Online calculators for everything. Some solve problems, some satisfy curiosity.

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.

This free online calculator can be used for basic computations such as addition, subtraction, multiplication, division, and square roots.

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, …

Your all-in-one online calculator for quick and precise basic to scientific calculations. Easily perform addition, subtraction, multiplication, division, trigonometry, logarithms, and more with …

This is a simplified version of the online calculator. The full version you can get and use here: Calculator Entering commands from the keyboard For the work of the simple calculator You …

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

Jan 17, 2025 · Use our free calculator online for quick and accurate math calculations on the go. Compatible with all devices, it supports addition, subtraction, multiplication, division, and more …

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