1. What is kWh Calculation from kW?

Definition: This calculator determines energy consumption in kilowatt-hours (kWh) based on power in kilowatts (kW) and time in hours.

Purpose: It helps estimate electricity usage for appliances, systems, or entire facilities over time.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E_{kWh} \) — Energy in kilowatt-hours
• \( P_{kW} \) — Power in kilowatts
• \( t \) — Time in hours

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

3. Importance of kWh Calculation

Details: Understanding kWh helps with energy budgeting, cost estimation, and efficiency analysis for electrical systems.

4. Using the Calculator

Tips: Enter the power consumption in kW and the operating 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 watts to kW?
A: Divide watts by 1000 (1 kW = 1000W). Enter the kW value in the calculator.

Q3: Can I use minutes instead of hours?
A: Convert minutes to hours by dividing by 60 (30 min = 0.5 hours) before entering.

Q4: How accurate is this calculation?
A: It's precise for constant power draw. For variable loads, use average power over time.

Q5: How do I estimate electricity costs from kWh?
A: Multiply kWh by your electricity rate (e.g., $0.12/kWh).