🧮 Math Calculators

Algebra, geometry, statistics & more — 11 free tools, no signup required.

🧮 Scientific Calculator Free advanced online scientific calculator. Perform trigonometric, logarithmic, exponential, and algebraic calculations with degrees/radians, history… 💯 Percentage Calculator Free online percentage calculator with 3 modes: find what percent of a number, what percentage one number is of another, and percentage change… 📐 Area Calculator Free area calculator — area of a rectangle, square, circle, triangle, trapezoid, parallelogram, ellipse or sector, with conversions to square feet, acres and hectares. 📦 Volume Calculator Free volume calculator — volume of a cube, box, cylinder, sphere, cone, pyramid or hemisphere, with conversions to liters, cubic feet and US gallons. ➗ Fraction Calculator Free online fraction calculator. Add, subtract, multiply, and divide standard fractions or mixed numbers with detailed step-by-step algebraic… 📐 Quadratic Equation Solver Free online quadratic equation solver. Solve any quadratic equation of the form ax² + bx + c = 0. Handles real & complex roots, with complete… 📊 Statistics Calculator Free online statistics calculator. Input data to calculate Mean, Median, Mode, Range, Variance, and Standard Deviation with dynamic step-by-step… 🔺 Triangle Calculator Free advanced online triangle calculator. Solve triangles using SSS, SAS, ASA, AAS, or SSA configurations. Computes area, perimeter, angles, and… 🎲 Random Number Generator Free online random number generator and raffle picker. Generate random integers without duplicates, sort results, and run interactive name draws with… 🧪 Scientific Notation Calculator Free online scientific notation calculator. Convert numbers to scientific & engineering notation, count significant figures, and perform arithmetic… 🖨️ Tape Calculator Free online tape calculator. Keep track of calculations with a scrollable audit tape. Add notes, adjust taxes, split totals, copy and print your…