eCalculus

Free online calculators with step-by-step solutions

Calculators

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Percent Calculator

Calculate percentages, add or subtract percent from a number
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Unit Converter

Convert between different units of measurement

Features

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Step-by-Step Solutions

Every calculation includes detailed step-by-step explanation

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Multilingual

Available in English, Russian, Spanish and German

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Fast & Free

No registration required, instant results

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Shareable URLs

Each calculation has a unique URL you can bookmark or share