1. What is an Electricity Calculator UK kWh?

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

Purpose: It helps UK residents and businesses calculate electricity usage for better energy management and cost estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kWh)
• \( P \) — Power consumption (kW)
• \( t \) — Usage time (hours)

Explanation: The power consumption is multiplied by the usage time to get total energy consumed.

3. Importance of Electricity Calculation

Details: Accurate kWh calculation helps in budgeting electricity costs, comparing appliance efficiency, and reducing energy waste.

4. Using the Calculator

Tips: Enter the power consumption in kW and usage time in hours. All values must be > 0.

5. Frequently Asked Questions (FAQ)

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

Q2: How can I estimate my electricity cost?
A: Multiply kWh result by your electricity rate (typically £0.14-£0.30 per kWh in the UK).

Q3: What's a typical kW rating for household appliances?
A: Kettle (3kW), Microwave (1kW), Fridge (0.1-0.4kW), LED TV (0.05-0.2kW).

Q4: How do I calculate monthly consumption?
A: Multiply daily usage by 30, or use average hours per month (e.g., 4h/day × 30 = 120h).

Q5: Does this account for standby power?
A: No, you need to add standby consumption separately for complete accuracy.