🔢 Mathematics

🔢Basic & Scientific Calculator — Free Online Free online calculator with standard and scientific modes — trig, logs, memory and more, right in your browser. %Percentage Calculator — Find %, % Change, % Of Calculate percentages, percentage change, and "what percent is X of Y" instantly, free online. √Power & Square Root Calculator Calculate exponents and square roots online for free. Enter any base and exponent, or find a square root. ÷GCD & LCM Calculator — Greatest Common Divisor Find the greatest common divisor (GCD) and least common multiple (LCM) of two numbers instantly, free. 𝑝Prime Number Checker — Is It Prime? Check instantly whether any number is prime with this free online prime number checker. !Factorial Calculator (n!) Compute the factorial of any number from 0 to 20 instantly, free online. ㏒Logarithm Calculator — ln, log10, Any Base Calculate natural log, log base 10, or logarithms in any base, free online. ∠Trigonometry Calculator — Sin, Cos, Tan Calculate sine, cosine and tangent for any angle in degrees or radians, free online. 𝑥²Quadratic Equation Solver — ax² + bx + c = 0 Solve any quadratic equation instantly and see real or complex roots, free online. ½Fraction Calculator — Add, Subtract, Multiply, Divide Add, subtract, multiply or divide fractions online, with results automatically simplified. ∶Ratio Calculator — Simplify or Solve Proportions Simplify any ratio or solve a proportion (a:b = c:d) instantly, free online. 📊Statistics Calculator — Mean, Median, Mode, StdDev Calculate mean, median, mode, standard deviation, variance and range from any list of numbers. 𝑛Permutation & Combination Calculator (nPr, nCr) Calculate permutations (nPr) and combinations (nCr) for any n and r instantly, free online. 01Number Base Converter — Binary, Octal, Hex, Decimal Convert numbers between binary, octal, decimal and hexadecimal instantly, free online. ⊞Matrix Calculator — Add, Subtract, Multiply 2×2 Add, subtract, multiply 2×2 matrices or find the determinant, free online. 🎲Random Number Generator Generate random whole numbers in any range, free and instant.