Watts to Amps Calculator

The Watts to Amps Calculator is a free online tool that converts watts of power to amps of electric current. To determine the amperage for your watts, enter the current type, power, voltage, and power factor, then press the calculate button.

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Watts to Amps Calculator: Struggling to sort out how to measure current in a circuit and need some help? We've created a quick tool that converts watts to amps for you. This calculator not only calculates the precise result but also walks you through the converting process step by step. To learn how to convert watts to amps, as well as formulae and examples, go to the following sections. Using this free and user-friendly application, you can effortlessly do all of your tedious calculations.

Watts and Amps- Definition

The electric circuit's quantities are measured in amps and watts. Watt is a unit of power measurement, whereas amperage is a unit of the current measurement. The voltage equals the current in amps times the voltage.

DC, AC single-phase current, and AC three-phase current are the three basic varieties of ampere. The formulas for calculating amps are as follows

1. DC watts to amps I = P/V

2. AC single phase watts to amps I = P/(PF x V)

3. AC three-phase watts to amps = P/(√3 x PF x V)

  • Where, I = current in amps
  • P = power in watts
  • PF = power factor
  • V = voltage in volts

How to Convert Watts to Amps?

The number of amps in a watt can be calculated in a few simple steps. Follow these guidelines to get your numbers' results in a matter of seconds.

  • Step 1: Make a note of the voltage and power.
  • Step 2: To get DC amps, divide the wattage by the voltage in volts.
  • Step 3: Take the power factor and multiply it by the volts to get the power factor.
  • Step 4: To obtain amps in AC, divide the power by the product.

How to Use the Watts to Amps Calculator?

The following is the procedure how to use the watts to amps calculator

  • Step 1: Input the unknown value's current type, power, voltage and power factor and x in the appropriate input fields.
  • Step 2: To acquire the result, click the "Calculate the Unknown" button.
  • Step 3: Finally, the output field will show the amperage for your watts.

For more concepts check out physicscalculatorpro.com to get quick answers by using this free tool.

Watts to Amps Conversion Examples

Question 1: Convert 80 watts to single-phase AC amps with a 15 volt supply and a 4 power factor.


Given: Power P = 80 w

Voltage V = 15 v

Power factor PF = 4

Current I = P/(PF x V)

I = 80/(4 x 15)

I = 80/60 = 1.33

Hence, single-phase AC amps are 1.33 A.

FAQs on Watts to Amps Calculator

1. How do I calculate amps?

Take the watts and divide them by the volts to compute amps.

2. How can you figure out how many amps are in a circuit?

According to Ohm's rule, voltage equals amperage times resistance, so you can get the amps by dividing the voltage of your power source by the resistance of the load.

3. How to convert watts to amps?

Divide the voltage by the power in watts to get the current in amps. It denotes that the watt-to-volt ratio is ampere.

4. A microwave consumes how many amps?

Microwave ovens uses between 650 to 1200 watts of power, which translates to about 10 amps of current.

5. What is the wattage of a microwave?

Microwaves typically range from 600 to 1,200 watts. Microwaves with a higher wattage tend to be larger and more expensive, thus this is a price and size concern that can have a significant impact on microwave cooking performance.

6. How do I utilize a watts-to-amps converter?

Write the power in watts, the voltage power factor, and the current type first. To acquire the result, which is currently in amperage, press the calculate button.