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505 resultsPercentage Calculator
Percentage Calculator with an instant result. Result = value × percentage ÷ 100.
Math & numbersChecking...Percentage Change
Percentage Change with an instant result. Change = (new − original) ÷ |original| × 100. Original cannot be zero.
Math & numbersChecking...Percentage Error
Percentage Error with an instant result. Absolute difference divided by the absolute accepted value, multiplied by 100.
Math & numbersChecking...Ratio Simplifier
Ratio Simplifier with an instant result. Divide both whole numbers by their greatest common divisor.
Math & numbersChecking...Fraction Simplifier
Fraction Simplifier with an instant result. Reduce a fraction to its lowest terms.
Math & numbersChecking...Fraction to Decimal
Fraction to Decimal with an instant result. Divide the numerator by a nonzero denominator.
Math & numbersChecking...Decimal to Fraction
Decimal to Fraction with an instant result. Convert a finite decimal (up to six decimal places) into a reduced fraction.
Math & numbersChecking...Average Calculator
Average Calculator with an instant result. Sum of values divided by the number of values.
Math & numbersChecking...Median Calculator
Median Calculator with an instant result. Middle value after sorting; average the middle two for an even count.
Math & numbersChecking...Mode Calculator
Mode Calculator with an instant result. Return all values with the highest frequency.
Math & numbersChecking...Variance Calculator
Variance Calculator with an instant result. Population variance: sum of squared deviations divided by N.
Math & numbersChecking...Standard Deviation
Standard Deviation with an instant result. Population standard deviation: square root of population variance.
Math & numbersChecking...HCF/GCD Calculator
HCF/GCD Calculator with an instant result. Greatest common divisor of nonnegative integers.
Math & numbersChecking...LCM Calculator
LCM Calculator with an instant result. Least common multiple of nonnegative integers.
Math & numbersChecking...Prime Number Checker
Prime Number Checker with an instant result. Test divisibility up to the square root; supports integers up to one billion.
Math & numbersChecking...Prime Factorization
Prime Factorization with an instant result. Divide repeatedly by prime factors.
Math & numbersChecking...Square Root
Square Root with an instant result. Nonnegative square root.
Math & numbersChecking...Cube Root
Cube Root with an instant result. The real cube root, including for negative values.
Math & numbersChecking...Factorial Calculator
Factorial Calculator with an instant result. Product of integers from 1 to N (N ≤ 170).
Math & numbersChecking...Power Calculator
Power Calculator with an instant result. Raise the base to the given exponent.
Math & numbersChecking...Permutation Calculator
Permutation Calculator with an instant result. nPr: ordered selections without replacement.
Math & numbersChecking...Combination Calculator
Combination Calculator with an instant result. n choose r: unordered selections without replacement.
Math & numbersChecking...Probability Calculator
Probability Calculator with an instant result. Probability = favorable outcomes ÷ total outcomes.
Math & numbersChecking...Quadratic Equation Solver
Quadratic Equation Solver with an instant result. Solve ax² + bx + c = 0 using the quadratic formula.
Math & numbersChecking...Number Sequence Generator
Number Sequence Generator with an instant result. Arithmetic progression: start + index × step.
Math & numbersChecking...Roman Numeral Converter
Roman Numeral Converter with an instant result. Convert a positive integer into standard Roman numerals.
Math & numbersChecking...Circle Area
Circle Area with an instant result. Use consistent units. Formula: π × radius².
Math & numbersChecking...Circle Circumference
Circle Circumference with an instant result. Use consistent units. Formula: 2 × π × radius.
Math & numbersChecking...Rectangle Area
Rectangle Area with an instant result. Use consistent units. Formula: length × width.
Math & numbersChecking...Square Area
Square Area with an instant result. Use consistent units. Formula: side².
Math & numbersChecking...Triangle Area
Triangle Area with an instant result. Use consistent units. Formula: base × perpendicular height ÷ 2.
Math & numbersChecking...Triangle Perimeter
Triangle Perimeter with an instant result. Use consistent units. Formula: Sum of three sides; the triangle inequality must hold..
Math & numbersChecking...Pythagorean Calculator
Pythagorean Calculator with an instant result. Use consistent units. Formula: hypotenuse = √(a² + b²).
Math & numbersChecking...Trapezoid Area
Trapezoid Area with an instant result. Use consistent units. Formula: (a + b) × height ÷ 2.
Math & numbersChecking...Cylinder Volume
Cylinder Volume with an instant result. Use consistent units. Formula: π × radius² × height.
Math & numbersChecking...Cube Volume
Cube Volume with an instant result. Use consistent units. Formula: side³.
Math & numbersChecking...