Free Online Calculators
Finance, math, health, construction, and everyday tools in one searchable catalog.
4 calculators
Your calculators
Math
Quadratic Equation Calculator — Roots, Steps & Graph
Solve quadratic equations in standard or vertex form, or build one from roots. See real or complex roots, discriminant, vertex, steps, forms, points, and a graph.
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Math
Fraction Calculator — Mixed Numbers, Steps & Visuals
Calculate, simplify, convert, compare, and order exact fractions; generate equivalents and LCD forms or explore an interactive fraction wall.
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Math
Scientific & Graphing Calculator — DEG/RAD, History & Memory
Evaluate safe scientific expressions with DEG or RAD mode, memory, history, result formatting, and an interactive graph for up to three functions.
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Math
Random Number Generator — One Number or a Unique Sample
Generate one number from a clearly labelled inclusive range, or create, sort, copy and download a larger random sample.
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