1. What is a kW to kWh Calculator?

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

Purpose: It helps determine energy consumption for electrical devices, systems, or entire facilities over a period of time.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy (kWh)
• \( P \) — Power (kW)
• \( t \) — Time (hours)

Explanation: Energy is simply power multiplied by time. 1 kWh equals 1 kW of power used for 1 hour.

3. Importance of Energy Calculation

Details: Accurate energy calculations help in electricity cost estimation, system sizing, and energy efficiency planning.

4. Using the Calculator

Tips: Enter the power in kW and time in hours. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), while kWh measures energy (total consumption over time).

Q2: How do I convert kWh to cost?
A: Multiply kWh by your electricity rate (e.g., 10 kWh × $0.12/kWh = $1.20).

Q3: Can I use minutes instead of hours?
A: Yes, but convert minutes to hours (divide by 60) before entering the value.

Q4: What if my device cycles on and off?
A: Use average power or calculate separately for on/off periods.

Q5: How accurate is this calculation?
A: It's precise for constant power draw. For variable loads, use more complex methods.