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Every calculation includes step-by-step solutions. Understand the why, not just the what.
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9 Free Calculators
Everything you need to ace your electrical engineering courses. No credit card. No signup.
Ohm's Law Calculator
Master V=IR with 6 calculation modes. Step-by-step solutions for every problem.
Perfect for EE 101 courses
Series/Parallel Resistors
Simplify complex circuits. Learn equivalent resistance with unlimited resistors.
Circuit analysis homework
Voltage/Current Divider
Understand voltage division in networks. Practical for sensor circuits.
Lab projects
LED Resistor Calculator
Design LED circuits safely. Learn current limiting with E24 standard resistors.
Electronics projects
Battery Life Calculator
Estimate runtime for portable devices. Essential for IoT projects.
Senior design projects
Wire Gauge Converter
Convert AWG to mm² instantly. Includes complete reference table.
Quick reference tool
Transformer Sizing
Learn transformer fundamentals. Calculate turns ratio and efficiency.
Power electronics course
Three-Phase Power (Basic)
Introduction to 3-phase systems. Understand power triangle concepts.
Industrial systems course
Energy Cost Calculator
Calculate electricity bills. Learn about energy consumption and savings.
Sustainability projects
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