+88 01714 700026 earthbondhonsms@gmail.com
Select Page

#### Quick watts (w) to amps (a) Conversion Calculator

power consumption of the electrical device or system, measured in watts (W). Know the Voltage: Establish the voltage at which the electrical system operates, measured in volts (V). Calculate the Amperage: Divide the wattage by the voltage using the formula A = W / V.

Watts To Amps Calculator

Note, For higher values like 5×103, 10×10-6, 1.6 x1012, enter the value like this for scientific notation as 5e3, 10e-6, 1.6e12, etc.

### DC Watts to Amps Calculation:

The Current (I) in amps (A) is equal to the Real power (P) in watts (W), divided by the voltage in volts (V):

For example, Let’s convert 40 watts to current using a DC circuit with 6 volts of Voltage.

I(A) = P(W) ÷ V(V)
I(A) = 40 ÷ 6
I(A) = 6.66 A

### AC Single Phase Watts to Amps Calculation:

The phase Current (I) in amps (A) is equal to the Real power (P) in watts (W), divided by the power factor PF times the RMS voltage in volts (V):

For example, let’s convert 1,200 watts to current for an AC electrical circuit with 230 volts of Voltage and a power factor of 0.8.

I(A) = P(A) ÷ V(V) x pf
I(A) = 1200 ÷ 230 x 0.8
I(A) = 6.522A

### Calculation with Line to Line Voltage:

The 3-phase Current (I) in amps (A) is equal to the Real power (P) in watts (W), divided by the square root of 3 times the power factor (pf) times the line-to-line RMS voltage VL-L in volts (V):

For example, let’s convert 1300 watts to current for an AC Electrical circuit with 440 volts of Voltage and a power factor of 0.8.

I(A) = P(A) ÷ √3 x V(V) x pf
I(A) = 1300 ÷ √3 x 440 x 0.8
I(A) = 2.132 A

### Calculation with Line to Neutral Voltage:

The 3-phase Current (I) in amps (A) is equal to the Real power (P) in watts (W), divided by 3 times the power factor PF times the line to neutral RMS voltage VL-N in volts (V):

For example, let’s convert 1,100 watts to current for an AC electrical circuit with 440 volts of Voltage and a power factor of 0.8.

I(A) = P(A) ÷ 3 x V(V) x pf
I(A) = 1100 ÷ 3 x 440 x 0.8
I(A) = 1.042 A

Where:

• P = Power in watts
• V = Voltage in volts
• I = Current in amperes
• Cosθ = Power factor in AC circuits
• VL-L = Line to Line Voltage in 3-Phase Circuits
• VL-N = Line to Neutral Voltage in 3-Phase Circuits
Recommended Electrical Resources:

### How to use This Calculator?

To use the above “Watts to Amps Conversion Calculator” follow the below steps:

01. Select Phase Type: Choose between “DC Line” “Single Phase” or “3 Phase” by choosing the appropriate option from the dropdown.

02. Enter Real Power: Input the Real Power in watts or motor watts value in the specific input box. You can enter the value in watts or kilowatts by choosing the appropriate option from the dropdown.

03. Enter Supply Voltage: Input the supply voltage or motor voltage value in the specified input box. You can enter the value in Volts or Kilovolts by choosing the appropriate option from the dropdown.

04. Select Voltage Type: Choose between “Line to Line Voltage” or “Line to Neutral Voltage” by choosing the appropriate option from the dropdown.

05. Enter Power Factor: Input the power factor of the motor in the provided input box. The power factor is a unitless value typically between 0 and 1.

06. Reset: If you want to “reset” the calculator to perform another conversion, you can click the “Reset” button, and all input fields will be cleared.

07. Calculate: Click the “Calculate” button to obtain the results. The calculated results will be displayed in the “Results:” section.

08. Swap: If you want to “Swap” the calculated to Exchange conversion, you can click the “Swap” button, and Calculate will be Exchange.

09. Result: The calculated “result” will be displayed in the respective “Result In Amps (A) or Amps (mA)” output field.

### Amps to Volts Conversion table:

Watts (W) to Amps (A) Table (220V)
Power (W) Voltage (V) Current (A)
10 watts 220 volts 0.045 amps
20 watts 220 volts 0.090 amps
30 watts 220 volts 0.136 amps
40 watts 220 volts 0.181 amps
50 watts 220 volts 0.227 amps
60 watts 220 volts 0.272 amps
70 watts 220 volts 0.318 amps
80 watts 220 volts 0.363 amps
90 watts 220 volts 0.409 amps
100 watts 220 volts 0.454 amps
200 watts 220 volts 0.909 amps
300 watts 220 volts 1.363 amps
400 watts 220 volts 1.818 amps
500 watts 220 volts 2.272 amps
600 watts 220 volts 2.727 amps
700 watts 220 volts 3.181 amps
800 watts 220 volts 3.636 amps
900 watts 220 volts 4.090 amps
1000 watts 220 volts 4.545 amps
Typical Power factor Values:
Device Typical PF
Fluorescent Lamp 0.95
Incandescent Lamp 1
Resistive Oven 1
Synchronous Motor 0.9
Power Factor Value conversion table

What is 1 amp?

1 ampere is the current in which one coulomb of charge travels across a given point in 1 second. That's why an average lightning bolt carries around 5 coulombs of charge, even though its current may be tens of thousands of amps.

Amperes (A) = Watts (W) / Volts (V)

Therefore, 1000 watts equate to approximately 4.54 amperes at a voltage of 220 volts.

What is 2 watt current?

2 watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of 2 volt (V), meaning the watt is equivalent to the volt-ampere.

What is a kW?

A kW or kilowatt is a unit of measurement for the rate of power an electrical device or load uses. The higher the kW of a device, the more electrical power is needed to operate it. A kilowatt is 2000 watts (W). 2000 W = 2 kW.

Is kW and kVA the same?

KVA is used to represent apparent power and Kilowatts (kW) is used to represent the Real power of an electrical system. Its usage differs in electrical circuits because of the difference between AC and DC circuits. When considering a DC circuit, the kW and kVA are equal because the current Flow does not get out of the phase line.

### Related Articles

#### Power factor Conversion Calculator

Power System Your content goes here. Edit or remove this text inline or in the module Content settings. You can also...