Math
Math calculators.
Percentages, fractions, and the arithmetic that shows up in homework, shopping, and work. Each calculator shows the steps so you can check the method as well as the answer.
12 tools
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Math
Percentage Decrease Calculator
Calculate a percentage decrease and the absolute change between two values.
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Percentage Calculator
Find a percentage of a number, what percent one number is of another, or percent change.
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Fraction Calculator
Add, subtract, multiply, and divide fractions with exact simplified results.
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Average Calculator
Calculate the arithmetic mean, sum, and count of a list of numbers.
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Ratio Calculator
Simplify multi-term ratios and solve missing values in equivalent ratios.
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Proportion Calculator
Solve a/b = c/d for one missing value using cross multiplication.
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Mean, Median & Mode Calculator
Calculate mean, median, mode, range, count, sum, minimum, and maximum.
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Standard Deviation Calculator
Calculate population and sample variance and standard deviation.
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GCF & LCM Calculator
Find the greatest common factor and least common multiple of two or more integers.
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Scientific Notation Calculator
Convert and calculate with ordinary decimals and normalized scientific notation.
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Definite Integral Calculator
Evaluate a definite integral numerically and see the area under the curve on a graph.
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Derivative Calculator
Differentiate any function symbolically with step-by-step rules and graph f(x) against f′(x).
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