Tax Calculators
GST, income tax, salary and stamp duty — current Australian rates for 2024–25
GST Calculator Australia
Add or remove 10% GST instantly. Works for quotes, invoices and BAS reporting.
Use calculator →Income Tax Calculator
Estimate your 2024–25 tax liability using current ATO tax brackets and low income offset.
Use calculator →Salary After Tax
See your exact take-home pay broken down weekly, fortnightly, monthly and annually.
Use calculator →Stamp Duty Calculator VIC
Calculate Victorian stamp duty for established homes, new builds and first home buyers.
Use calculator →Stamp Duty Calculator NSW
Calculate NSW transfer duty with first home buyer exemptions up to $800,000. 2025–26 rates.
Use calculator →Stamp Duty Calculator QLD
Calculate Queensland transfer duty with first home and home concession rates. 2025–26.
Use calculator →Finance Calculators
Mortgages, loans, superannuation and compound interest tools
Mortgage Calculator
Calculate monthly repayments, total interest and amortisation for any Australian home loan.
Use calculator →Loan Repayment Calculator
Works for personal loans, car finance and any fixed-term loan. Shows full repayment schedule.
Use calculator →Superannuation Calculator
Project your super balance at retirement with the current 11.5% SG rate and salary sacrifice.
Use calculator →Compound Interest Calculator
See how savings or investments grow over time with regular compounding and contributions.
Use calculator →Construction & Trade Calculators
Materials, costs and measurements for builders, tradies and DIYers
Concrete Calculator
Calculate cubic metres of concrete for slabs, footings and columns. Includes bag count.
Use calculator →Paving Cost Calculator
Estimate paving project costs including materials and labour — based on current Australian rates.
Use calculator →Decking Cost Calculator
Compare timber vs composite decking costs for any size deck, including labour estimates.
Use calculator →Retaining Wall Calculator
Estimate costs by material — timber sleepers, concrete blocks or natural stone.
Use calculator →Landscaping Cost Calculator
Get a realistic landscaping budget covering turf, garden beds, paving, edging and drainage.
Use calculator →Gravel Calculator
Calculate cubic metres and tonnes of gravel, crushed rock or mulch for driveways and paths.
Use calculator →Square Metre Calculator
Calculate room or area sizes in m². Supports rectangles, L-shapes, triangles and circles.
Use calculator →Utility & Everyday Calculators
Percentages, conversions, BMI, age and time tools
Percentage Calculator
Find percentages, percentage change, and what percent one number is of another — instantly.
Use calculator →BMI Calculator
Calculate your Body Mass Index using Australian health guidelines. Supports metric and imperial.
Use calculator →Unit Converter
Convert between metric and imperial for length, weight, temperature, volume and more.
Use calculator →Age Calculator
Calculate exact age in years, months and days from any date of birth. Finds next birthday.
Use calculator →Time Calculator
Add or subtract time durations, convert hours and minutes, calculate time differences.
Use calculator →