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Tools / Energy / Electricity Bill Calculator

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  1. Electricity Bill Calculator
  2. Frequently Asked Questions

Use our calculator to easily estimate your next electricity bill. Simply enter your previous and current meter readings, along with your unit rate and standing charge, to get an estimate of your bill for the selected period.

p
p
Days
£0.00
Electricity usage cost:£0.00
Standing charge:£0.00
VAT @ 5%:£0.00
Electricity used in billing period:0 kWh
Days in billing period:0
Total:£0.00

Frequently Asked Questions

How does the electricity bill calculator work?
Our calculator estimates your electricity bill by calculating the difference between your previous and current meter readings, multiplying that by your unit rate, and adding the standing charge for the billing period you select.
What information do I need to use the calculator?
You’ll need the following details:
  • Previous meter reading: The reading from the start of your billing period.
  • Current meter reading: The most recent meter reading.
  • Electricity unit rate: The price you pay per kilowatt-hour (kWh) of electricity.
  • Electricity standing charge: The fixed daily charge applied by your energy provider.
  • Billing period: The timeframe for which you want to calculate the bill (e.g. 30 days, 90 days, etc.).
Where can I find my meter readings?
You can find your previous meter reading on your last electricity bill. The current reading can be obtained by checking your meter directly. Smart meters may provide readings through your energy supplier’s app or website.
What is the electricity unit rate?
The unit rate is the cost per kilowatt-hour (kWh) of electricity you consume. It can be found on your electricity bill or by contacting your energy provider.
What is the standing charge?
The standing charge is a daily fee that covers the cost of maintaining your energy supply. It’s applied regardless of how much electricity you use and is typically shown on your bill.
How accurate is the calculator?
Our calculator provides an estimate based on the details you provide. Your actual bill might vary slightly due to additional charges, taxes, or meter adjustments by your supplier.
Can I use the calculator if I’m on a fixed-rate tariff?
Yes. If you’re on a fixed-rate tariff, simply enter your contracted unit rate and standing charge to get an accurate estimate for your billing period.
How do I calculate my electricity usage in kWh?
Our calculator will automatically do this for you. It subtracts the previous meter reading from the current meter reading to determine the number of kWh you’ve used.
What should I do if my bill is higher than expected?
If your bill is higher than the estimate provided by the calculator, possible reasons might include:
  • Incorrect meter readings or tariff details.
  • Additional fees applied by your energy provider, such as taxes or late fees.
  • Increased electricity consumption compared to previous periods.
How do I reduce my electricity bill?
To lower your bill:
  • Be mindful of your electricity usage by turning off appliances when not in use. Try using our Electricity Cost Calculator to help identify devices that are using more energy.
  • Consider upgrading to energy-efficient appliances.
  • Compare different energy tariffs to find a more competitive rate.
  • Monitor your usage with a smart meter.
Can I use this calculator if I have solar panels?
Yes. However, the calculator doesn’t account for electricity generated by solar panels. You’ll need to manually subtract the electricity generated by your panels from your total usage to get an accurate bill estimate.
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