Math Calculators

Free online scientific calculator with 100 keys — trig (sin/cos/tan + inverse + hyperbolic), logs, powers, calculus (d/dx, ∫, Σ, lim), special functions (Γ, erf), programmer mode (HEX/OCT/BIN + bitwise), statistics (nCr, nPr, mean), memory + history.

Calculate mean, median, mode, std deviation, quartiles and IQR from any list of numbers.

Calculate percentages three ways — X% of Y, X is what % of Y, % change.

Add, subtract, multiply and divide fractions — auto-simplifies and shows decimal + mixed number.