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Online calculators for everything. Some solve problems, some satisfy curiosity.
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www.online-calculator.com
Online Calculator
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.
www.desmos.com
Scientific Calculator - Desmos
A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.
www.calculatorsoup.com
Calculator
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 and rounding.
www.calculator.net
Calculator.net: Free Online Calculators - Math, Fitness, Finance,...
Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information.
calculator-1.com
The Best Free Online Calculator
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 take a root
mathda.com
MathDA - Online Scientific Calculator
Online scientific calculator from MathDA: perform calculations with basic math to equation solver, integral, derivative, matrix, vector, statistics...
web2.0calc.com
Web 2.0 scientific calculator
web2.0calc.com online calculator provides basic and advanced mathematical functions useful for school or college. You can operate the calculator directly from your keyboard, as well as using the buttons with your mouse.
okcalc.com
Online Calculator
Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History.
w3calc.com
Calculator - English
Your all-in-one online calculator for quick and precise basic to scientific calculations. Easily perform addition, subtraction, multiplication, division, trigonometry, logarithms, and more with our user-friendly interface.