From averages and ratios to fractions and the quadratic formula, these calculators handle common math problems quickly and accurately — useful for students, teachers, and everyday problem-solving.
Math Calculators
Math Calculators
Math Calculators
GCF Calculator
Find the greatest common factor (GCF) of two or more numbers.
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Math Calculators
LCM Calculator
Find the least common multiple (LCM) of two or more numbers.
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Math Calculators
Mean, Median and Mode Calculator
Calculate the mean, median, mode, and range of a data set.
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Math Calculators
Percentage Calculator
Calculate what one number is as a percentage of another, or find a percentage of a value.
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Math Calculators
Proportion Calculator
Solve a proportion a/b = c/x for the missing value.
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Math Calculators
Quadratic Formula Calculator
Solve for x in ax² + bx + c = 0 using the quadratic formula.
Calculate →Frequently Asked Questions
What kinds of calculators are in Math Calculators?
This category includes all of Calculate Wiki's math calculators. Browse the list above to find the one you need.
Are these calculators free?
Yes, every calculator on Calculate Wiki is free to use with no sign-up required.