Energy
What the electricity and the fuel actually cost, and what the electricity actually emits.
The prices here are yours, never ours: a tariff differs by country, by supplier, by contract and by the hour, so assuming one would be wrong for almost everybody reading. The one figure that is not yours — how much carbon a kilowatt-hour carries where you live — comes from a named source with the year it was measured.
What your electricity emits, using the carbon intensity of your own country's grid.
Electricity Cost CalculatorWhat an appliance costs to run, per day, per month and per year, at your own tariff.
Energy Tariff ComparisonTwo electricity or gas offers compared on your consumption, with the point where the other one wins and whether off-peak pays.
Fuel Consumption CalculatorHow much your car really uses, from a fill-up and the distance driven: litres per 100 km, km per litre and miles per gallon.
Fuel Cost CalculatorWhat a journey costs in fuel or in electricity, and the two compared when you give both.
Gas Cost CalculatorFrom two gas meter readings to kilowatt-hours and a cost, with the conversion figure your bill gives in m³ or cubic feet.