Math
Percentage Calculator
Calculate any percentage operation: find a percentage of a number, determine percentage change, or solve for the whole from a part.
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Math & Statistics Calculators
Solve percentages, fractions, averages, standard deviation, and algebra problems
22 free calculators
Math
GPA Calculator
Calculate your cumulative GPA on a 4.0 scale by entering your course grades and credit hours for accurate academic tracking.
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Math
Grade Calculator
Calculate your current class grade and determine what score you need on your final exam to achieve your target grade.
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Math
Scientific Calculator
A full-featured scientific calculator supporting trigonometry, logarithms, exponents, factorials, and other advanced math operations.
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Math
Fraction Calculator
Perform arithmetic operations with fractions including addition, subtraction, multiplication, division, and simplification.
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Math
Ratio Calculator
Calculate, simplify, and solve ratios and proportions. Find missing values and equivalent ratios for any set of numbers.
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Math
Average Calculator
Calculate the mean, median, mode, and range of a data set. Enter any set of numbers to get comprehensive statistical averages.
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Math
Standard Deviation Calculator
Calculate the standard deviation, variance, and other descriptive statistics for a data set with population or sample methods.
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Math
Probability Calculator
Calculate the probability of events including single events, combined events (AND/OR), and complementary probabilities.
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Math
Triangle Calculator
Calculate the area, perimeter, angles, and missing sides of any triangle using the sides, angles, or a combination of both.
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Math
Square Root Calculator
Calculate the square root, cube root, or any nth root of a number with decimal precision and simplified radical form.
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Math
Exponent Calculator
Calculate the power of any number raised to an exponent, including positive, negative, fractional, and zero exponents.
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Math & Science
Logarithm Calculator
Calculate logarithms with any base including common log (base 10), natural log (ln), and custom bases. Solve log equations instantly.
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Math & Science
Quadratic Equation Solver
Solve quadratic equations of the form ax²+bx+c=0 using the quadratic formula. Get both real and complex solutions.
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Math & Science
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem. Enter two known sides to calculate the third.
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Math & Science
Permutation Calculator
Calculate permutations nPr (ordered arrangements) using the formula n!/(n-r)!. Find the number of ways to arrange r items from n items.
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Math & Science
Combination Calculator
Calculate combinations nCr (unordered selections) using the formula n!/(r!(n-r)!). Find the number of ways to choose r items from n items.
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Math & Science
LCM and GCF Calculator
Find the LCM (Least Common Multiple) and GCF (Greatest Common Factor) of two or more numbers using the Euclidean algorithm.
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Math & Science
Prime Factorization Calculator
Find the prime factorization of any number by breaking it down into its prime number factors using trial division.
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Math & Science
Binary Converter
Convert between binary (base 2), decimal (base 10), and octal (base 8) number systems. Perfect for computer science and programming.
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Math & Science
Hexadecimal Converter
Convert between hexadecimal (base 16), decimal (base 10), and binary (base 2). Essential for web colors, programming, and computer science.
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Math & Science
Modulo Calculator
Calculate the modulo (remainder) of division operations. Find what's left over when dividing one number by another.
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