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Watts to Amps Calculator

Free online Watts to Amps Calculator tool will convert the power in watts to electric current in amps. Give current type, power, voltage and power factor details and click on the calculate button to get the amperage for your watts.


Watts to Amps Calculator: Struggling to measure the current in a circuit and need the help of conversions. To help you out with this we have provided an instant tool that converts watts to amps easily. This calculator not only gives the exact output but also provides the detailed step by step process of conversion. Refer further sections to know how to convert watts into amps, their formulas and solved example questions. Make all your lengthy calculations easily by taking the help of this free and user-friendly tool.

Steps to Convert Watts to Amps

Here are the simple steps to calculate the number of amps in a watt. Follow these guiding principles and obtain the result for your numbers in a fraction of seconds.

  • Get the power and voltage.
  • Divide the power in watts by voltage in volts to get DC amps.
  • Get the power factor times the volts.
  • Divide the power by product to get amps in AC.

Watts to Amps Calculations

Amps and watts are measurements of quantities in the electric circuit. Watt is the measurement of power and amperage is the measurement of the current. The current in amps times the voltage is equal to the voltage.

The three main types of the ampere are DC current, AC single-phase current and AC three-phase current.

The formulas to calculate the amps is along the lines:

  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
    • I = P/(√3 x PF x V)

Where,

I is the current in amps

P is the power in watts

PF is the power factor

V is the voltage in volts

Example

Question: Convert 25 watts having 12 v and 2 power factor to single phase AC amps.

Solution:

Given that

Power P = 25 w

Voltage V = 12 v

Power factor PF = 2

Current I = P/(PF x V)

I = 25/(2 x 12)

I = 25/24 = 1.04

Therefore, single phase AC amps is 1.04 A.

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Frequently Asked Questions on Watts to Amps Calculator

1. How to convert watts to amps?

To the power in watts to current in amps divide the power by voltage. It means the ratio of watts to volts is ampere.


2. What is the formula to convert AC single phase watts to amps?

The single-phase AC current in amps is equal to the power in watts divided by power factor times the voltage in volts. The formula is I = Power /(Power_factor x Voltage)


3. How to use watts to amps calculator?

The simple steps to use this handy calculator is mentioned here. Firstly, write the power in watts, voltage power factor and select the current type. Press the calculate button to get the result i.e current in amperage.


4. How many watts is 30 amps?

Given that, current I = 30 amps

By using the watts to amps (120V) table.

Power P = I x V = 30 x 120 = 3600 Watts.

Therefore, 3600 watts is 30 amps.


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