Math & Statistics
Scientific Calculator
Evaluate arithmetic and scientific expressions with trigonometry, inverse functions, logarithms, powers, roots, constants, factorials, percent, history, and DEG or RAD modes.
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Calculator collection
Math & Statistics
Solve expressions, fractions, ratios, equations, geometry, statistics, and probability problems.
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Math & Statistics
Fraction & Mixed Number Calculator
Add, subtract, multiply, divide, simplify, and compare proper, improper, or mixed-number fractions with exact results plus decimal and percentage conversions.
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Math & Statistics
Ratio & Proportion Calculator
Solve a missing proportion value, reduce or scale a ratio, compare two ratios, and convert the result into a unit rate, decimal, and percentage.
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Math & Statistics
Mean, Median, Mode & Range Calculator
Paste a numeric data set to calculate count, sum, mean, median, modes, minimum, maximum, range, quartiles, interquartile range, and sorted observations.
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Math & Statistics
Standard Deviation & Variance Calculator
Calculate population or sample variance, standard deviation, mean, squared deviations, standard error, and coefficient of variation from pasted numeric data.
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Math & Statistics
Triangle Solver Calculator
Solve SSS, SAS, ASA, AAS, or SSA triangles for every side and angle plus perimeter, area, altitudes, inradius, circumradius, and ambiguous solutions.
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Math & Statistics
Quadratic Equation Calculator
Solve ax² + bx + c = 0 with stable real or complex roots, then inspect the discriminant, vertex, symmetry axis, intercepts, opening direction, factors, and graph.
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Math & Statistics
Probability & Combinatorics Calculator
Calculate event odds and complements, two-event unions and intersections, exact or cumulative binomial probabilities, and BigInt-safe permutations and combinations.
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