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.

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 …

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, …

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

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 …

Your all-in-one online calculator offering basic, scientific, and graphing calculators for quick and accurate calculations anytime, anywhere.

Free basic online calculator with percentage calculator, square root, customizable themes, sound effects, and full keyboard support. Perfect for students, professionals, and everyday math …

Whether you need help with basic arithmetic, complex mathematical functions, or specialized financial calculations, Now Calculator provides an intuitive platform for all your needs.