Energy Bill Calculator

Estimate your bill from usage, unit rates and standing charges. Add gas to see your combined dual-fuel cost.

Electricity

Usage (kWh per year)

Unit rate

p/kWh

Standing charge

p/day

Gas

Usage (kWh per year)

Unit rate

p/kWh

Standing charge

p/day

Cut my usage by

0%40% less

Estimated annual bill

per month · per week

Cutting usage saves

per year

per month

Estimate only. Find your real unit rates and standing charges on a recent bill or your in-home display.

Cumulative bill With % cut

Spread using a typical UK seasonal pattern - energy use peaks in winter, so the line is steeper Oct–Mar.

Month	Estimated bill	Running total

Scenario	Per year	Per month	vs first

Compared against the oldest saved scenario (bottom of the list).

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