Standard Calculator Use this standard tape calculator for everyday arithmetic with a running calculation tape.

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.

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.

This free percentage calculator computes a number of values involving percentages, including the percentage difference between two given values.

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, …

SolveCalc is a free calc solver and scientific calculator for students and teachers. Solve algebra, trigonometry, fractions, percentages and logarithms instantly with no download needed. Multiple …

Our Full Screen Online Calculator is an essential tool for anyone who needs to perform mathematical calculations quickly and easily. With a user-friendly interface and a range of functions, our calculator …

Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.