# Amps to Watts Calculator

Electric current in amps (A) to electric power in watts (W) calculator.

W
kW
mW

Watts to amps calculator ►

* Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12

### DC amps to watts calculation

So The power P in watts (W) is equal to the current  I in amps (A), times the voltage  V in volts (V).

P(W) = I(A) × V(V)

#### Example 1

What is power consumption in watts when the current is 3A and the voltage supply is 120V?

Answer: the power P is equal to current of 3 amps times the voltage of 120 volts.

P = 3A × 120V = 360W

#### Example 2

What is power consumption in watts when the current is 3A and the voltage supply is 130V?

Answer: the power P is equal to current of 3 amps times the voltage of 130 volts.

P = 3A × 130V = 390W

## AC single phase amps to watts calculation

So The power P in watts (W) is equal to the power factor  PF times the phase current  I in amps (A), times the RMS voltage  V in volts (V).

P(W) = PF × I(A) × V(V)

#### Example 1

What is power consumption in watts when the power factor is 0.8 and the phase current is 3A and the RMS voltage supply is 120V?

Answer: the power P is equal to power factor of 0.8 times current of 3 amps times voltage of 120 volts.

P = 0.8 × 3A × 120V = 288W

#### Example 2

What is power consumption in watts when the power factor is 0.8 and the phase current is 3A and the RMS voltage supply is 130V?

Answer: the power P is equal to power factor of 0.8 times current of 3 amps times voltage of 130 volts.

P = 0.8 × 3A × 130V = 312W

## AC three phase amps to watts calculation

#### Calculation with line to line voltage

So The power P in watts (W) is equal to square root of  times the power factor  PF times the phase current  I in amps (A), times the line to line RMS voltage  VL-L in volts (V).

P(W) = 3 × PF × I(A) × VL-L(V)

##### Example 1

What is power consumption in watts when the power factor is 0.8 and the phase current is 3A and the RMS voltage supply is 120V?

Answer: the power P is equal to power factor of  0.8 times current of 3 amps times the voltage of 120 volts.

P = 3 × 0.8 × 3A × 120V = 498W

##### Example 2

What is power consumption in watts when the power factor is 0.8 and the phase current is 3A and the RMS voltage supply is 130V?

Answer: the power P is equal to power factor of  0.8 times current of 3 amps times the voltage of 130 volts.

P = 3 × 0.8 × 3A × 130V = 540W

#### Calculation with line to neutral voltage

So The power P in watts (W) is equal to  times the power factor  PF times the phase current  I in amps (A), times the line to neutral RMS voltage  VL-N in volts (V).

P(W) = 3 × PF × I(A) × VL-N(V)

## Typical power factor values

Do not use typical power factor values for accurate calculations.

Device Typical power factor
Fluorescent lamp 0.95
Incandescent lamp 1
Resistive oven 1
Synchronous motor 0.9

## Amps to watts table (120V)

Current (A) Voltage (V) Power (W)
0.1 amps 120 volts 12 watts
0.2 amps 120 volts 24 watts
0.3 amps 120 volts 36 watts
0.4 amps 120 volts 48 watts
0.5 amps 120 volts 60 watts
0.6 amps 120 volts 72 watts
0.7 amps 120 volts 84 watts
0.8 amps 120 volts 96 watts
0.9 amps 120 volts 108 watts
1 amps 120 volts 120 watts
2 amps 120 volts 240 watts
3 amps 120 volts 360 watts
4 amps 120 volts 480 watts
5 amps 120 volts 600 watts
6 amps 120 volts 720 watts
7 amps 120 volts 840 watts
8 amps 120 volts 960 watts
9 amps 120 volts 1080 watts
10 amps 120 volts 1200 watts

Amps to watts calculation ►

## Features of Amps to Watts conversion

Our Amps to Watts conversion allows the users to Calculate Amps to Watts. Some of the prominent features of this utility are explained below.

### No Registration

You don’t need to go through any registration process to use the Amps to Watts converter. Using this utility, you can convert Amps to Watts as many times as you want for free.

#### Fast conversion

This Amps to Watts Calculator offers users the fastest conversion. Once the user enters the  Amps to Watts values ​​in the input field and clicks the Convert button, the utility will start the conversion process and return the results immediately.

#### Saves Time and Effort

The manual procedure of Calculator Amps to Watts isn’t an easy task. You must spend a lot of time and effort to complete this task. The Amps to Watts Calculator allows you to complete the same task immediately. You will not be asked to follow manual procedures, as its automated algorithms will do the work for you.

##### Accuracy

Despite investing time and effort in manual Calculation, you might not be able to get your hands on accurate results. Not everyone is good at solving math problems, even if you think you're a pro, there's still a good chance you'll get in accurate results. This situation can be smartly handled with the help of a Amps to Watts Calculator. You will be provided with 100% accurate results by this online tool.

##### Compatibility

The online Amps to Watts converter perfectly works on all operating systems. Whether you have a Mac, iOS, Android, Windows, or Linux device, you can easily use this online Tool without facing any hassle.

###### 100% Free

You don't need to go through any registration process to use this Amps to Watts Calculator. You can use this utility for free and do unlimited Amps to Watts conversions without any limitations.