Energy Tools
Free calculators to help you understand your gas and electricity costs. Enter your own numbers from your bill for exact results — no estimates, no agenda.
Energy Usage Estimator
Not sure where your energy spend is going? Select your household appliances and get a monthly cost breakdown by device in seconds.
Energy Calculators
5 toolsUnit Cost Calculator
Enter your pence per kWh rate and usage to see your gas or electricity cost — daily, monthly and annually.
Calculate CostStanding Charge Calculator
See how much your fixed daily standing charge adds up to over a month, quarter or full year.
Calculate ChargesDirect Debit Checker
Compare your current direct debit against your actual usage to see if you are overpaying or building up credit.
Check My Direct DebitGas to Electricity Unit Converter
Convert gas meter readings in m³ or ft³ to kWh — useful for checking your bill or comparing dual fuel tariffs.
Convert UnitsEconomy 7 Calculator
Calculate your costs across day and night rates and see if you are making the most of your off-peak electricity.
Calculate E7 Cost