Compare two tariffs

Put both tariffs side by side against the energy you actually use.

Include gas

Electricity used per year

kWh

Tariff A (your current one)

Electricity unit rate

p/kWh

Electricity standing charge

p/day

Exit fee (if you'd pay one)

Tariff B (the one you're considering)

Electricity unit rate

p/kWh

Electricity standing charge

p/day

Exit fee (if you'd pay one)

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Latest official Ofgem data

The official benchmark right now

These are the GB average figures from the latest official Ofgem price cap, covering 1 July to 30 September 2026. Use them as a sense check against the numbers you enter above.

Electricity unit rate26.11p per kWh

Electricity standing charge57.19p a day

Gas unit rate7.33p per kWh

Gas standing charge29.04p a day

Source: Ofgem · Period: 1 July to 30 September 2026 · Last updated: 2026-09-13

View data source

Why a lower unit rate does not always win

A tariff is two prices, not one: what you pay per kWh and what you pay per day regardless of usage. A low unit rate with a high standing charge beats the alternative only above a certain level of consumption. That crossover is the break-even point, and it is the number this page works out for you.

At 2,700 kWh a year, 1p per kWh is worth £27 — while 10p a day on the standing charge is worth £36.50. For a low-usage household the daily charge often matters more than the headline rate.

Comparing fairly

Use the same usage figure for both tariffs, take both rates from the same point in time, and include any exit fee you would actually pay. If one tariff is fixed and the other tracks the cap, remember the capped one can move at the next review — the next price cap page shows what has already been published.

Mistakes that change the answer

Comparing unit rates alone and ignoring the standing charge.
Leaving out an exit fee on the tariff you would be leaving.
Using an optimistic usage figure rather than what your bills actually show.
Comparing a rate including VAT with one excluding it.

Common questions

What is the break-even usage point?

The yearly consumption at which both tariffs cost exactly the same. Below it, the tariff with the lower standing charge wins; above it, the one with the lower unit rate does.

Should I include an exit fee?

Yes, if you would have to pay one to leave your current tariff. It is a real, one-off cost of switching and it is added to the first-year total here.

Can I compare gas and electricity together?

Yes. Turn gas on and enter both sets of rates and usage; the totals then cover both fuels.

See whether you could pay less

Your results above are based on official Ofgem figures and your own numbers. Switching is optional and nothing here changes what the calculation says.

Compare your tariff against another

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