CALCULATOR CATEGORY

Math calculators

Use consistent units when a calculator asks for lengths or areas. Negative inputs are accepted only where the operation supports them. Display rounding does not change the underlying formula.

Working with fractions? Find a shared denominator with the LCM calculator with steps, or simplify a fraction with the greatest common divisor calculator.

• Percentage

  Find a percentage of any number.

• Percentage change

  Measure the increase or decrease between two values.

• Fraction to decimal

  Convert a fraction to a decimal and percentage.

• Right triangle

  Find the hypotenuse from two perpendicular sides.

• Circle area

  Find area and circumference from a radius.

• Square root

  Find the principal square root of a nonnegative number.

• Exponent

  Raise a number to an integer or fractional power.

• Logarithm

  Calculate a logarithm for a chosen base.

• Quadratic equation

  Find the real roots of ax² + bx + c = 0.

• Slope

  Calculate the slope between two points.

• Distance between points

  Find straight-line distance in a two-dimensional plane.

• Triangle area

  Calculate area from base and perpendicular height.

• Trapezoid area

  Find area from two parallel sides and their separation.

• Sphere volume

  Calculate volume and surface area from a radius.

• Cylinder volume

  Find volume and total surface area of a closed cylinder.

• Cone volume

  Calculate the volume of a right circular cone.

• Greatest common divisor

  Find the largest integer divisor shared by two numbers.

• Least common multiple

  Find the smallest common positive multiple.

• Factorial

  Calculate n! for a nonnegative integer.

• Combinations

  Count unordered selections without replacement.

• Arithmetic sequence

  Find a term and partial sum of an arithmetic sequence.