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Math Calculators

Free math calculators for everyday questions, from quick checks to detailed breakdowns.

Math tools (55)

  • Tested

    Fraction to Mixed Number Calculator

    Convert an improper fraction to a mixed number.

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  • Tested

    Fraction to Percent Calculator

    Convert a fraction to a percentage.

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  • Tested

    Fraction to Ratio Calculator

    Convert a fraction to a ratio.

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  • Tested

    Greater Than Less Than Calculator

    Compare two numbers.

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  • Tested

    Inch Fraction Calculator

    Convert decimal inches to the nearest fractional inch.

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  • Tested

    Least Common Denominator Calculator

    Least common denominator of fractions.

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  • Tested

    Least to Greatest Calculator

    Sort numbers in ascending or descending order.

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  • Tested

    Letters to Numbers Converter

    A=1 … Z=26 letter-number cipher.

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  • Tested

    Long Division Calculator

    Divide whole numbers to a chosen number of decimal places.

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  • Tested

    Mixed Number to Fraction Calculator

    Convert a mixed number to an improper fraction.

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  • Tested

    Modulo Calculator

    Remainder of a division, with floored and truncated conventions.

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  • Tested

    Multiplication Calculator

    Product of a list of numbers.

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All math calculators by topic (207)

Advanced

Algebra

Arithmetic

Basic

Calculus

Charts

Chemistry

Coordinates

Electrical

Fractions

Geometry

Matrices

Number Theory

Trigonometry

Vectors

Volume

About math calculators

Math Calculators help you turn a question into a clear, checkable answer. Each tool lists its inputs, shows the formula it relies on and explains how to read the result.

Browse by topic using the filters, or search for a specific tool. Tools that are still being built are clearly marked as previews and are not presented as finished calculators.

Frequently asked questions

Are the math calculators calculators free?

Yes. Every calculator on Calculator Atlas is free to use and requires no sign-up.

How are results verified?

A calculator is only published after its formula has been implemented, tested against reference values and reviewed. Pages still in development are labeled as previews.

Related categories

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