Simple number or constant. Action that involves two numbers (i.e. 6+2). Action that requires one number (i.e. 40%). Clears something. Gives a result. Actions about the calculator or the tape. Number formating actions fractions and scientific notation.

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.

Root Index "n" , Start Root, , End Root. n. pi. π. 4. 4. 5. 5. 6. 6. times. ×. sin. cos

Simple online calculator with memory functions similar to a basic handheld calculator. Free simple calculator for adding, subtracting, multiplying, dividing.

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, Pi and memory.

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Calculator Soup is a comprehensive resource of professionally designed and programmed free online calculators. Here you will find free loan, mortgage, time value of money, math, algebra, trigonometry, fractions, physics, statistics, time & date and conversions calculators.

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

Jump into a new dimension of math. Have you ever felt like two dimensions isn't quite enough? The Desmos 3D Calculator lets you explore curves, surfaces, and points in all three dimensions.

Free online calculator with 51+ tools: scientific calculator, percentage calculator, BMI calculator, currency converter, unit converter, loan EMI, GPA calculator and more. No download, no signup required.