Free Math Calculators
Percentage, fractions, algebra, geometry, and unit conversion tools. All tools are free, accurate, and require no account.
Percentage Calculator
Calculate percentages, percent change, and percent of a number.
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24 calculatorsPercentage Calculator
Calculate percentages, percent change, and percent of a number.
Fraction Calculator
Add, subtract, multiply, and divide fractions instantly.
Ratio Calculator
Simplify ratios and solve ratio equations step by step.
Discount Calculator
Calculate final price after any discount percentage.
Margin Calculator
Calculate profit margin and markup for products and services.
Square Root Calculator
Find the square root or nth root of any number.
Exponent Calculator
Calculate powers and exponents for any base and exponent.
Logarithm Calculator
Compute natural log, base-10 log, or any custom base.
Scientific Calculator
Full-featured scientific calculator for complex calculations.
Triangle Calculator
Solve triangles — find missing sides, angles, and area.
Area Calculator
Calculate area of circles, rectangles, triangles, and more.
Volume Calculator
Find volume of 3D shapes including spheres, cylinders, and boxes.
Pythagorean Theorem Calculator
Solve for any side of a right triangle using the Pythagorean theorem.
Greatest Common Factor
Find the greatest common factor of two or more numbers.
Least Common Multiple
Calculate the least common multiple for any set of numbers.
Prime Factorization
Break down any number into its prime factors.
Random Number Generator
Generate random numbers within any range instantly.
Average Calculator
Calculate mean, median, mode, and range for any dataset.
Standard Deviation Calculator
Compute standard deviation and variance for statistical data.
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula.
Unit Converter
Convert between units of length, weight, temperature, volume, and more.
Currency Converter
Convert between world currencies at current exchange rates.
Binary Calculator
Add, subtract, and convert binary, decimal, octal, and hexadecimal.
Roman Numeral Converter
Convert between Roman numerals and Arabic numbers.
Explore Other Categories
We cover all major calculator categories for your everyday needs.
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Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and amortization schedule.
Loan Calculator
Estimate monthly payments and total cost for any personal or auto loan.
Compound Interest Calculator
See how your investments grow with the power of compound interest.
Investment Calculator
Project future value of investments with regular contributions.