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

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.

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 …

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

Use the best online calculator for all your math needs on PC and smartphones. The free calculator allows you to quickly and accurately perform arithmetic, calculate percentages, raise to a power or …

A simple online calculator. Allows embedding and includes frequently asked questions on the memory and percentage buttons.

Our calculator will display the answer instantly, saving you time and effort. Try our Online Calculator now and discover the convenience of quick and accurate calculations anytime you need them!

Use our free online calculator for instant results. Supports percentages, fractions, equations, and more. No signup required.

Basic Online Calculator with 10-digit keypad and 4 functions to add, subtract, multiply and divide numbers. Includes basic handheld calculator functions for square, square root, percent, sign change, …

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