Personal Carbon Emissions and Offset Calculator for US
Number of people in household:  
Car Travel
Total yearly car miles:
(All cars combined)
Average gas mileage (miles per gallon):
(All cars averaged)
Air Travel
Yearly air miles traveled:
(Note: NYC to LA round trip is 5,000 miles)
Average monthly electric bill:
(If you don't know, enter average $100)
Average monthly natural gas bill:
(If you don't know, enter average $105)
For heating oil users only:
enter average monthly fuel oil bill:
Do you recycle paper? Yes  No 
Do you recycle aluminum, glass, plastic? Yes  No 
This is your per capita share of the
carbon footprint of society.

It takes into account food,
entertainment, schools, roads, etc.
I spend LESS than average
I'm an average consumer
I spend MORE than average
Totals for year
 Update Totals     
TOTAL metric tons CO2:    
Amount of offset needed:  
Number of acres saved by offset:  

Carbon Calculator Methods
Calculator gives an approximate estimate only. Data from E.P.A. with air travel at .45 lbs of CO2 per air mile (for average medium-length flight), and with the "General" per capita contribution from UN ( of approximately 19 metric tons of CO2 per capita for USA, less the average travel and energy contributions, which are computed separately, and customized for 50% less and 50% more. Emissions are given in the international units of metric tons of carbon dioxide. One metric ton is 2,204 pounds.