foreign-buyer surcharge and a state-by-state comparison.

Term deposit interest the way Australian banks actually pay it (simple, at maturity) — plus the after-tax return at your 2026-27 marginal rate that no bank calculator shows.

Project your super balance to retirement in today's dollars: 12% SG, 2026-27 contribution caps, salary sacrifice and after-tax top-ups, with adjustable fees and returns.

Vendor-neutral novated lease savings with the FBT, ECM and GST maths shown in full — including the electric-car FBT exemption under the $91,661 cap and the RFBA catch.

Interest saved and years cut from an Australian home loan by an offset account balance, with a with/without schedule and a sensitivity table.

Maximum sustainable weekly rent from your income at the 30% housing-stress benchmark, mapped against June 2026 median rents in all eight capitals.

Gross and net rental yield with every expense itemized, plus cash-on-cash return if you're buying with a mortgage.

UK statutory holiday entitlement (5.6 weeks, 28-day cap) in days and hours, pro-rata for part-time and part-year, plus the 12.07% irregular-hours method. AU page covers the NES 4-week accrual.

Add or remove Australia's 10% GST (the ÷11 rule), with a pre-GST and GST breakdown and the GST-free list.

2026-27 take-home pay: the new 15% bracket, the 2% Medicare levy, LITO, the reformed marginal HELP/HECS repayment and 12% super, with a per-bracket breakdown.

The statutory Formula 1 assessment (2026 rates) with all 8 steps shown — both parents' incomes, the Costs of the Children table, care and cost percentages, and who pays whom.

The extra tax a gain actually costs you at your real 2026-27 marginal rate + Medicare levy, with the 50% discount, loss offsets applied in the correct ATO order, and a per-bracket breakdown.

ATO fuel tax credits for the current period across six fuel types and both business uses, with the BAS-ready amount and the temporary excise cut applied.

Your CCS percentage and out-of-pocket gap fee from family income, care type and hourly fee — including the higher rate for second and younger children aged 5 or under.

FTB Part A and Part B per fortnight and per year from the Services Australia rates and both income tests, with the end-of-year supplements listed separately.

ATO 2026-27 refund estimate: PAYG withheld minus your real tax bill (brackets, Medicare levy, LITO and HELP, capped at your remaining balance).

Volume of cubes, prisms, cylinders, spheres, cones, pyramids and capsules in metric or imperial units.

Symbolic derivatives of elementary single-variable functions to third order, naming the rule applied at every node — power, product, quotient, chain, trig, exp and log.

Solves right triangles from any two known values with SOH-CAH-TOA steps, degrees and radians, and exact unit-circle values for the special angles.

Human-age equivalent using the 2020 epigenetic formula and size-adjusted veterinary tables, versus the old times-7 rule.

Daily protein needs in g/kg by goal and activity level, in kg, pounds or stones.

Instant kilojoule ↔ calorie conversion (1 Cal = 4.184 kJ) with FSANZ-format label examples and the 8,700 kJ daily reference intake.

US, UK, EU and CM (Mondopoint) shoe sizes for men, women and kids, including youth-to-women conversion.

Compares two tyre sizes — diameter, sidewall, circumference, speedo error at 100 km/h and revs per km — and flags differences beyond the ±3% workshop convention.

Australia Post domestic letter and Parcel Post flat-rate prices effective 1 July 2026, satchel versus postage-only, with the Express Post comparison.

Annual vehicle registration cost for NSW, Victoria, Queensland, WA and South Australia side by side, with CTP inclusion noted per state.