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.

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 …

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 …

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

This online calculator can handle a range of functions, including basic arithmetic, percentages, fractions, and more. If you need to perform more advanced mathematical calculations, try one of our other …

This is an online scientific calculator with double-digit precision that supports both button click and keyboard type.

This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.