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Free Math Tools Online
33 free tools — no signup required
Calculators and solvers for everyday math, statistics, and geometry. From basic percentages and averages to standard deviation, matrix operations, and quadratic equations. Also includes practical calculators for BMI, tips, discounts, GPA, and loan payments.
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Logarithm Calculator
Calculate logarithms with any base including natural log and log base 10.
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Exponent Calculator
Calculate powers and exponents including fractional and negative exponents.
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Modular Arithmetic Calculator
Perform modulo operations and explore modular arithmetic concepts.
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Quadratic Equation Solver
Solve quadratic equations (ax² + bx + c = 0) and find roots.