Kilowatt-hours (kWh) to Kilowatts (kW) Calculator
Calculation Formula
Where:
- P(kW) is the power in kilowatts
- E(kWh) is the energy in kilowatt-hours
- t(h) is the time in hours
How to Convert kWh to kW
To convert from kilowatt-hours (kWh) to kilowatts (kW), you need to know the time period over which the energy was consumed.
The power P in kilowatts (kW) is equal to 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 kilowatts when the energy consumption is 15 kWh for time duration of 3 hours?
P = 15kWh / 3h = 5kW
Long duration example
What is the power in kilowatts when the energy consumption is 36 kWh for time duration of 24 hours?
P = 36kWh / 24h = 1.5kW
Fractional time example
What is the power in kilowatts when the energy consumption is 1 kWh for time duration of 0.5 hours?
P = 1kWh / 0.5h = 2kW
kWh to kW Conversion Table
| Energy (kWh) | Time (hours) | Power (kW) |
|---|---|---|
| 1 kWh | 1 h | 1 kW |
| 2 kWh | 1 h | 2 kW |
| 1 kWh | 2 h | 0.5 kW |
| 15 kWh | 3 h | 5 kW |
| 5 kWh | 0.5 h | 10 kW |
| 5 kWh | 10 h | 0.5 kW |
Understanding kWh and kW
Kilowatt-hours (kWh) measure energy - the total amount of power consumed over time. Kilowatts (kW) measure power - the rate at which energy is used.
This calculator is particularly useful for:
- Determining average power consumption from energy bills
- Sizing electrical equipment based on energy usage
- Analyzing power requirements for solar systems
- Converting between energy and power measurements
