Kilowatt-hours (kWh) to Watts (W) Calculator
Power in watts:
Calculation Formula
P(W) = 1000 × E(kWh) / t(h)
Where:
- P(W) is the power in watts
- E(kWh) is the energy in kilowatt-hours
- t(h) is the time in hours
How to Convert kWh to Watts
To convert from kilowatt-hours (kWh) to watts (W), you need to know the time period over which the energy was consumed.
The power P in watts (W) is equal to 1000 times the energy E in kilowatt-hours (kWh), divided by the time period t in hours (h):
Example Calculations
Basic example
What is the power in watts when the energy consumption is 3 kWh for time duration of 3 hours?
P = 1000 × 3kWh / 3h = 1000W
Long duration example
What is the power in watts when the energy consumption is 12 kWh for time duration of 24 hours?
P = 1000 × 12kWh / 24h = 500W
Fractional time example
What is the power in watts when the energy consumption is 0.5 kWh for time duration of 0.25 hours?
P = 1000 × 0.5kWh / 0.25h = 2000W
kWh to Watts Conversion Table
| Energy (kWh) | Time (hours) | Power (W) |
|---|---|---|
| 1 kWh | 1 h | 1000 W |
| 2 kWh | 1 h | 2000 W |
| 1 kWh | 2 h | 500 W |
| 3 kWh | 3 h | 1000 W |
| 5 kWh | 0.5 h | 10000 W |
| 5 kWh | 10 h | 500 W |