Math, Science & Engineering
A complete collection of scientific and engineering calculation tools for students, educators, professionals, and enthusiasts. From basic unit conversions to advanced physics simulations, financial calculations, and specialized engineering tools. Solve equations, convert measurements, calculate loan payments, simulate physical phenomena, balance chemical equations, design electrical circuits, and estimate construction costs—all with accuracy and ease.
Count significant figures in any number, round to a chosen precision, and run arithmetic that applies the correct sig fig rules automatically.
Find the slope, midpoint, and distance between two points on a coordinate plane, with line equations, an interactive graph, and step-by-step solutions.
Calculate sine, cosine, tangent and their inverse functions instantly. Switch between degrees and radians with exact values for special angles.
Calculate combinations (nCr) and permutations (nPr) instantly with step-by-step solutions for probability and counting problems.
Generate arithmetic, geometric, Fibonacci, and custom number sequences. See the nth term, the sum, and number patterns instantly in your browser.
Simplify ratios, solve a proportion for a missing value, convert a ratio to a fraction or percentage, and split an amount by ratio. Results update as you type.
Find the derivative of any function with detailed step-by-step solutions, supporting the power, product, quotient and chain rules plus higher-order derivatives.
Solve linear, quadratic, and systems of equations with detailed step-by-step solutions instantly.
Calculate mean, median, mode, standard deviation, variance, and more from any dataset with step-by-step solutions.
Plot math functions on an interactive coordinate plane. Graph polynomials, trig, and exponentials with zoom, pan, live coordinates, and PNG export.
Add, subtract, multiply, transpose, invert, and find the determinant or power of matrices up to 10×10, with decimal or exact fraction results.
Calculate area, perimeter, volume, and surface area for 2D and 3D shapes. Supports circles, rectangles, triangles, cubes, spheres, cylinders, and more.