Math Calculators
Free math calculators for percentages, fractions, area, statistics, and algebra. Get instant answers with step-by-step solutions.
Scientific Calculator
Full scientific calculator with trigonometry, logarithms, exponents, factorials, memory, and degree/radian modes.
Percentage Calculator
Calculate percentages, percentage change, and percentage of a number.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Area Calculator
Calculate the area of common shapes including rectangles, circles, and triangles.
Circle Calculator
Calculate the circumference and area of a circle from radius or diameter.
Exponent Calculator
Calculate the result of raising a number to any power.
Pythagorean Theorem Calculator
Calculate the missing side of a right triangle using a² + b² = c².
Quadratic Equation Solver
Solve ax² + bx + c = 0 and find real or complex roots.
Standard Deviation Calculator
Calculate mean, standard deviation, and variance from a set of numbers.
GCD & LCM Calculator
Find the greatest common divisor and least common multiple of two numbers.
Sample Size Calculator
Calculate the required sample size for surveys and experiments.
Aspect Ratio Calculator
Calculate aspect ratio, resize dimensions, and convert between formats.
Matrix Calculator
Add, subtract, multiply matrices and calculate determinants and transposes.
Logarithm Calculator
Calculate logarithms with any base including natural log and log base 10.
Probability Calculator
Calculate probability, odds, and complementary probability from events and outcomes.
Permutation & Combination Calculator
Calculate permutations P(n,r) and combinations C(n,r) with formulas.
Mean Median Mode Calculator
Calculate mean, median, mode, range, and standard deviation from a data set.
Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Significant Figures Calculator
Count significant figures and round numbers to a specified number of sig figs.
Scientific Notation Calculator
Convert between standard form and scientific notation.
Integral Calculator
Compute definite integrals numerically using Simpson's rule. Supports polynomials, trig, exp, and log.
Derivative Calculator
Calculate derivatives of polynomial, trigonometric, exponential, and logarithmic functions symbolically.
Limit Calculator
Evaluate limits of polynomial, rational, and trigonometric expressions as x approaches any value.
Taylor Series Calculator
Compute Taylor and Maclaurin series expansions for common functions up to N terms.
Complex Number Calculator
Add, subtract, multiply, and divide complex numbers. Convert between rectangular and polar forms.
Vector Calculator
Compute vector addition, subtraction, dot product, cross product, and magnitude for 2D and 3D vectors.
Eigenvalue Calculator
Find eigenvalues and eigenvectors of 2x2 and 3x3 matrices by solving the characteristic polynomial.
Boolean Algebra Simplifier
Simplify boolean expressions using algebraic rules. Supports AND, OR, NOT, and XOR operations.
Base Arithmetic Calculator
Perform addition, subtraction, and multiplication in any number base from 2 to 36.
Modular Arithmetic Calculator
Compute modular addition, subtraction, multiplication, exponentiation, and modular inverse.
Set Operations Calculator
Compute union, intersection, difference, symmetric difference, power set, and cardinality of sets.
Prime Number Checker
Check if a number is prime, find its factors, and see nearest primes.
Random Number Generator
Generate cryptographically secure random numbers with custom range and count.
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals bidirectionally.
Percentage Decrease Calculator
Calculate percentage decrease between two numbers instantly. Find depreciation rates, weight loss percentages, stock drops, and decline metr...
Percentage Increase Calculator
Calculate percentage increase between two numbers instantly. Find year-over-year growth, salary raises, inflation rates, and investment retu...
Percentage Off Calculator
Calculate how much you save with any percentage off discount. Find the final price after X% off, compare deals, and avoid double discount tr...
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