Math Calculators
Fractions, percentages, algebra, geometry and statistics calculators with step-by-step answers.
47 calculators
- Area CalculatorCalculate the area of a square, rectangle, triangle, circle, ellipse, trapezoid, parallelogram, circular secto
- Average CalculatorFind the mean, median, mode and range of a list of numbers, plus the sum, count, minimum and maximum. Paste nu
- Average Rate of Change CalculatorFind the average rate of change of a function over an interval [a, b] from a formula such as x^2 + 3x or from
- Binary CalculatorAdd, subtract, multiply and divide binary numbers, or apply AND, OR and XOR. Results are shown in binary, deci
- Circle CalculatorEnter a circle’s radius, diameter, circumference or area and get all four values back instantly, using π to fu
- Cube Root CalculatorCalculate the cube root of any positive or negative number, simplify cube root radicals like ∛54 = 3∛2 and che
- Decimal to Fraction CalculatorConvert a decimal, including a repeating decimal, into an exact simplified fraction and mixed number, with the
- Distance Formula CalculatorFind the straight-line distance between two points in 2D or 3D using the distance formula, with the coordinate
- Exponent CalculatorRaise any number to a power, including negative and fractional exponents. Shows the result, scientific notatio
- Factorial CalculatorCalculate n! exactly for whole numbers up to 3,000, with every digit shown, the number of digits, trailing zer
- Fraction CalculatorAdd, subtract, multiply and divide fractions and mixed numbers. Get the simplified answer, the mixed number, t
- Fraction to Decimal CalculatorConvert any fraction or mixed number to a decimal and a percent, and see the repeating block of digits for fra
- GCF CalculatorFind the greatest common factor (GCF, also called GCD or HCF) of two or more numbers, with Euclidean algorithm
- Golden Ratio CalculatorSplit a length by the golden ratio φ ≈ 1.618. Enter the longer part, shorter part or total and get the other t
- Improper Fraction to Mixed Number CalculatorConvert an improper fraction to a mixed number, or a mixed number back to an improper fraction, simplified and
- LCM CalculatorFind the least common multiple (LCM) of two or more whole numbers, with the prime factorization method shown a
- Logarithm CalculatorCalculate logarithms in base 10, base e (natural log), base 2 or any custom base, and see the equivalent expon
- Long Division CalculatorDivide whole numbers by long division and see every step: divide, multiply, subtract and bring down. Get the q
- Midpoint CalculatorFind the midpoint between two points with the midpoint formula, or find a missing endpoint when you know one e
- Number Base ConverterConvert whole numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36. Handles very larg
- Percent Change CalculatorCalculate the percent increase or decrease between an old and a new value, plus the absolute change and the sy
- Percent Error CalculatorFind the percent error between a measured (experimental) value and the accepted true value, with absolute erro
- Percentage CalculatorFind X% of a number, what percent one number is of another, the percent change between two values, or the whol
- Permutation and Combination CalculatorCalculate permutations (nPr) and combinations (nCr), with and without repetition, to count arrangements and se
- Prime Factorization CalculatorBreak a whole number into its prime factors with exponents, see the division ladder, and get the number of div
- Prime Number CheckerCheck whether a number is prime or composite, see its smallest factor, and find the previous and next prime nu
- Probability CalculatorCombine the probabilities of two independent events: both, either, exactly one, neither, plus the chance an ev
- Proportion CalculatorSolve a proportion A/B = C/D for any one missing value using cross multiplication, with the cross-multiplicati
- Pythagorean Theorem CalculatorUse a² + b² = c² to find the hypotenuse or a missing leg of a right triangle, plus its area, perimeter and bot
- Quadratic Formula CalculatorSolve ax² + bx + c = 0 with the quadratic formula. Get real or complex roots, the discriminant, the vertex, th
- Random Number GeneratorGenerate one or many random numbers in any range, as whole numbers or decimals, with or without repeats. Good
- Ratio CalculatorSimplify a ratio to lowest terms, or scale a ratio up or down to find a missing value in A:B = C:D. Shows the
- Right Triangle CalculatorSolve a right triangle from any two known values: two sides, or one side and an acute angle. Finds every side,
- Rise Over Run to Degrees CalculatorConvert rise and run to an angle in degrees, percent grade and pitch per 12, or find the rise from an angle. A
- Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers from 1 to 3,999, with a place-by-place br
- Rounding CalculatorRound numbers to the nearest thousand, hundred, ten, whole number, tenth, hundredth or thousandth, using half
- Scientific Notation CalculatorConvert numbers to and from scientific notation, E notation and engineering notation. Enter 0.000045, 45,600,0
- Significant Figures CalculatorCount the significant figures in a number using the standard sig fig rules, see which digits count, and round
- Simplify Fraction CalculatorReduce a fraction to lowest terms using the greatest common factor. Shows the GCF, the simplified fraction, th
- Slope CalculatorFind the slope of a line through two points, plus the y-intercept, slope-intercept equation, angle of inclinat
- Square Root CalculatorFind the square root of any number, simplify radicals such as √50 = 5√2, check for perfect squares and get the
- Standard Deviation CalculatorCalculate sample or population standard deviation and variance from a list of numbers, with the mean and a ful
- Surface Area CalculatorCalculate the total and lateral surface area of a cube, rectangular box, cylinder, sphere, hemisphere, cone or
- Triangle Area CalculatorFind the area of any triangle from base and height, from all three sides (Heron’s formula) or from two sides a
- Volume CalculatorFind the volume of a cube, box, cylinder, sphere, hemisphere, cone, pyramid, triangular prism, capsule or elli
- Weighted Average CalculatorCalculate a weighted average (weighted mean) from a list of values and their weights, with each value’s contri
- Z-Score CalculatorCalculate a z-score from a value, mean and standard deviation, or a raw value from a z-score, with normal dist