1. What is a kWh Calculator?

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

Purpose: It helps homeowners, businesses, and energy professionals calculate electricity usage for appliances, systems, or entire buildings.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• kWh — Kilowatt-hours (energy consumption)
• kW — Kilowatts (power rating)
• h — Hours (time in operation)

Explanation: Energy consumption is simply the product of power and time. 1 kWh equals using 1 kW of power for 1 hour.

3. Importance of kWh Calculation

Details: Understanding kWh helps estimate electricity costs, compare appliance efficiency, and manage energy consumption.

4. Using the Calculator

Tips: Enter the power in kilowatts (kW) and time in hours (h). For watts, divide by 1000 to convert to kW. All values must be > 0.

5. Frequently Asked Questions (FAQ)

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

Q2: What if I know minutes instead of hours?
A: Convert minutes to hours by dividing by 60 (30 minutes = 0.5 hours).

Q3: How does this relate to my electricity bill?
A: Electricity is typically billed per kWh. Multiply kWh by your rate to estimate costs.

Q4: What's the difference between kW and kWh?
A: kW measures power (rate of energy use), kWh measures energy (power × time).

Q5: Can I calculate monthly consumption?
A: Yes, calculate daily kWh then multiply by 30, or enter total hours in a month.