Donaldson R F Electricity Cost & Bill Calculator
Calculate how much it costs to run an appliance, or estimate a whole bill including the standing charge.
0Per day
0Per month
0Per year
Whole bill calculator
Most UK electricity bills are unit rate × units used, plus a fixed daily standing charge — this adds the standing charge the appliance calculator above doesn't include.
0Usage cost
0Standing charge
0Total bill
The example unit price and standing charge are the Ofgem price cap typical direct-debit electricity rates for England/Scotland/Wales, 1 October–31 December 2026 (Ofgem, "Standing charge for electricity and gas", last verified 2026-10-08) — both fields are editable, since your own supplier, region and payment method set your actual rates. The price cap limits what suppliers can charge on standard variable tariffs; fixed-rate deals can differ.