UK Gas Bill Calculator
Includes VAT + volume?kWh conversion. Choose
100 ft³
if your imperial meter reads in hundreds.
Start meter reading
End meter reading
Days in period
Meter unit
kWh
m³
ft³
100 ft³ (hundreds)
If your bill shows ft³ and your usage seems 100× off, pick 100 ft³.
VAT rate (%)
Enter prices in
Pence
Pounds
Unit price (per kWh)
Standing charge (per day)
Calorific value (MJ/m³)
(used for m³/ft³/100ft³)
Correction factor
(used for m³/ft³/100ft³)
Calculate
Reset