Enter two meter readings and the rates from your latest tariff for a clear estimate of usage and standing charges.
The familiar calculation from the original site, explained more clearly.
We subtract the previous meter reading from the current reading to find the kilowatt hours used.
Your usage is multiplied by the unit rate, then the daily standing charge is added for the billing period.
Keep VAT off for inclusive figures, or add 5% when working from VAT-exclusive rates.
Enter the older reading first and the newer reading second. Ignore digits shown in red and numbers after a decimal point. Economy 7 meters have two readings that should be calculated separately.
Learn how to read your meter →Simply copy the unit rate and standing charge shown on your bill—there is no account connection or sign-up.
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