Math Calculators
Mathematics is made approachable with our Math Calculators. Solve complex problems with our Binary, Scientific Notation, and Standard Form Calculators, or explore mathematical concepts like permutations with our Permutation Calculator. For students and professionals alike, our calculators such as the Mean, Median, Mode, and Variance Calculators offer statistical analysis tools that are both accurate and easy to use.
Adding Fractions CalculatorAdd fractions free, with or without common denominators. Enter your fractions for the exact sum in lowest terms, shown as a mixed number.
Binary CalculatorFree binary calculator: convert binary to decimal and back, and add, subtract, multiply or divide binary numbers with steps.
Cube Root CalculatorFree cube root calculator: find the cube root of any number, perfect cubes and negatives, with the exact value to several decimals.
Decimal to Fraction CalculatorConvert a decimal to a fraction free, in simplest form. Handles repeating decimals and mixed numbers, with the reduction shown step by step.
Decimal to Percent CalculatorConvert a decimal to a percent free. Multiply by 100 to get the exact percentage, with worked examples and percent-to-decimal conversion.
Density CalculatorFree density calculator using density = mass / volume. Enter mass and volume in g, kg, lb, cm3 or ft3 to find density, or solve for mass or volume.
Force CalculatorFree force calculator using Newton's second law, F = ma. Enter any two of force, mass and acceleration to find the third, with worked examples in newtons.
Fraction to Decimal CalculatorConvert a fraction to a decimal free. Divide top by bottom for the exact value, with rounding for repeating decimals and worked examples.
GCF CalculatorFind the greatest common factor free, for two or more numbers. Shows the GCF with worked factorization and Euclid steps. Also called the GCD or HCF.
Integer CalculatorFree integer calculator: add, subtract, multiply, and divide whole numbers, including negatives, with the sign rules shown step by step.
Kinetic Energy CalculatorFree kinetic energy calculator: find KE from mass and velocity using KE = 1/2 m v squared, with worked examples and joule, kJ, calorie and BTU units.
LCM Calculator - Least Common MultipleFree LCM calculator: find the least common multiple of two or more numbers, with prime factorization and ladder-method steps shown.
Least Common Denominator CalculatorFree least common denominator calculator: find the LCD of fractions, integers and mixed numbers, then see each fraction rewritten over it.
Long Division CalculatorFree long division calculator: divide numbers step by step and get the quotient, remainder and mixed-number form, with every step shown.
Math Equation SolverFree math equation solver: simplify expressions with PEMDAS order of operations and solve linear and quadratic equations step by step.
Mixed Fraction CalculatorFree mixed fraction calculator. Add, subtract, multiply, and divide mixed fractions with step-by-step worked examples and answers in lowest terms.
Mixed Number CalculatorFree mixed number calculator. Convert between improper fractions, mixed numbers, and decimals, with worked examples and answers in simplest form.
Percent to Fraction CalculatorFree percent to fraction calculator. Convert any percentage, including decimals and values over 100, to a fraction in lowest terms with the steps shown.
Percentage CalculatorFree percentage calculator: find X% of Y, what percent one number is of another, percent change, and percent difference, with the formulas explained.
Probability CalculatorFree probability calculator: find the chance of an event as a fraction, decimal, or percent, with rules for independent, dependent, and combined events.
Proportion CalculatorFree proportion calculator: solve a/b = c/d for the missing value by cross-multiplying, with worked examples for recipes, scaling, and map scales.
Pythagorean Theorem CalculatorFree Pythagorean theorem calculator: solve a squared plus b squared equals c squared to find the hypotenuse or a missing leg, with worked examples.
Quadratic Formula CalculatorFree quadratic formula calculator. Enter a, b and c to solve ax^2 + bx + c = 0, with the discriminant, real or complex roots, and worked examples.
Ratio CalculatorFree ratio calculator that simplifies a ratio to lowest terms and solves a proportion for a missing value. See the steps, formula, and worked examples.
Right Triangle CalculatorFree right triangle calculator: solve sides, angles, area and perimeter from any two values using the Pythagorean theorem and trig ratios.
Rounding CalulatorFree rounding calculator. Round any number to the nearest 10, 100, whole number, decimal place, or cent using the round-half-up rule, with examples.
Scientific Notation CalculatorFree scientific notation calculator: convert numbers to and from a x 10^n, plus e-notation and engineering notation, with worked steps.
Sig Fig CalculatorFree sig fig calculator: count the significant figures in any number and round to a chosen count, with the four sig fig rules and examples.
Significant Figures CalculatorFree significant figures calculator: round to a set number of sig figs and apply the add, subtract, multiply and divide precision rules.
Simplifying Fractions CalculatorFree simplifying fractions calculator that reduces any fraction to lowest terms, shows the GCF, the steps, and the mixed-number form.
Slope CalculatorFree slope calculator: find the slope of a line from two points with m = (y2-y1)/(x2-x1), plus the line equation, grade percentage and angle.
Square Footage CalculatorFree square footage calculator: enter length and width to get area in square feet for any room or shape, with unit conversion and cost estimates.
Square Root CalculatorFree square root calculator: find the square root of any number to many decimals, plus cube and nth roots, with by-hand steps and examples.
Standard Form CalculatorFree standard form calculator: convert numbers to and from a x 10^n, the UK name for scientific notation, with steps for large and small values.
Time to Decimal CalculatorFree time to decimal calculator: convert hours, minutes and seconds to decimal hours, minutes or seconds, with the formulas and worked examples.
Triangle CalculatorFree triangle calculator: enter any three known sides or angles to find the missing sides, angles, area, and perimeter of any triangle.
Velocity CalculatorFree velocity calculator: enter distance and time to find average velocity (v = d/t), or solve for distance, time, or acceleration with consistent units.
Volume CalculatorFree volume calculator with formulas for a box, cylinder, sphere, cone, and capsule. Enter the dimensions to get the volume in cubic units.