What’s the **difference between watts and volts**? In this quick read, we will explain it in simple terms even if you’re not an engineer.

So here is their differences:

## Main Differences In Simple Terms

**Voltage is the pressure of the electrical current going through the wire, and wattage describes the speed of the electrical current flow.**

**Watt = Voltage X Current**

Watts and volts are set by a system called SI (International System of Units).

A solid understanding of the difference between watts vs volts helps you do electrical repair, troubleshooting, and installation work with clarity to prevent avoidable mistakes.

### Pressure Of Electrical Current (Voltage)

In layman’s terms, voltage is pressure.

Think of it like water pressure through the pipe as the speed of the electrons passing a point within a circuit.

For a battery system, the voltage drops as the capacity drops.

### Volume Of Electrical Current (Amperage)

Current (Amperage) measures the volume of electrons in the electrical current.

1 A is the current that flows with electric charge of one Coulomb per second.

**1 A = 1C/s**

### Speed Of Electrical Current (Watt)

Think of watt as how fast a bulk of electrons move through the circuit as an energy consumption rate of 1 joule per second.

**1 W = 1 J / s**

and

**1W = 1V X 1A**

## Common FAQ

### How Many Watts Is In One Volt?

1 Watt is in a Volt. It represents the “potential difference between two points of a conducting wire carrying a constant current of 1 ampere.

### How Many Watt Hour Is In A 12V Battery?

If battery amp hour = 400 Ah, Watt Hour = 12 V X 400 Ah = 4800 Wh

Check out this chart to learn more about watt hrs in a 12V battery

### Can A Circuit Have A Different Voltages & Current?

A system can have different setups such as parallel and series connections to yield different voltage and current flow.

In parallel circuit:

**Same voltage****All components are connected end to end to form only one path for the current flow****Total current equals the sum of individual branch currents****Individual resistances diminish rather than add to make the total**

In series circuit:

**Voltage drops add to the equal total voltage****All components share the same current****Resistances**add to the**equal total resistance**

To learn more about picking between parallel VS series, please click here

### Which Unit Should I Pay Attention To ? Watt Or Voltage

**To answer what matters more watts or volts?**

They are both important to pay attention to when working on a circuit system.

Volts and watt are not independent of each other. Watts cannot exist without volts since they are the product between volts and amps.

In a hydraulic analogy, the volt is similar to pressure and watts are similar to rate.

**For example,** a system that requires 700W of power like a desktop computer, then you need a power supply system of 700W or more to feed all the components to run properly.

As far as voltage goes, picking a suitable cable that can handle the electrical pressure is important.

Please check out our wire size guide for more information.

Typical voltages supplied by power companies to consumers are 110 – 120V (Alternating Current)