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Convert Watts (w) to kilowattshours (KWh) Calculation
To convert Watts to KWh , Please provide the values below:
To calculate watts to kilowattshours , use the following formula:
The energy (E) in kilowatt-hours(KWh) is equal to the power (P) consumed in watts (w) times the time (T) in hours(Hrs), divided by 1000.
For Example 01
If an Induction motor takes 1250W power at 0.99 (lag) power factor from the AC source and runing time 5 hours. Calculate the KWh of the motor.
Answer
Where,
power P = 1250W , Pf = 0.99,T = 5 hours
We Know
E (KWh) = Pw x T / 1000
E (KWh) = 1250 x 5 /1000
E (KWh) = 6.25
KWh = 6.25
For Example 02
If an Induction cooker takes 3000W power and runing time 1.5 hours. Calculate the KWh of the Induction cooker .
Answer
Where,
power P = 3000W , T = 1.5 hours
We Know
E (KWh) = Pw x T / 1000
E (KWh) = 3000 x 1.5 /1000
E (KWh) = 4.5
KWh = 4.5
For Example 03
What is the kWh of 2,500 watts for 6.5 hours?
Answer
Where,
power P = 2500W , T = 6.5 hours
We Know
E (KWh) = Pw x T / 1000
E (KWh) = 2500 x 6.5 /1000
E (KWh) = 16.25
KWh = 16.25
See Also:
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| Power Factor Value conversion table | ||
|---|---|---|
| SL No | Device | Typical PF |
| 01 | Synchronous Motor | 0.9 |
| 02 | Induction Motor full load | 0.85 |
| 03 | Induction Motor no Load | 0.35 |
| 04 | Fluorescent Lamp | 0.95 |
| 05 | Resistive Oven | 1 |
| 06 | Resistive Load | 1 |
| 07 | Incandescent Lamp | 1 |
Do not use normal power factor values for exact calculations
| Watts to KWh with Time Table: | |||
|---|---|---|---|
| SL No | Real Power (W) |
Time (Hrs) |
Energy (KWh) |
| 01 | 500 | 3 | 1.5 |
| 02 | 600 | 3 | 1.8 |
| 03 | 700 | 3 | 2.1 |
| 04 | 800 | 3 | 2.4 |
| 05 | 900 | 3 | 2.7 |
| 06 | 1000 | 3 | 3 |
| 07 | 1100 | 3 | 3.3 |
| 08 | 1200 | 3 | 3.6 |
| 09 | 1300 | 3 | 3.9 |
| 10 | 1400 | 3 | 4.2 |
| 11 | 1500 | 4 | 6 |
| 12 | 1600 | 4 | 6.4 |
| 13 | 1700 | 4 | 6.8 |
| 14 | 1800 | 4 | 7.2 |
| 15 | 1900 | 5 | 9.5 |
| 16 | 2000 | 5 | 10 |
| 17 | 2100 | 5 | 10.5 |
| 18 | 2200 | 5 | 11 |
| 19 | 2300 | 5 | 11.5 |
| 20 | 2400 | 5 | 12 |
Frequently Asked Questions:
What do you convert Watts to KWh for ?
One kilowatt-hour is equal to 1,000 watts for one hour
What is AC Circuit 1000 W in KWh ?
1 kilowatt-hours (KWh)
What is AC Circuit 500 Watts (W),6 hrs in Kilowatts-hours (KWh)?
A watt changes depending on whether the electrical circuit is AC or DC. In a DC circuit, 500 VA is the equivalent of 3 KWh. This equivalence means that the power factor of that power supply is 0.95.
What is the formula for watts to kilo Watts-hours (KWh) ?
Energy (KWh) = Active Power(W) x Time (hrs) / 1000.
If 1500 watts is 2 hours , how much is KWh?
3 KWh
If 150 watts is 20 hours , how much is KWh?
3 KWh
If 1500 watts is 6 hours , how much is KWh?
9 KWh
If 3000 watts is 5 hours , how much is KWh?
15 KWh
If 2500 watts is 2 hours , how much is KWh?
5 KWh
If 5600 watts is 4 hours , how much is KWh?
22.4 KWh
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