Free STEM Calculators & Tools

Essential calculators for math, chemistry, physics, and statistics. Built for students, by students.

Quadratic Formula Calculator

Solve quadratic equations instantly. Enter coefficients and get real or complex roots with step-by-step solutions.

Derivative Calculator

Calculate derivatives of mathematical functions. Supports polynomial, trigonometric, exponential, and logarithmic functions.

Matrix Calculator

Perform matrix operations: addition, subtraction, multiplication, determinant, inverse, and transpose.

Limit Calculator

Evaluate limits numerically. Approach values from left, right, or both sides. Identify indeterminate forms.

Riemann Sum Calculator

Approximate definite integrals using Riemann sums. Compare left, right, midpoint, and trapezoidal methods.

Determinant Calculator

Calculate matrix determinants with step-by-step cofactor expansion. Supports 2x2, 3x3, and larger matrices.

Systems of Equations Solver

Solve systems of linear equations. Supports 2x2 and 3x3 systems with step-by-step solutions.

Vector Operations Calculator

Calculate dot product, cross product, and angle between vectors. Find projections and unit vectors.

Binomial Probability Calculator

Calculate binomial probabilities and cumulative distributions. Find mean, variance, and standard deviation.

Normal Distribution Calculator

Calculate probabilities for normal distributions. Convert between z-scores and raw values.

Prime Factorization Calculator

Find prime factorization of any number. Calculate GCD, LCM, and check primality.

Modular Arithmetic Calculator

Perform modular arithmetic operations. Calculate modular inverse, exponentiation, and solve congruences.

Arc Length Calculator

Calculate arc length for circles and curves. Find sector area and central angle.

Eigenvalue Calculator

Calculate eigenvalues and eigenvectors of 2x2 matrices. Visualize the transformation.

Taylor Series Calculator

Generate Taylor and Maclaurin series expansions. Visualize polynomial approximations of functions.

Polar to Cartesian Converter

Convert between polar and Cartesian coordinates. Visualize points and curves in both systems.

Complex Number Calculator

Perform operations on complex numbers. Convert between rectangular and polar form, find roots and powers.

Logarithm Calculator

Calculate logarithms with any base. Convert between log, ln, and log10. Apply log properties.

Permutation & Combination Calculator

Calculate permutations, combinations, and factorials. Solve counting problems.

Partial Fractions Calculator

Decompose rational expressions into partial fractions. Essential for integration.

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