Watt is the unit of power (symbol: W).
The watt unit is named after James Watt, the inventor of the steam engine.
One watt is defined as the energy consumption rate of one joule per second.
1W = 1J / 1s
One watt is also defined as the current flow of one ampere with voltage of one volt.
1W = 1V × 1A
Convert watt to milliwatt, kilowatt, megawatt, gigawatt, dBm, dBW.
Enter the power in one of the text boxes and press the Convert button:
| name | symbol | conversion | example |
|---|---|---|---|
| picowatt | pW | 1pW = 10-12 W | P = 10 pW |
| nanowatt | nW | 1nW = 10-9 W | P = 10 nW |
| microwatt | μW | 1μW = 10-6 W | P = 10 μW |
| milliwatt | mW | 1mW = 10-3 W | P = 10 mW |
| watt | W | - | P = 10 W |
| kilowatt | kW | 1kW = 103 W | P = 2 kW |
| megawatt | MW | 1MW = 106 W | P = 5 MW |
| gigawatt | GW | 1GW = 109 W | P = 5 GW |
The power P in kilowatts (kW) is equal to the power P in watts (W) divided by 1000:
P(kW) = P(W) / 1000
Convert 1100W to kilowatts:
P(kW) = 1100W / 1000 = 1.1kW
Convert 1900W to kilowatts:
P(kW) = 1900W / 1000 = 1.9kW
The power P in milliwatts (mW) is equal to the power P in watts (W) times 1000:
P(mW) = P(W) ⋅ 1000
Convert 2W to milliwatts:
P(mW) = 1000 ⋅ 2W = 2000mW
Convert 9W to milliwatts:
P(mW) = 1000 ⋅ 9W = 9000mW
The power P in decibel-milliwatts (dBm) is equal to 10 times base 10 logarithm of the power P in milliwatts (mW) divided by 1 milliwatt:
P(dBm) = 10 ⋅ log10( P(mW) / 1mW)
Convert 25 watts to dBm:
P(dBm) = 10 ⋅ log10(1000⋅20W) = 43.979400087dBm
Convert 55 watts to dBm:
P(dBm) = 10 ⋅ log10(1000⋅55W) = 47.403626895dBm
The current I in ampers (A) is equal to the power P in watts (W) divided by the voltage V in volts (V):
I(A) = P(W) / V(V)
P = 200W, V = 50V
I = 200W / 50V = 4A
P = 300W, V = 50V
I = 300W / 50V = 6A
The voltage V in volts (V) is equal to the power P in watts (W) divided by the current I in ampers (A):
V(V) = P(W) / I(A)
What is the voltage in volts when the power consumption is 90 watts and the current flow is 3 amps?
V = 90W / 3A = 30V
What is the voltage in volts when the power consumption is 135 watts and the current flow is 3 amps?
V = 135W / 3A = 45V
R(Ω) = P(W) / I(A)2
R(Ω) = V(V)2/ P(W)
P(BTU/hr) = 3.412142 ⋅ P(W)
Convert 7000W to BTUs per hour:
P(BTU/hr) = 3.412141633 ⋅ 7000W = 23884.991431 BTU/hr
Convert 15000W to BTUs per hour:
P(BTU/hr) = 3.412141633 ⋅ 15000W = 51182.124495 BTU/hr
E(J) = P(W) ⋅ t(s)
What is the energy consumption of an electrical circuit that has power consumption of 50 watts for time duration of 3 seconds?
E(J) = 50W × 3s = 150J
What is the energy consumption of an electrical circuit that has power consumption of 80 watts for time duration of 3 seconds?
E(J) = 80W × 3s = 240J
P(HP) = P(W) / 746
Convert 16W to electrical horsepower:
P(hp) = 16W / 746 = 0.02144772118 hp
Convert 26W to electrical horsepower:
P(hp) = 26W / 746 = 0.034852546917 hp
The real power P in watts (W) is equal to 1000 times the apparent power S in kilo-volt-amperes (kVA) times the power factor (PF) or cosine of the phase angle φ:
P(W) = 1000 ⋅ S(kVA) ⋅ PF = 1000 ⋅ S(kVA) ⋅ cos φ
The real power P in watts (W) is equal to the apparent power S in volt-amperes (VA) times the power factor (PF) or cosine of the phase angle φ:
P(W) = S(VA) ⋅ PF = S(VA) ⋅ cos φ
How many watts does a house use? How many watts does a TV use? How many watts does a refrigerator use?
| Electric component | Typical power consumption in watts |
|---|---|
| LCD TV | 30..300 W |
| LCD monitor | 30..45 W |
| PC desktop computer | 300..400 W |
| Laptop computer | 40..60 W |
| Refrigerator | 150..300 W (when active) |
| Light bulb | 25..100 W |
| Fluorescent light | 15..60 W |
| Halogen light | 30..80 W |
| Speaker | 10..300 W |
| Microwave | 100..1000 W |
| Air conditioner | 1..2 kW |
Our Watt Calculator allows the users to Calculate Watt. Some of the prominent features of this utility are explained below.
You don’t need to go through any registration process to use the Watt Calculator. Using this utility, users to Calculate Watt as many times as you want for free.
This Watt Calculator offers users the fastest Calculate. Once the user enters the Watt values in the input field and clicks the Calculate button, the utility will start the conversion process and return the results immediately.
The manual procedure of Calculator Watt isn’t an easy task. You must spend a lot of time and effort to complete this task. The Watt 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.
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 Watt Calculator. You will be provided with 100% accurate results by this online tool.
The online Watt 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.
You don't need to go through any registration process to use this Watt Calculator. You can use this utility for free and do unlimited Watt Calculate without any limitations.
Advertising