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Easy Electrical Calculators for Engineers, Students & Professionals

Calculate electrical values, check cable sizes, convert units and more β€” all in one place.
Fast, accurate and easy to use.

100% Free Accurate Results Mobile Friendly No Registration
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Popular Electrical Calculators

Quick and simple tools for all your electrical calculation needs.

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Voltage Calculator

Calculate voltage from current, resistance or power.

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A

Current Calculator

Find current using voltage, resistance or power.

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W

Power Calculator

Calculate power (kW, HP) from voltage and current.

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Ξ©

Ohm's Law Calculator

Use Ohm's Law to find voltage, current, resistance or power.

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Cable Size Calculator

Find the right cable size for your load and distance.

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kW β†’ Amp Calculator

Convert kilowatts to amps and vice versa.

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A→kW

Amp β†’ kW Calculator

Convert amps to kilowatts and vice versa.

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Unit Converter

Convert electrical units (Voltage, Current, Power, etc.).

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Apps & Software

Discover useful apps and software for education, productivity, technology and everyday tasks.

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Educational Apps

Discover useful learning apps for students.

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Productivity Apps

Explore apps that help you work smarter.

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Explore All Apps β†’
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Trusted & Reliable Accurate calculations you can count on.
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Built for Everyone Engineers, students & DIY enthusiasts.
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Works on Any Device Desktop, tablet or mobile.
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Helpful Guides Learn with easy-to-understand guides.

Simple Tools. Better Electrical Decisions.

ElectroCalc brings useful electrical calculators and practical guides together in one easy-to-use website.

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