Electrical Engineering

From Ohm's law to voltage drop and LED resistor selection, these tools cover the fundamentals of electrical engineering.

6 calculators in this toolkit

Solve for current and power using Ohm's Law from voltage and resistance values.

Calculate the required current-limiting resistor value and power dissipation for an LED circuit.

Estimate voltage drop and percentage loss over a wire run based on current, distance, wire resistance, and system voltage.

Estimate battery runtime in hours and days from capacity, load current, and usable efficiency.

Calculate the resistance value in Ohms from the color band digits and multiplier power.

Estimate total data transfer in GB based on bitrate, daily usage hours, and number of days.