Skip to content
CM into Inches
Science & Engineering · Calculator

Voltage Drop Calculator

Calculate voltage drop across a resistor.

Voltage Drop Calculator

Find the voltage drop from current and resistance.

Formula

V = I × R

Step-by-step

  1. V = I × R

Example

2A × 10Ω = 20V drop.

FAQ

Why does voltage drop?+

Due to resistance in the conductor or component.

Related Tools

Ohm's Law Calculator

Science & EngineeringPopular

Calculate voltage, current, or resistance using Ohm's Law.

Electrical Power Calculator

Science & Engineering

Calculate electrical power from voltage and current.

Resistor Color Code Calculator

Science & Engineering

Decode resistor color bands.

Kinetic Energy Calculator

Science & Engineering

Calculate kinetic energy.

Potential Energy Calculator

Science & Engineering

Calculate gravitational potential energy.

Force Calculator

Science & Engineering

Calculate force from mass and acceleration.