How to Figure Amps if You Know the Volts and Watts
Watts to Amps Electrical Conversion Calculator
Enter the ability and voltage to convert watts to amps for DC, single-stage Air conditioning, and 3-phase Air conditioning circuits.
Endeavor our amps to watts calculator.
How to Convert Watts to Amps
Converting watts to amps tin be done using the power formula, which states that I = P ÷ Eastward, where P is power measured in watts, I is current measured in amps, and E is voltage measured in volts.
Given this, to find amps given power and voltage use the following formula:
I(A) = P(West) V(Five)
Thus, the electric current I in amps is equal to the power P in watts divided by the voltage 5 in volts.
For case, discover the amperage of 1200 watts at 120 volts
electric current = power ÷ voltage
current = 1200W ÷ 120V
current = 10A
How Many Watts Are in an Amp
Using the formula above you can figure out how many watts there are per amp. At 120 volts, 120 watts are equal to 1 amp, merely this will change depending on the voltage of the circuit.
For case, at 240 volts, 240 watts are equal to 1 amp.
Unmarried-Phase Air-conditioning Circuit Watts to Amps Conversion
Converting watts to amps for a single-phase AC circuit with ability factor uses a slightly unlike formula.
I(A) = P(West) V(Five) × PF
In other words, the current I in amps is equal to the power P in watts divided by the voltage V in volts multiplied by the power factor PF. If y'all're unsure what the power cistron is so a power factor computer can help.
Three-Stage Air conditioning Circuit Watts to Amps Conversion
Using Line to Line Voltage
For iii-phase AC circuits where the line to line voltage is known, the formula to convert watts to amps is:
I(A) = P(West) VL-L(V) × PF × √3
The electric current I in amps is equal to the power P in watts divided by the line to line voltage V in volts multiplied past the power factor PF multiplied by the foursquare root of 3.
Using Line to Neutral Voltage
For 3-phase AC circuits where the line to neutral voltage is known, the formula to catechumen watts to amps is:
I(A) = P(West) FiveL-N(5) × PF × three
The electric current I in amps is equal to the power P in watts divided by the voltage 5 in volts multiplied by the power gene PF multiplied past three.
How to Catechumen Watts and Ohms to Amps
It is also possible to convert watts to amps if the resistance of the excursion is known using the formula:
I(A) = √(P(Westward) × R(Ω))
The current I in amps is equal to the square root of the power P in watts multiplied past the resistance R in ohms.
It is not possible to convert watts directly to amps without also knowing voltage or resistance.
Because one kilowatt is equal to one,000 watts, information technology is possible to apply the formulas above to besides convert kW to amps, but watts demand to exist converted to kW get-go. Use our kW to amps computer to solve for kilowatts.
Equivalent Watts and Amps at 120V AC
| Power | Current | Voltage |
|---|---|---|
| l Watts | 0.4167 Amps | 120 Volts |
| 100 Watts | 0.8333 Amps | 120 Volts |
| 150 Watts | one.25 Amps | 120 Volts |
| 200 Watts | one.667 Amps | 120 Volts |
| 250 Watts | two.083 Amps | 120 Volts |
| 300 Watts | 2.5 Amps | 120 Volts |
| 350 Watts | 2.917 Amps | 120 Volts |
| 400 Watts | iii.333 Amps | 120 Volts |
| 450 Watts | three.75 Amps | 120 Volts |
| 500 Watts | iv.167 Amps | 120 Volts |
| 600 Watts | 5 Amps | 120 Volts |
| 700 Watts | 5.833 Amps | 120 Volts |
| 800 Watts | 6.667 Amps | 120 Volts |
| 900 Watts | 7.5 Amps | 120 Volts |
| yard Watts | eight.333 Amps | 120 Volts |
| 1100 Watts | 9.167 Amps | 120 Volts |
| 1200 Watts | 10 Amps | 120 Volts |
| 1300 Watts | 10.833 Amps | 120 Volts |
| 1400 Watts | 11.667 Amps | 120 Volts |
| 1500 Watts | 12.5 Amps | 120 Volts |
| 1600 Watts | thirteen.333 Amps | 120 Volts |
| 1700 Watts | 14.167 Amps | 120 Volts |
| 1800 Watts | 15 Amps | 120 Volts |
| 1900 Watts | xv.833 Amps | 120 Volts |
| 2000 Watts | 16.667 Amps | 120 Volts |
| 2100 Watts | 17.5 Amps | 120 Volts |
| 2200 Watts | 18.333 Amps | 120 Volts |
| 2300 Watts | 19.167 Amps | 120 Volts |
| 2400 Watts | 20 Amps | 120 Volts |
| 2500 Watts | xx.833 Amps | 120 Volts |
Equivalent Watts and Amps at 12V DC
| Power | Current | Voltage |
|---|---|---|
| 5 Watts | 0.4167 Amps | 12 Volts |
| 10 Watts | 0.8333 Amps | 12 Volts |
| xv Watts | 1.25 Amps | 12 Volts |
| 20 Watts | i.667 Amps | 12 Volts |
| 25 Watts | 2.083 Amps | 12 Volts |
| 30 Watts | ii.five Amps | 12 Volts |
| 35 Watts | 2.917 Amps | 12 Volts |
| forty Watts | 3.333 Amps | 12 Volts |
| 45 Watts | 3.75 Amps | 12 Volts |
| 50 Watts | 4.167 Amps | 12 Volts |
| lx Watts | 5 Amps | 12 Volts |
| 70 Watts | 5.833 Amps | 12 Volts |
| lxxx Watts | 6.667 Amps | 12 Volts |
| 90 Watts | 7.5 Amps | 12 Volts |
| 100 Watts | eight.333 Amps | 12 Volts |
| 110 Watts | nine.167 Amps | 12 Volts |
| 120 Watts | 10 Amps | 12 Volts |
| 130 Watts | ten.833 Amps | 12 Volts |
| 140 Watts | 11.667 Amps | 12 Volts |
| 150 Watts | 12.5 Amps | 12 Volts |
| 160 Watts | 13.333 Amps | 12 Volts |
| 170 Watts | 14.167 Amps | 12 Volts |
| 180 Watts | 15 Amps | 12 Volts |
| 190 Watts | fifteen.833 Amps | 12 Volts |
| 200 Watts | sixteen.667 Amps | 12 Volts |
| 210 Watts | 17.5 Amps | 12 Volts |
| 220 Watts | 18.333 Amps | 12 Volts |
| 230 Watts | nineteen.167 Amps | 12 Volts |
| 240 Watts | 20 Amps | 12 Volts |
| 250 Watts | twenty.833 Amps | 12 Volts |
Source: https://www.inchcalculator.com/watts-to-amps-calculator/
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