Free Math Calculators

Solve common math problems quickly with our free online math calculators. Calculate fractions, averages, ratios, percentages, GCD, LCM and more.

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Percentage Calculator

Calculate percentages, percentage increases, decreases and more.

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Calculate the average or mean of a list of numbers.

Add, subtract, multiply and divide fractions easily.

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Calculate and simplify ratios quickly and easily.

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Find the greatest common divisor and least common multiple.

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Check whether a number is prime or not.

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Generate random numbers within any range.

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Calculate percentage increases and decreases between numbers.

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Convert numbers into words quickly and easily.

Easy Online Tool provides simple and free mathematics calculators for students, teachers, professionals and anyone who needs quick calculations.

Our math tools are designed to work directly in your browser without requiring downloads or registration.

We are continuously adding new calculators to make Easy Online Tool a useful collection of free online tools for everyday calculations.