Electricity Carbon Footprint Calculator
Fill in the values and the answer updates as you type.
How the Electricity Carbon Footprint Calculator works
Emissions = kWh × grid emission factor. The factor depends on how your electricity is generated, from near 0.02 for hydro-heavy grids to over 0.8 for coal-heavy ones; your utility or national grid operator publishes it. A mature tree absorbs roughly 21 kg of CO₂ a year, so the tree count is a rough illustration only. Example: with the default values, monthly emissions comes to 157.5 kg CO₂.
Inputs and results
The Electricity Carbon Footprint Calculator takes 2 inputs and gives 4 results.
What you enter
- Electricity used per month (kWh) — starts at 350.
- Grid emission factor (kg CO₂/kWh) — starts at 0.45.
What you get
- Monthly emissions (kg CO₂)
- Yearly emissions (kg CO₂)
- Yearly emissions (tonnes CO₂)
- Trees to offset (approx.)
Example: Electricity Carbon Footprint Calculator with the starting values
With electricity used per month 350 kWh and grid emission factor 0.45 kg CO₂/kWh, the calculator returns:
| Monthly emissions (kg CO₂) | 157.5 |
|---|---|
| Yearly emissions (kg CO₂) | 1,890 |
| Yearly emissions (tonnes CO₂) | 1.89 |
| Trees to offset (approx.) | 90 |
Change any value above and the results update straight away.
Electricity Carbon Footprint Calculator FAQ
How do I use the Electricity Carbon Footprint Calculator?
Enter electricity used per month and grid emission factor in the fields, then read monthly emissions (kg co₂), yearly emissions (kg co₂), yearly emissions (tonnes co₂) and trees to offset (approx.) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Electricity Carbon Footprint Calculator calculate?
CO₂ emissions from your electricity use. It returns monthly emissions (kg co₂), yearly emissions (kg co₂), yearly emissions (tonnes co₂) and trees to offset (approx.) from the 2 values you provide.
What values does the Electricity Carbon Footprint Calculator start with?
It opens with electricity used per month 350 kWh and grid emission factor 0.45 kg CO₂/kWh so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Electricity Carbon Footprint Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Electricity Carbon Footprint Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.