The original calculator was invented in the 17th century by a Frenchman called Blaise Pascal! He was just 18 years old, and wanted to help his father do his tax calculations.

A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.

Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information.

Oct 29, 2025 · Use this basic calculator online for math with addition, subtraction, division and multiplication. The calculator includes functions for square root, percentage, pi, exponents, powers …

Perfect for students, professionals, and everyday users, this online calculator provides accurate results for basic arithmetic, scientific functions, and more. Enjoy the convenience of free, ad-free …

Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, …

The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any arithmetic you need.

An extensive collection of free, highly-rated online calculators and converters covering finance, construction, education, health, cooking and math for everyday use. Trusted by millions - over 8 …

Free online calculators for everything. Some solve problems, some satisfy curiosity and some simply for fun.

Free online calculator with advanced functions for scientific calculations, percentages, fractions, exponential functions, logarithms, trigonometric functions, statistics, and more.