Carbon Footprint Calculator
Estimate annual CO2 emissions from electricity, natural gas, driving, and flights.
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What This Calculator Does
Estimate annual CO2 emissions from electricity, natural gas, driving, and flights.
It combines Electricity Use, Electricity Emissions Factor, Natural Gas Use, Gas Emissions Factor to estimate Total Annual Emissions, Total (kg CO2), Total (lbs CO2).
Formula & Method
Notation used in the formulas: R = Total Annual Emissions; x_{1} = Electricity Use; x_{2} = Electricity Emissions Factor; x_{3} = Natural Gas Use; x_{4} = Gas Emissions Factor; x_{5} = Driving; x_{6} = Vehicle Emissions Factor.
Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.
Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.
Inputs Used
- Electricity Use: Used directly in the calculation.
- Electricity Emissions Factor: Adjust for your grid mix
- Natural Gas Use: Used directly in the calculation.
- Gas Emissions Factor: Used directly in the calculation.
- Driving: Used directly in the calculation.
- Vehicle Emissions Factor: Used directly in the calculation.
- Flights: Used directly in the calculation.
- Flight Emissions Factor: Used directly in the calculation.
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