28 calculator
Math
Percentage calculator
Computes X% of a number, what percent one number is of another, and the % change between two values. The universal…
Percentage change calculator
Percentage change between two values — increase or decrease. Use it for price movement, salary changes, sales…
Percentage increase calculator
Percentage decrease calculator
Fraction calculator
Decimal to fraction calculator
Square root calculator
Cube root calculator
Exponent calculator
Logarithm calculator
Factorial calculator
Prime number checker
Prime factorization calculator
GCD (greatest common divisor) calculator
LCM (least common multiple) calculator
Quadratic equation solver
Linear equation solver
Slope of a line calculator
Distance between two points calculator
Midpoint calculator
Pythagorean theorem calculator
Triangle area calculator
Circle area calculator
Circle circumference calculator
Rectangle area calculator
Sphere volume calculator
Cylinder volume calculator
Cone volume calculator
Local context: what it looks like in Australia
No conversions needed — Math already uses Australian dollars, metric units and the rules the ATO applies.
Key local facts
- Money: Australian dollars shown as A$1,234.56, and GST of 10% is included in the price you see on the shelf.
- Tax: A tax-free threshold followed by progressive rates up to 45%, plus the 2% Medicare levy on most taxable income.
- Super: Employers pay the Superannuation Guarantee on top of wages — it is separate money, not a deduction from your pay.
- Units: Fully metric: kilometres, kilograms, litres, °C, and floor area in square metres.
- Power: 230 V / 50 Hz with Type I plugs, and installations follow AS/NZS 3000 (the Wiring Rules).
Local examples
- Example — Sydney: A renter in Sydney uses Math to work out weekly versus fortnightly figures, since rent here is quoted per week.
- Example — Perth: A tradie in Perth runs Math for a quote, then adds GST at 10% as a separate line for the client.
Every figure above applies to Australia specifically and is reviewed when the rules change.