Should You Fix Your Energy Tariff?
Compare staying on your current variable (price-cap-linked) rates against a fixed-deal quote. Set your own assumption for where the price cap goes next — nobody can predict it, so see how sensitive the answer is.
Estimate only. This is an estimate for information only, not financial advice. Future price cap movements are unknown — the outcome depends entirely on the assumption you enter.
Enter your rates to compare
Your variable vs fixed annual cost, saving and break-even point appear here as you type.
Why this is a bet on the price cap, not a sure thing
A fixed energy deal locks your unit rates and standing charges for the length of the deal, however the Ofgem price cap moves. A variable tariff moves with the cap every quarter — so whether fixing is worth it depends entirely on where the cap goes over your fixed term, and nobody, including energy companies, reliably knows that in advance. This calculator compares your annual cost on today's variable rates (with your own assumption for how much the cap might move) against the fixed deal, including any exit fee for leaving your current deal early. The "break-even" figure shows how much the cap would need to move for the two options to cost exactly the same — a useful sanity check on how confident you'd need to be in your own prediction.