Math
Basic Calculator
Simple and intuitive basic calculator with memory functions (M+, M-, MR), answer recall (Ans), rounding (RND), sign change (±), and all standard arithmetic operations—the best basic calculator in the world.
Math Calculators
Algebra & finance helpers
Solve classroom math, analyze statistics, and simulate finance scenarios. Add your preferred tools here as we build them.
Math
Average Calculator
Calculate the average (arithmetic mean) of numbers with comprehensive statistics table including sum, count, median, geometric mean, largest, smallest, and range—the best average calculator in the world.
Statistics
P-value Calculator
Calculate p-values from Z-scores or vice versa for normal distributions. Includes visual normal distribution curves, left tail, right tail, two-tailed tests, and comprehensive explanations—the best p-value calculator in the world.
Math
Scientific Calculator
Premium keypad with trig, logarithms, degree/radian toggle, memory registers, and calculation history—built to outperform calculator.net.
Math
Log Calculator (Logarithm)
Calculate logarithms with any base including natural log (e). Includes comprehensive educational content covering log rules (product, quotient, power, change of base, reciprocal), formulas, examples, and applications—the best log calculator in the world.
Math
Big Number Calculator
Compute very large numbers with arbitrary precision. Supports integers, decimals, E-notation, and all operations (X+Y, X-Y, X*Y, X/Y, X^Y, √X, X², X!, MOD, GCD, LCM). Includes Powers of 10 chart and comprehensive educational content—the world's best big number calculator.
Math
Matrix Calculator
Perform matrix operations including addition, subtraction, multiplication, division, determinant, inverse, adjugate, trace, transpose, and power operations. Includes comprehensive educational content with all exact formulas—the world's best matrix calculator.
Math
Fraction Calculator
Add, subtract, multiply, divide, simplify, convert to decimals, and work with huge numerators using instant mixed-number output.
Math
Long Division Calculator
Perform long division with step-by-step visual solutions, calculate quotients with remainders, mixed numbers, and decimal results. Includes comprehensive educational content and all division formulas—the best long division calculator in the world.
Math
Percentage Calculator
Solve "what is X% of Y", reverse percent problems, difference, and percentage change with calculator.net-level explanations.
Math
Percent Error Calculator
Calculate percentage error between observed and true values with step-by-step solutions, comprehensive formulas, absolute error, relative error, and educational content—the best percent error calculator in the world.
Math
Random Number Generator
Generate single or bulk random integers/decimals with limit controls, precision, and educational notes about randomness.
Math
Probability Calculator
Solve unions, intersections, complements, XOR expressions, series probabilities, and normal distribution areas with full reference text.
Math
Z-score Calculator
Convert raw scores to z-scores, map z to probability, evaluate two-tail regions, and consult an embedded standard normal table.
Geometry
Triangle Calculator
Solve triangles from any combo of sides/angles, then review triangle facts, area formulas, medians, inradius, and circumradius.
Geometry
Pythagorean Theorem Calculator
Calculate the missing side of a right triangle using a² + b² = c². Includes comprehensive educational content, diagrams, formulas, examples, and algebraic proof—the best Pythagorean Theorem calculator in the world.
Math
Greatest Common Factor Calculator
Calculate the GCF of multiple numbers using prime factorization or Euclidean algorithm. Includes step-by-step solutions, comprehensive educational content, formulas, and examples—the best GCF calculator in the world.
Math
Least Common Multiple Calculator
Calculate the LCM of multiple numbers using prime factorization or GCD method. Includes step-by-step solutions showing prime factorization, LCM calculation, and GCD. Comprehensive educational content covering brute force, prime factorization, and GCD methods with examples—the best LCM calculator in the world.
Math
Common Factor Calculator
Find common factors of multiple numbers with step-by-step factor breakdowns, GCF calculation, and comprehensive educational content. Shows all factors for each number and identifies shared factors—the best common factor calculator in the world.
Math
Rounding Calculator
Round numbers to any precision using 8 different rounding methods. Includes round half up/down, round up/down, round half to even/odd, round half away/towards zero, and rounding to fractions—the best rounding calculator in the world.
