1. What is the Electricity Cost Calculator?

This calculator helps you estimate the cost of running electrical appliances based on their power consumption, usage time, and current electricity rates in the UK for 2023-24.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( W \) — Power consumption in watts
• \( h \) — Usage time in hours
• \( Cost/kWh \) — Electricity rate in pounds per kilowatt-hour

Explanation: The formula converts watt-hours to kilowatt-hours (by dividing by 1000) then multiplies by the cost per kWh to get the total cost.

3. Understanding Electricity Costs

Details: As of October 2023, the average electricity rate in the UK is about 34p per kWh under the energy price cap. Actual rates may vary by supplier and tariff.

4. Using the Calculator

Tips:

• Find appliance wattage on its label or specifications
• For devices with variable consumption, use average or maximum wattage
• The default rate of £0.34/kWh reflects the October 2023 price cap
• For accurate results, use your actual tariff rate if known

5. Frequently Asked Questions (FAQ)

Q1: How do I find my appliance's wattage?
A: Check the manufacturer's label, specifications, or manual. Some appliances list amps and volts instead - multiply them to get watts.

Q2: What's the difference between watts and kilowatts?
A: 1 kilowatt = 1000 watts. Electricity is typically billed per kilowatt-hour (kWh).

Q3: Why is my actual bill different from the calculation?
A: This calculator provides estimates. Actual costs may vary due to: standing charges, tiered pricing, VAT, or appliance power fluctuations.

Q4: How can I reduce my electricity costs?
A: Use energy-efficient appliances, turn off unused devices, use timers, and consider energy-saving modes.

Q5: Does this include the daily standing charge?
A: No, this calculates usage costs only. Most UK tariffs also include a daily standing charge (typically around 53p/day).