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Free Online Calculator for Everyday and Scientific Calculations
CalculatorsForMe gives you a free online calculator for quick arithmetic and more advanced calculations. Use the scientific calculator to work with fractions, percentages, powers, square roots and logarithms. Enter an expression with your keyboard or use the keypad to calculate directly in your browser, with no sign-up required.
Need to calculate percentages online, find a square root or solve an expression with parentheses? This advanced calculator supports the order of operations, factorials and trigonometric functions. Switch between degrees and radians to calculate sine, cosine and tangent, and use the percentage calculator function to work out discounts or percentage changes.
Browse calculator categories covering finance, health and fitness, math, construction and everyday conversions. Dedicated tools are being added to the directory. For practical examples, explore our guides on how to calculate compound interest, measure square footage and convert units.