Why Electricity Bill Calculator Exists
A small, independent website for anyone who wants to check an electricity bill without wrestling with a spreadsheet.
Electricity bills should be easier to check
The basic calculation is not complicated: subtract two readings, multiply the units used by the tariff rate, then add the standing charge and any applicable tax. Finding the right figures and putting them together is where it gets awkward.
This website does that arithmetic and shows each part of the result. It is an estimate, not a replacement for your supplier’s bill, but it gives you something clear to compare against it.
The result shows usage, standing charges and the calculation behind the total.
Your meter readings and tariff figures are calculated in your browser. No account is required.
The calculator is not owned by an electricity supplier or comparison service.
How to use it
Use an older reading and a newer reading from the same meter and register.
Copy the unit rate and daily standing charge from your bill or supplier’s app.
Compare the estimate, dates and readings with the figures on your supplier’s bill.
How the site is funded
Electricity Bill Calculator is free to use. Advertising helps pay for hosting, maintenance and further improvements. The site also contains a clearly labelled Good Energy referral link; the site owner may receive a reward if someone switches through it.
Commercial links do not change the calculator result. You should always compare the full tariff and choose what suits your home.
Check your electricity use
No sign-up and no meter details are uploaded.