Math calculators
Percentages, fractions, discounts and everyday maths, with every step shown.
- Percentage calculatorWhat is 20% of 150?
- Discount calculator25% off 80 = 60
- Fraction calculator1/2 + 1/3 = 5/6
- CircleArea, circumference, radius
- Quadratic equationRoots, vertex, steps
- Pythagorean theoremHypotenuse or a missing leg
- Proportion calculator3 → 7.50, so 8 → 20
- Area and perimeter8 × 5 cm: 40 cm², 26 cm
- Area of any shapeTrapezoid 10, 6, 4: 32 m²
- Volume and surface areaCylinder r 5, h 10: 785.4 cm³
- Sphere calculatorDiameter 22 cm: 5.58 liters
- Slope calculator1 in 12 = 8.33% = 4.76°
- System of equations solver2x + 3y = 13, x − y = −1