Math
Scientific Notation Calculator
Convert numbers to scientific notation, E-notation, and engineering notation. Perform arithmetic operations with scientific notation including addition, subtraction, multiplication, division, and powers—the best scientific notation calculator in the world.
Math
Prime Factorization Calculator
Calculate the prime factorization of any number with visual factor tree. Includes trial division method, comprehensive educational content about prime numbers, and prime factorization of common numbers—the best prime factorization calculator in the world.
Math
Factor Calculator
Calculate factors, factor pairs, and prime factorization of any number with visual factor tree. Includes comprehensive educational content about factors, prime factorization, factor trees, and computational complexity—the best factor calculator in the world.
Geometry
Circle Calculator
Calculate radius, diameter, circumference, and area with comprehensive educational content about circles, parts of a circle, the constant π, and circle formulas—the best circle calculator in the world.
Geometry
Area Calculator
Calculate areas for rectangles, triangles, trapezoids, circles, sectors, ellipses, and parallelograms with calculator.net-level narratives.
Statistics
Statistics Calculator
Calculate mean, median, mode, standard deviation, variance, geometric mean, and more. Includes calculator keypad, data visualization charts, and comprehensive educational content—the best statistics calculator in the world.
Statistics
Standard Deviation Calculator
Compute population/sample σ, view variance, steps, frequency tables, and margin-of-error confidence intervals like calculator.net.
Statistics
Confidence Interval Calculator
Calculate confidence intervals and margin of error for sample means. Includes step-by-step solutions, error bar visualization, Z-values table, and comprehensive educational content—the best confidence interval calculator in the world.
Math
Permutation and Combination Calculator
Calculate permutations (nPr) and combinations (nCr) for selecting items from a set. Includes step-by-step solutions, formulas, examples, and comprehensive educational content covering permutations, combinations, and their applications—the best permutation and combination calculator in the world.
Math
Number Sequence Calculator
Calculate arithmetic, geometric, and Fibonacci sequences with step-by-step solutions. Includes formulas, examples, and comprehensive educational content covering all sequence types—the best number sequence calculator in the world.
Math
Exponent Calculator
Calculate exponents and solve for base, exponent, or result. Includes step-by-step solutions, all exponent laws and rules with examples, and comprehensive educational content—the best exponent calculator in the world.
Math
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula. Includes step-by-step derivation, interactive graph visualization, and comprehensive educational content—the best quadratic formula calculator in the world.
Statistics
Sample Size Calculator
Calculate the minimum sample size needed for your survey or find the margin of error. Includes comprehensive educational content, z-score tables, formulas, and examples—the best sample size calculator in the world.
Geometry
Surface Area Calculator
Calculate the surface area of common 3D shapes including sphere, cone, cube, cylinder, rectangular tank, capsule, spherical cap, frustum, ellipsoid, and pyramid. Includes formulas, examples, and unit conversion—the best surface area calculator in the world.
Math
Binary Calculator
Perform binary arithmetic and conversions with step-by-step explanations and reference tables.
Math
Hex Calculator
Perform hexadecimal arithmetic operations (add, subtract, multiply, divide) and convert between hex, decimal, and binary. Includes comprehensive educational content, conversion tables, and multiplication table—the best hex calculator in the world.
Physics
Half-Life Calculator
Calculate half-life, remaining quantity, mean lifetime, and decay constant with formula references.
Geometry
Slope Calculator
Find slope from two points or from slope/angle/distance with triangle diagrams and derivations.
Geometry
Right Triangle Calculator
Calculate all properties of a right triangle from any 2 given values. Includes visual diagram, special right triangles (30-60-90 and 45-45-90), formulas, and comprehensive educational content—the best right triangle calculator in the world.
Math
Root Calculator
Square, cube, and n-th root solver with radical diagrams, estimation walkthroughs, and precision controls inspired by calculator.net.
Math
Mean, Median, Mode, Range Calculator
Analyze datasets with automatic mean, median, mode, range, geometric mean, column charts, and calculator.net reference text.
Math
Ratio Calculator
Solve A:B = C:D proportions, scale ratios up or down, and view aspect-ratio reference tables with calculator.net level detail.
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