Free calculators for property, finance, health, and everyday decisions. No sign-up. No fluff.
All states & territories. First home buyer exemptions included.
PropertyGross and net yield. See if the numbers stack up before you buy.
PropertyFind out if you'll pay Lenders Mortgage Insurance and exactly how much.
PropertyEstimate how much a bank will lend you based on income, debts, and living costs.
PropertyMonthly repayments, total interest, and how extra payments save you money.
PropertySee how much your offset account saves in interest and years off your loan.
PropertyCGT on property or investments. Includes the 50% discount for 12+ months.
Property2025โ26 tax, Medicare levy, LITO, HECS. See your real take-home pay.
FinanceConvert hourly, daily, weekly, monthly or annual pay โ gross and take-home.
FinanceAnnual repayment, years to pay off, and full threshold table.
FinanceNational minimum wage, casual loading, overtime rates. Calculate your weekly pay.
FinanceProject your super balance at retirement. Are you on track?
FinanceWatch your savings grow. Includes regular deposits and Australian bank rates.
FinancePersonal or any loan. Monthly repayments and total interest paid.
FinanceMonthly repayments with optional balloon payment. Total cost breakdown.
FinanceHow long until you hit your savings target? Find out in seconds.
FinanceCost per trip, per week, per year. See savings with a more efficient car.
FinanceEstimate your solar panel rebate. How many STCs does your system earn?
FinanceSplit any bill equally or by custom amounts. Per-person breakdown instantly.
FinanceBody Mass Index and healthy weight range. Metric and imperial.
HealthBasal Metabolic Rate โ calories your body burns at rest. Two formulas compared.
HealthTotal daily energy expenditure and calorie targets for lose/maintain/gain.
HealthPace to time, time to pace, or distance in X time. Splits every 5km.
HealthAU/UK bra size from measurements. US conversion and size chart.
HealthPregnancy due date, current week, trimester, and key milestones.
HealthEstimate blood alcohol level and when you're safe to drive under 0.05.
HealthEstimate body fat percentage using the US Navy method.
HealthWhat is X% of Y? X is what % of Y? Three modes, instant answers.
MathsIncrease, decrease, or work backwards. What % did that change by?
MathsSimplify fractions and do arithmetic with them. Shows working steps.
MathsAustralian and US GPA. Weighted by credit points.
MathsIPv4 subnet calculator. Network address, broadcast, host range from CIDR or mask.
MathsExact age in years, months and days. Days until your next birthday.
TimeDays, weeks, months or years between any two dates. Excludes weekends option.
TimeAll Australian timezones + major world cities. Live updating clock.
TimeFind when you're both awake. No more 3am calls to mum in the UK.
TimeCount down to any date. Live days, hours, minutes, seconds.
TimeAU, US, UK, EU sizes for men, women and kids. Full size chart included.
ConverterTemperature, weight, length, and area. Converts both directions in real time.
ConverterLive AUD exchange rates. Convert any amount between major world currencies.
ConverterCompare tyre sizes, speedometer error, and decode what 205/55R16 means.
ConverterSmartKoala is a free collection of tools built for Australians. No sign-up, no ads, just useful calculators that work. More tools added regularly. ๐จ