Power Unit Calculation from kW

Energy Formula:

\[ E_{kWh} = P_{kW} \times t \]

Energy (E): kWh

Definition: This calculator converts power in kilowatts (kW) to energy in kilowatt-hours (kWh) based on operation time.

Purpose: It helps determine energy consumption for electrical devices and systems, useful for energy management and cost estimation.

The calculator uses the formula:

\[ E_{kWh} = P_{kW} \times t \]

Where:

Explanation: Energy consumption is calculated by multiplying power by the duration of use.

Details: Accurate energy calculation helps in electricity cost estimation, system sizing, and energy efficiency analysis.

Tips: Enter the power rating of your device in kW and the operating time in hours. All values must be > 0.

Q1: How do I convert watts to kW?
A: Divide watts by 1000 (1 kW = 1000 W). For example, 1500W = 1.5 kW.

Q2: Can I use minutes instead of hours?
A: Yes, but convert minutes to hours first (divide by 60). The calculator expects hours.

Q3: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), kWh measures energy (power × time).

Q4: How accurate is this calculation?
A: It's precise for constant power devices. For variable loads, it gives average consumption.

Q5: Can I calculate cost from this result?
A: Yes, multiply kWh by your electricity rate (e.g., $0.12/kWh).