Math Calculators

Free clean online arithmetic calculator with standard operations, percentage, memory recall (M+, M-, MR), and keyboard support.

Advanced scientific calculator with trigonometry (sin, cos, tan), logarithms, exponential powers, factorials, and constants (π, e).

Solve linear and quadratic equations step by step with discriminant analysis and exact roots.

Calculate area, perimeter, surface area, and volume for 2D and 3D geometric shapes with instant formulas.

Calculate mean, median, mode, sample and population standard deviation, variance, and range for any dataset.

Calculate single-event probability, independent compound probabilities, combinations (nCr), and permutations (nPr).

Add, subtract, multiply, and divide fractions with mixed numbers, common denominators, and instant reduction to simplest form.

Calculate percentage of a number, percentage increase and decrease, and percentage change between two values.

Calculate college and high school semester and cumulative Grade Point Average (GPA) on standard 4.0 weighted and unweighted scales.

Calculate the exact score you need on your final exam to achieve your desired target class grade.