Math Calculators
Free math tools for every need. All calculations happen in your browser. No signup, no tracking.
Area and Perimeter Calculator: All Shapes Online
Calculate area and perimeter of circles, squares, rectangles, triangles, trapezoids, parallelograms, and ellipses. All formulas shown.
Binary Calculator: Add, Subtract, Multiply, Divide
Do arithmetic directly in binary with bitwise AND, OR, and XOR. See binary working alongside decimal equivalents.
Derivative Calculator: Differentiate Any Function
Compute derivatives of polynomial, trigonometric, exponential, and logarithmic functions with each differentiation rule shown.
Exponent Calculator: Powers, Roots, and Logarithms Online
Calculate powers, square roots, nth roots, and logarithms. Shows step-by-step work for exponent rules, negative exponents, and fractional exponents.
Final Exam Grade Calculator (What Do I Need on the Final)
Find exactly what score you need on your final exam to get the grade you want. Reverse-solve any weighted course in seconds. Free, no signup.
Fraction Calculator: Add, Subtract, Multiply & Divide
Add, subtract, multiply, and divide fractions with step-by-step solutions. Automatically simplifies results and converts to mixed numbers and decimals.
GPA Calculator (Weighted and Unweighted, 4.0 Scale)
Calculate semester and cumulative GPA on the 4.0 scale with honors and AP weighting. Built for US high school and college. Free, no signup.
LCM & GCD Calculator: Least Common Multiple & Divisor
Calculate the LCM (Least Common Multiple) and GCD (Greatest Common Divisor) of two or more numbers. Shows step-by-step solutions.
Long Division Calculator with Steps - Show All Work
Divide large numbers with every step of long division shown: divide, multiply, subtract, bring down. Perfect for homework checks.
Matrix Calculator - Add, Multiply, Determinant and Inverse
Add, subtract, and multiply matrices, compute determinants and inverses, with each step shown. Supports 2x2 and 3x3 matrices.
Mixed Number Calculator: Add, Subtract, Divide
Do arithmetic with mixed numbers and fractions. Converts to improper fractions, shows every step, and simplifies the result.
Number Base Converter: Binary, Octal, Decimal, Hex Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), and any custom base up to 36.
Percentage Calculator: Calculate Percentages Online Free
Calculate percentages easily: what is X% of Y, X is what % of Y, percentage increase/decrease, and percentage difference. Fast and free.
Permutation & Combination Calculator: nPr, nCr Steps
Compute permutations (nPr) and combinations (nCr) with the formula, factorial expansion, and plain-English explanation of when order matters.
Prime Factorization Calculator: Find Prime Factors Online
Find the prime factorization of any number. Shows factor tree, exponential form, all divisors, and checks if a number is prime.
Pythagorean Theorem Calculator: Solve Right Triangles
Calculate the hypotenuse or missing leg of a right triangle using the Pythagorean theorem (a² + b² = c²). Also checks if three lengths form a right triangle.
Quadratic Equation Solver: Solve ax² + bx + c = 0 Online
Solve quadratic equations using the quadratic formula. Shows real and complex roots, vertex, axis of symmetry, and step-by-step work.
Random Number Generator: Integers in Any Range
Generate random integers between any min and max. No-duplicate mode, sorting, and quantity control for fair draws and math experiments.
Ratio Calculator: Simplify and Solve Proportions
Simplify ratios, solve proportions for missing values, scale ratios up/down, and convert ratios to percentages and fractions.
Right Triangle Calculator - Pythagorean Theorem Solver
Solve right triangles with the Pythagorean theorem: find any missing side, plus angles, area, and perimeter. Shows every step.
Rounding Calculator: Decimals & Significant Figures
Round numbers to decimal places or significant figures, with round-half-up, bankers rounding, floor, and ceiling modes explained.
Scientific Calculator: Trig, Logs, Powers & Roots
Free online scientific calculator: trig, logs, powers, roots, factorials, constants. Degree/radian modes, keyboard support.
Scientific Notation Calculator: To & From Standard
Convert numbers to and from scientific notation. Add, subtract, multiply, and divide numbers in scientific notation with step-by-step work.
Slope, Distance & Midpoint Calculator
Enter two points to get slope, distance, midpoint, and the line equation, with every formula step shown.
Statistics Calculator: Mean, Median, Mode & Std Dev
Calculate mean, median, mode, range, variance, standard deviation, and quartiles from a dataset. Shows full descriptive statistics with step-by-step work.
System of Equations Solver: Solve 2x2 Systems
Solve two linear equations in two unknowns by substitution and elimination. Shows every step and detects no-solution and infinite-solution cases.
Triangle Solver - Solve Any Triangle (SSS, SAS, ASA, AAS)
Enter any three known values (sides and angles) to solve a general triangle with the Law of Sines and Law of Cosines. Full steps shown.
Truth Table Generator - Logic Gates and Boolean Expressions
Build truth tables for AND, OR, NOT, XOR, NAND, NOR, XNOR, and implication. See every input combination with plain-English explanations.
Volume Calculator: Sphere, Cube, Cylinder & More
Calculate the volume of 8 common 3D shapes with the formula shown for each. Switch between metric and imperial units.