Math Calculators
Free online calculators for everyday math problems — percentages, fractions, ratios, exponents, and more. Enter values and get instant results with step-by-step explanations.
Percentage Calculator
Calculate percentages, percent of a number, and percentage change.
Percentage Increase Calculator
Find the percentage increase between two values.
Percentage Decrease Calculator
Calculate the percentage decrease between two values.
Percent Difference Calculator
Find the relative percent difference between two numbers.
Percentage to Fraction
Convert any percentage to a simplified fraction.
Ratio Calculator
Simplify ratios and solve proportions.
Proportion Calculator
Solve proportions and cross-multiply equations.
Average Calculator
Calculate the average (arithmetic mean) of any set of numbers.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
Mixed Number Calculator
Convert and calculate with mixed numbers and improper fractions.
Simplify Fractions
Reduce any fraction to its lowest terms.
Decimal to Fraction
Convert any decimal number to a fraction.
Fraction to Decimal
Convert any fraction to its decimal equivalent.
GCF Calculator
Find the Greatest Common Factor of two or more numbers.
LCM Calculator
Find the Least Common Multiple of two or more numbers.
GCF & LCM Calculator
Find both GCF and LCM simultaneously.
Scientific Notation Calculator
Convert numbers to and from scientific notation.
Significant Figures Calculator
Round numbers to a given number of significant figures.
Rounding Calculator
Round numbers to any decimal place.
Exponent Calculator
Calculate base raised to any power (bⁿ).
Square Root Calculator
Find the square root of any positive number.
Cube Root Calculator
Find the cube root of any number.
Absolute Value Calculator
Calculate the absolute value |x| of any number.
Log Calculator
Calculate logarithms with any base (log, ln, log₁₀).
Antilog Calculator
Calculate the antilogarithm (inverse log) of a number.
Factors Calculator
Find all factors of a number.
Prime Number Calculator
Check if a number is prime and find prime factors.
Modulo Calculator
Calculate the remainder (modulo) of a division.
Factorial Calculator
Calculate the factorial of any positive integer.
Permutation Calculator
Calculate nPr — ordered arrangements.
Combination Calculator
Calculate nCr — unordered selections.
Arithmetic Sequence Calculator
Find nth term and sum of an arithmetic sequence.
Geometric Sequence Calculator
Find nth term and sum of a geometric sequence.
Sequence Calculator
Identify and extend number sequences.
Fibonacci Calculator
Calculate Fibonacci numbers and sequences.
Order of Operations Calculator
Evaluate expressions using PEMDAS/BODMAS rules.
Fraction to Percent
Convert any fraction to a percentage.
Percent to Fraction
Convert any percentage to a simplified fraction.
Decimal to Percent
Convert any decimal to a percentage.
Percent to Decimal
Convert any percentage to a decimal.
Prime Factorization
Find the prime factorization of any number.
Equivalent Fractions
Find equivalent fractions for any fraction.
Mixed Number to Improper Fraction
Convert mixed numbers to improper fractions.
Improper Fraction to Mixed Number
Convert improper fractions to mixed numbers.
Scientific Notation to Decimal
Convert scientific notation to standard decimal.
Decimal to Scientific Notation
Convert decimal numbers to scientific notation.
Ratio Simplifier
Simplify any ratio to its lowest terms.