Algebra & Numbers Calculators
Fractions, exponents, factors and more.
Core math tools: evaluate expressions, work with fractions and percentages, solve quadratics, factor integers, and convert between number bases.
All 32 algebra & numbers calculators
Average CalculatorFind the mean of a list of numbers, plus the sum, count, minimum and maximum.Base ConverterConvert a whole number between any two number bases from 2 (binary) to 36, via decimal.Basic CalculatorAdd, subtract, multiply or divide two numbers instantly. A simple online calculator for quick everyday arithmetic, with division-by-zero guarded.Big Number CalculatorAdd, subtract, multiply, divide, mod or raise huge integers to a power with exact precision.Binary CalculatorConvert whole numbers between binary, octal, decimal and hexadecimal in any direction, with the decimal value always shown to check against.Common Factor CalculatorList every factor shared by two whole numbers and identify the greatest.Complex Number CalculatorAdd, subtract, multiply or divide two complex numbers and see the magnitude and argument.Dice RollerRoll any number of dice with a chosen number of sides and add an optional modifier.Exponent CalculatorRaise a base to any power, including fractional and negative exponents. Fractional powers give roots and negative powers give reciprocals.Factor CalculatorList all the factors (divisors) of a whole number and check whether it is prime.Factorial CalculatorCompute the factorial n! exactly, with its digit count and scientific estimate.Fraction CalculatorAdd, subtract, multiply or divide two fractions and get the reduced result.Greatest Common Factor CalculatorFind the largest whole number that divides two or three integers exactly.Hex CalculatorConvert whole numbers between hexadecimal, decimal, binary and octal in any direction, with uppercase hex digits and the decimal equivalent.Least Common Multiple CalculatorFind the smallest positive number that two or three integers all divide into.Log CalculatorCompute the logarithm of a number in any base. Shows the natural log (ln) and common log (base 10) alongside your chosen base.Long Division CalculatorDivide two whole numbers and see the quotient, remainder and the step-by-step long-division work.Matrix CalculatorAdd, subtract, multiply, scale, transpose or find the determinant of matrices of any size.Modulo CalculatorCompute a mod n, showing both the signed remainder and the always-positive true modulo.Number Sequence CalculatorFind the nth term and running sum of an arithmetic, geometric or Fibonacci sequence.Percent Error CalculatorMeasure how far a measured value is from the true value as a percentage.Percentage CalculatorFind a percentage of a number, what percent one number is of another, or a percent change.Polynomial CalculatorEvaluate a polynomial at a value of x and find its roots for degree 1 or 2.Prime Factorization CalculatorBreak a whole number down into the product of its prime factors, with the full factor list and exponent form shown together.Quadratic Formula CalculatorSolve any quadratic equation a·x² + b·x + c = 0, including complex roots.Random Number GeneratorGenerate one or more uniform random whole numbers within a range. Useful for picking winners, sampling data or seeding a quick test.Roman Numeral ConverterConvert numbers to Roman numerals and back, for values from 1 to 3999.Root CalculatorFind the nth root of a number — square root, cube root or any higher degree. Works as an online sqrt calculator and handles negative odd roots.Rounding CalculatorRound a number to a chosen number of decimal places using round, floor or ceil.Scientific CalculatorEvaluate a full scientific expression with trig, logs, powers and constants.Scientific Notation CalculatorConvert any number into scientific notation a×10^n with a coefficient between 1 and 10.Significant Figures CalculatorCount the significant figures in a number and round it to a chosen number of sig figs.