Electricity Emissions Calculator
Estimate emissions using your chosen electricity emissions factor.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations retain full precision.
- The default factor is illustrative, not a country-specific value. Enter a current factor from your electricity supplier or inventory source.
Example Calculation
- Electricity consumed: 300 kWh
- Emissions factor: 0.4 kg CO₂e/kWh
300 kWh with an illustrative factor of 0.4 produces 120 kg CO₂e.
Frequently asked questions
How do I use this calculator?
Enter electricity consumed, emissions factor. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Emissions = energy × emissions factor. The default factor is illustrative, not a country-specific value. Enter a current factor from your electricity supplier or inventory source.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.