Energy bill calculator

Fuel included Electricity only Gas only Gas and electricity

Billing period

Start date

End date

Both the start date and end date count as chargeable days.

Electricity charges

Electricity usage (kWh)

Electricity unit rate (p/kWh)

Electricity standing charge (p/day)

Usage basis Based on actual readings Based on estimated readings I do not know

VAT treatment

Are the rates you entered already VAT-inclusive?

Yes / as shown on my domestic bill No / exclude VAT from this estimate I do not know

Rate changes during this period

Did the unit rate or standing charge change during this bill period?

No Yes I do not know

The amount you pay by Direct Debit is not necessarily the same as the energy used during this bill period. Payments can reflect seasonal smoothing, a previous debit or credit, debt repayment, previous underpayment or account adjustments. Your account balance is separate from the period energy charge.

Enter your figures to see a result.

This is a simple estimate, not a bill or a current official tariff. Enter the rate shown on your own statement.

What it can and cannot show

It can illustrate usage cost from your own inputs. It cannot determine whether a bill is correct without the account’s dates, readings, tariff terms and supplier calculation.