CARBON CALCULATOR

INSTRUCTIONS

You can use this calculator to calculate your "carbon footprint" - your CO2 and other greenhouse gas emissions over a 12 month period.

You can make a quick calculation by estimating your answers, or you can choose a more accurate calculation by referring to your actual bills and usage data.

1. Enter your household data in section 1. Household usage is shared between the members of your household.
2. Enter your personal lifestyle and travel data in section 2. Personal usage applies to you as an individual.
3. The results will be calculated and updated dynamically as you enter your data.

Click here to try our Other Calculators.

ENTER DATA HERE
SECTION 1 (Household) How many people live in your household?     How much electricity is used in your household? Select one option: Small house / apt. (3,000 kWh) Medium (4,800 kWh) Large house (7,000 kWh) Enter actual amount used from your bills Latest reading (kWh) Reading 12 months before Tick the box if your electricity comes from a green provider kWh tonnes CO2 How much gas is used in your household? Select one option: Small house / apt. (12,000 kWh) Medium (18,000 kWh) Large house (27,000 kWh) Enter actual kWh used Amount (kWh) Calculate amount used from your bills Select how your gas is measured: Cubic metres (newer meters) 100's of cubic feet (older meters) Latest meter reading Reading 12 months before Difference kWh used kWh tonnes CO2 Is heating oil, coal, wood or bottled gas used in your household? No     Yes Enter your use over the last year: The number of litres of heating oil:   The number of kilograms of coal:         The number of kilograms of wood:         The number of kilograms of bottled gas:   Then select 'Calculate' tonnes CO2 How many cars are used by your household? Select one option: 0     1     2     3     4 Car 1 Select car size: Small car (37 mpg) Medium car (33 mpg) Large car (24 mpg) Enter actual mpg: Select 12-month car mileage: Low (6,000 miles) Average (9,000 miles) High (12,000 miles) Enter actual milage: tonnes CO2 Car 2 Select car size: Small car (37 mpg) Medium car (33 mpg) Large car (24 mpg) Enter actual mpg: Select 12-month car mileage: Low (6,000 miles) Average (9,000 miles) High (12,000 miles) Enter actual milage: tonnes CO2 Car 3 Select car size: Small car (37 mpg) Medium car (33 mpg) Large car (24 mpg) Enter actual mpg: Select 12-month car mileage: Low (6,000 miles) Average (9,000 miles) High (12,000 miles) Enter actual milage: tonnes CO2 Car 4 Select car size: Small car (37 mpg) Medium car (33 mpg) Large car (24 mpg) Enter actual mpg: Select 12-month car mileage: Low (6,000 miles) Average (9,000 miles) High (12,000 miles) Enter actual milage: tonnes CO2 SECTION 2 (Personal) FOOD How much of the food that you eat is organic? None Some Most All tonnes CO2 MEAT: How much meat/dairy do you eat personally? Above-average meat/dairy Average meat/dairy Below-average meat/dairy Lacto-vegetarian Vegan tonnes CO2 FOOD MILES: How much of your food is produced locally? Very little (much foreign / out of season food) Average Above average Almost all tonnes CO2 FOOD PACKAGING AND PROCESSING: How much of your food is packaged / processed (e.g. 'ready meals', tins)? Above average Average Below average Very little tonnes CO2 COMPOSTING: How much do you compost potato peelings, leftover and unused food etc? None Some All tonnes CO2 WASTE: How much food do you waste (on average, over one fifth of edible food is thrown away)? Above average (50% more) Average Below average (50% less) Very little (90% less) FOOD TOTAL including almost unavoidable 0.2 tonnes tonnes CO2 Health, education, etc : tonnes CO2 Bus Travel Enter the number of miles travelled in the last year (or leave blank) and select 'Calculate': Enter your regular mileage each week:   Enter your regular mileage each month: Enter your other mileage in the year: miles tonnes CO2 Train Travel Enter the number of miles travelled in the last year (or leave blank) and select 'Calculate': Enter your regular mileage each week:   Enter your regular mileage each month: Enter your other mileage in the year: miles tonnes CO2 Airline Flights: Any flights between domestic airports? No     Yes Enter the number of hours spent flying: Any nearby overseas flights? No     Yes Enter the number of return flights: Up to 500 miles 500-1000 miles 1000-1500 miles 1500-2000 miles 2000-2500 miles 2500-3000 miles 3000-3500 miles 3500-4000 miles 4000-4500 miles 4500-5000 miles hours flying Any medium range overseas flights? No     Yes Enter the number of return flights: 5000-5500 miles 5500-6000 miles 6000-6500 miles 6500-7000 miles 7000-7500 miles hours flying Any long range overseas flights? No     Yes Enter the number of return flights: 7500-8000 miles 8000-8500 miles 8500-9000 miles 9000-9500 miles 9500-10000 miles 10000-10500 miles Over 10500 miles hours flying total hours flying tonnes CO2 Other lifestyle choices: What is your miscellaneous spending? Above-average (5 tonnes CO2) Average (3.4 tonnes CO2) Below-average (2.4 tonnes CO2) Much below-average (1.4 tonnes CO2) Do you recycle paper, glass and metal? No Yes Do you recycle plastic apart from bags? No Yes tonnes CO2 Your total tonnes CO2 How your total compares to other parts of the world Your estimated total World average 4 UK 13.4 USA 20 Sweden, Switzerland 6.1 China 3.2 India 1.2 Tanzania 0.1 Sustainable 1.5 ?

NOTES

You can enter a decimal for number of people in household (eg. 2.5) if a member of your household is away for part of the year.

Electricity usage is measured in kilowatt-hours (kWh).