Fraction Calculator
Free fraction calculator supporting add, subtract, multiply and divide with automatic reduction.
Prime Check
Free online prime number checker, instantly tells if a number is prime with factorization.
Greatest Common Divisor
Free online GCD calculator, computes the greatest common divisor of two or more integers.
Least Common Multiple
Free online LCM calculator, computes the least common multiple with support for large numbers.
Factorial Calculator
Free online factorial calculator, computes n! for any non-negative integer, supports large numbers.
Fibonacci Sequence
Free online Fibonacci generator, produces the first N terms with support for large numbers.
Random Number Generator
Free online random number generator, customize min and max to generate one or more random integers.
Dice Roller
Simulate dice rolls online, supports d4, d6, d8, d10, d12, d20 with custom quantities.
Ratio Calculator
Use our online ratio calculator to solve unknown values in ratios, supports fractions and integers.
Square Calculator
Use our online square calculator to compute the square of any number instantly.
Average Calculator
Use our online average calculator to compute the mean of any set of numbers.
Trigonometry Calculator
Free online Trigonometry Calculator. Runs entirely in your browser, no data uploaded, ready to use.
Logarithm Calculator
Free online Logarithm Calculator. Runs entirely in your browser, no data uploaded, ready to use.
Quadratic Equation Solver
Free online Quadratic Equation Solver. Runs entirely in your browser, no data uploaded, ready to use.
Prime Number List Generator
Free online Prime Number List Generator. Runs entirely in your browser, no data uploaded, ready to use.
Exponentiation Calculator
Free online power calculator supporting integer, decimal, and negative exponents, quickly calculating any number raised to a power.
Root Calculator
Free online root calculator that supports any root. Enter the radicand and index to get instant results.
Permutation and Combination Calculator
Free online permutation and combination calculator. Enter total n and selection k to quickly calculate permutations P(n,k) and combinations C(n,k).
Prime Factorization
Free online prime factorization tool. Enter a positive integer to quickly get its prime factorization.
Roman Numeral Conversion
Free online Roman numeral converter, supports Arabic to Roman and Roman to Arabic, two-way conversion.
Fraction Decimal Conversion
Free online fraction and decimal conversion tool, supports proper fractions, improper fractions, decimals to fractions, and simplification.
Pythagorean Theorem Calculation
Free online Pythagorean theorem calculator. Given two sides, find the third side. Supports input of any two sides.
Scientific Notation Conversion
Free online scientific notation converter tool, supports conversion from regular numbers to scientific notation and from scientific notation to regular numbers.
Geometry Area Calculation
Free online geometric area calculator, supports area calculation for various shapes such as circle, triangle, rectangle, trapezoid, parallelogram, etc. Enter parameters to get quick results, suitable for study, engineering, and daily use.
