# Volts, Amps and Watts explained

Volts, Amps and Watts are the three most important measurements when working with electricity. Here is a quick refresher on what they each represent.

## Overview

**Volts** = Strength

**Amps** = Flow of electric current

**Watts** = Electrical power; the combination of volts and amps

### Voltage

### Amps

### Watts

Wattage is a measure for the power of an electrical system, it is simply the combination of Volts and Amps. To calculate wattage multiply the voltage by the amps.

Watts = Volts x Amps

The flowing water analogy is commonly used to explain Volts and Amps but I find it confusing since water pressure will have an effect on the water flow volume so how can pressure and flow be individual metrics?

Instead I prefer the warriors analogy:

## Warrior analogy

I'm going to use soldiers for this analogy. A high voltage will mean a strong soldier where as a low voltage will mean a weaker soldier.

A soldier with **high voltage** with be a better fighting force

The effect of one soldier here is high.

Whereas a soldier with a **low voltage** will not be as effective.

## Everyday examples

Lets put some real life examples to these numbers.

Device | Voltage | Amps |
---|---|---|

USB | 5v | 0.6A-3A |

North American power socket | 120v | 12A max |

European & Commonwealth power socket | 230-240v | 13A |