Math Calculators
Scientific calculations, percentages, quadratic equations, statistics, fractions, and geometry.
General Math
Fractions, percentages, exponents, scientific notation, roots, LCM, GCF, and matrices.
Scientific Calculator
Full-featured scientific calculator with trigonometric, logarithmic, exponential, square root, power, and factorial operations.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step simplification, mixed number, and decimal results.
Percentage Calculator
Compute percentage of a number, find what percent X is of Y, and calculate percentage increase or decrease.
Random Number Generator
Generate cryptographically secure pseudo-random integers or decimals within a custom Min and Max range.
Percent Error Calculator
Calculate the percentage error between an experimental/observed value and an accepted/theoretical true value.
Exponent Calculator
Calculate base raised to any positive, negative, or fractional power (x^y) with step-by-step expansion.
Binary Calculator
Convert numbers between Binary (base 2), Decimal (base 10), Hexadecimal (base 16), and Octal (base 8) with bitwise operations.
Hex Calculator
Convert Hexadecimal numbers to Decimal, Binary, and ASCII text, and perform hexadecimal arithmetic.
Half-Life Calculator
Calculate radioactive decay, remaining isotope quantity, decay constant, and elapsed time.
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0, find real and complex roots, discriminant, and parabola vertex.
Log Calculator
Calculate natural logarithm ln(x), common logarithm log10(x), binary log log2(x), and log with arbitrary base b.
Ratio Calculator
Solve proportions (A : B = C : D), simplify ratios to lowest terms, and scale aspect ratios.
Root Calculator
Calculate square roots (√x), cube roots (∛x), and arbitrary nth roots (ⁿ√x) with exact simplification.
Least Common Multiple (LCM) Calculator
Find the Least Common Multiple (LCM) of two or more numbers with prime factorization steps.
Greatest Common Factor (GCF) Calculator
Find the Greatest Common Factor (GCF / GCD / HCF) of two or more integers using Euclidean algorithm.
Factor Calculator
Find all integer factors, factor pairs, prime factorization, and prime status of any number.
Rounding Calculator
Round numbers to nearest integer, tenths, hundredths, thousandths, or specific significant figures.
Matrix Calculator
Perform 2x2 and 3x3 matrix addition, subtraction, multiplication, determinant, transpose, and inverse.
Scientific Notation Calculator
Convert standard numbers to scientific notation (a × 10^b) and perform arithmetic in scientific notation.
Big Number Calculator
Perform arbitrary-precision arithmetic (+, -, ×, ÷, %, power) on extremely large integers up to thousands of digits.
Statistics
Standard deviation, sample size, probability, permutations, combinations, Z-scores, and confidence intervals.
Standard Deviation Calculator
Calculate sample standard deviation (s), population standard deviation (σ), variance, mean, and sum of squares.
Number Sequence Calculator
Generate and analyze Arithmetic, Geometric, and Fibonacci sequences with nth term formulas and sum of terms.
Sample Size Calculator
Determine required survey sample size based on total population, confidence level (90%, 95%, 99%), and margin of error.
Probability Calculator
Calculate probabilities of single events, independent events P(A ∩ B), unions P(A ∪ B), and conditional probability.
Statistics Calculator
Comprehensive statistical summary: Mean, Median, Mode, Min, Max, Range, Quartiles (Q1, Q3), and Interquartile Range (IQR).
Mean/Median/Mode/Range Calculator
Quickly compute central tendencies: arithmetic mean, median value, mode frequency, and range for any dataset.
Permutation and Combination Calculator
Calculate Permutations nPr (order matters) and Combinations nCr (order does not matter).
Z-score Calculator
Calculate standard Z-score, percentile ranking, and two-tailed p-value from normal distribution.
Confidence Interval Calculator
Calculate confidence interval range and margin of error for a sample mean at 90%, 95%, or 99% confidence level.
Geometry
Triangles, circles, 3D volume, surface area, slope, distance, and Pythagorean theorem.
Triangle Calculator
Solve any triangle (SSS, SAS, ASA, AAS): find all missing sides, angles, perimeter, and area via Heron's formula.
Volume Calculator
Calculate 3D volume for cubes, rectangular prisms, cylinders, spheres, cones, pyramids, and capsules.
Slope Calculator
Find the slope (m), line equation (y = mx + b), angle of inclination, and distance between two coordinate points.
Area Calculator
Calculate 2D surface area for rectangles, circles, triangles, trapezoids, ellipses, and parallelograms.
Distance Calculator
Calculate 2D and 3D Euclidean distance and Manhattan distance between two points: d = √((x2-x1)² + (y2-y1)²).
Circle Calculator
Calculate circle Radius, Diameter, Circumference, and Area from any single known dimension.
Surface Area Calculator
Calculate total external surface area for cubes, rectangular prisms, spheres, cylinders, and cones.
Pythagorean Theorem Calculator
Solve a² + b² = c² to find the hypotenuse or missing leg of any right-angled triangle.
Right Triangle Calculator
Solve right triangles with trigonometry: sine, cosine, tangent, missing sides, and complementary angles.