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 …

Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information.

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 …

Memory plus button adds the number displayed to the contents of the memory. Memory minus button subtracts the number displayed from the contents of the memory. Square root button is used to …

Calculators for math, finance, and more. Free tools for students, professionals, and everyday calculations.

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 with a …

Type your expressions, use Enter to calculate, Backspace to delete, and arrow keys to move around. How do I calculate sine, cosine, or tangent? Switch to Scientific Mode. You can use sin (x), cos (x), …

Free online calculators for finance, health, math, science, and more. Calculate anything instantly with our easy-to-use tools and accurate expert guides.