Lifestyle
Carbon Footprint Calculator
Calculate your carbon footprint
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What does the Carbon Footprint Calculator do?
It helps you calculate your carbon footprint. It supports both US and metric units.
What inputs do I need?
Enter Monthly electricity, Monthly gasoline, Monthly car miles, and Flight hours per year.
Are decimals supported?
Yes, you can use decimal values where appropriate.
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About this tool
This Carbon Footprint Calculator turns your inputs into practical results. Provide Monthly electricity, Monthly gasoline, and Monthly car miles to calculate Monthly CO2 and Annual CO2.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.