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Online calculators for everything. Some solve problems, some satisfy curiosity.
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www.desmos.com
ScientificCalculator - Desmos
A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.
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.calculator.net
Basic Calculator
This free online calculator can be used for basic computations such as addition, subtraction, multiplication, division, and square roots.
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.
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.
mathda.com
MathDA - Online Scientific Calculator
Online scientific calculator from MathDA: perform calculations with basic math to equation solver, integral, derivative, matrix, vector, statistics...
onlinecalculator.cc
Online Calculator - Easy to Use Free Online Calculator
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!
www.theonlinecalculator.com
Calculator | The Online Calculator
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.
calculatorlib.com
Basic Calculator - Online Calculator
Learn how to use your basic calculator with easy-to-follow instructions. Discover how to input numbers and symbols, perform simple math, and calculate percentages.