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. · Simple online calculator with memory functions similar to a basic handheld calculator. Free simple calculator for adding, subtracting, multiplying, dividing. 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 calculations … Use the best online calculator for any math calculations on PC and smartphones. The free calculator allows you to quickly and accurately perform arithmetic, calculate percentages, raise to a power or take a root. Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, … · 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 with a … Free online calculators for everything. Some solve problems, some satisfy curiosity and some simply for fun. 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 million …