-
Mathizer: the everyday calculator
Type the full calculation and get an exact answer instantly. With rule of three, fractions, equations and more, on iPhone, iPad and Android.
A calculator for real-life math
A discount at the store, scaling a recipe, splitting a bill or checking a proportion at work. Mathizer handles it without extra steps: type your calculation with parentheses, percentages, powers, roots or scientific notation and see the result as you type, no need to press "=".
Rule of three
Enter three values and find the fourth, with direct or inverse proportion. For example, if 3 kg cost €12, Mathizer tells you that 5 kg cost €20. It is ideal for unit prices, currency conversions, scales, recipes, fuel use or work hours.
Fractions
Add, subtract, multiply and divide two fractions and get the simplified result alongside the unsimplified one. You can also reduce any fraction to its simplest form.
Arithmetic
- GCD and LCM: greatest common divisor and least common multiple of two numbers.
- Prime factorization: break any number down into prime factors with exponents.
- Base conversion: convert numbers between decimal, binary, octal and hexadecimal, up to 32 digits with no loss of precision.
Equations and geometry
- Quadratic equations: enter the coefficients a, b and c and get both roots, a double root or the complex roots.
- Pythagorean theorem: enter two sides of a right triangle and find the third, whether the hypotenuse or a leg.
Your result, always in view
On iPhone, your latest result stays on the Lock Screen and in the Dynamic Island with Live Activities. On Android, it appears in the status bar, notification panel and lock screen. Tap it to return to the operation exactly as you left it.
Your way
- Light, dark or system theme.
- Choose your number format: 1,234.5 · 1.234,5 · 1 234,5 and more.
- It remembers each operation's data and can open straight on your favourite.
- Available in English and Spanish.
Frequently asked questions
Is Mathizer free?
Yes, it is a free download on the App Store and Google Play and may include ads.
What is the rule of three?
It finds an unknown value from three known values that keep a proportion. It is direct when both quantities grow together and inverse when one grows as the other falls.
Which iOS version do I need?
iOS 15 or later.
What data does it collect?
See the privacy policy.
