Electricity Carbon Footprint Calculator
Every kWh of electricity carries a carbon cost that depends on how your grid generates power. This calculator estimates your annual CO₂ footprint from electricity.
Change any number below — your result updates instantly, no button to click.
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How it works
Monthly CO₂ (kg) = monthly kWh × grid intensity ÷ 1000. Yearly CO₂ = monthly × 12. Trees to offset = yearly CO₂ ÷ 21, since a mature tree absorbs roughly 21 kg of CO₂ per year. Lower your footprint by using less power or switching to a greener tariff.
Frequently asked questions
What grid intensity should I use?
It varies widely by country and even by hour. Coal-heavy grids exceed 700 g/kWh; grids rich in renewables or nuclear can be under 100. Your utility or national grid operator often publishes this figure.
How can I reduce my electricity carbon footprint?
Use less energy, shift use to times when the grid is greener, choose a renewable tariff, or generate your own power with solar.
Is the “trees” figure exact?
No — it is an illustrative comparison. Real tree absorption varies by species, age and climate. Treat it as a rough sense of scale.
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