Yale Community Carbon Fund Calculator

Yale Community Carbon Fund Calculator
What would you like to offset?*

Travel (one-time or infrequent trips)Commute (trips you take regularly, such as going to work)EventsQuick Offsets (pre-calculated options if you are unable to get more precise data)
Throughout this calculator, emissions are displayed in metric tons of carbon dioxide equivalent (mt CO2e). One metric ton is approximately 2,204 pounds and is the unit most commonly used to measure greenhouse gas emissions. Carbon dioxide equivalent units (CO2e) account for the fact that per unit, different greenhouse gases have varying impacts on climate change. Thus, the CO2e units standardize everything in terms of carbon dioxide. Learn more about the calculator methodology here.

Commute Emissions
Please check the boxes of the types of commuting you would like to offset.

BusCarTrain
Bus Commute Emissions
Please check the boxes of the types of bus travel you would like to offset.

CTTransitYale ShuttleOther Bus
Distance Calculator for Bus Commutes
CT Transit: How many miles of CT Transit travel do you take in a typical commute (one-way)?
Yale Shuttle: How many miles of Yale Shuttle travel do you take in a typical commute (one-way)?
Other Buses: How many miles of other bus travel do you take in a typical commute (one-way)?
How many days of this commute would you like to offset? (The Yale work year has 244 days)
Calculated One-Way Bus Commute Emissions in mt CO2e
Car Commute Emissions
Please check the box of the type of car that best describes the car you drive to work.

Efficient Car: Electric, Hybrid, etc. (~45miles per gallon)Small or Compact Car (~30 mpg)Full-size Car (~25 mpg)Pickup/SUV/Minivan (~18 mpg)I know how many miles per gallon my car gets and would like to input that manually.
Distance Calculator for Car Commutes
How many miles per gallon does your car get?
How far do you drive on a typical commute (one way)? (Use the distance calculator above if you are unsure)
How many days of this commute would you like to offset? (The Yale work year has 244 days)
Calculated One-Way Car Commute Emissions in mt CO2e
Train Commute Emissions
Please check the boxes of the types of train travel you would like to offset.

Metro North RailroadOther commuter railroadNew York City SubwayOther subway
Distance Calculator
Metro North: How far (one way) do you travel on Metro North for a typical commute? (Distance between New Haven - Grand Central is ~80 miles, one way)
Other Commuter Rail: How far (one way) do you travel on other commuter rail for a typical commute? (e.g. Shoreline East, NJ Transit)
NYC Subway: How far (one way) do you travel on the New York City Subway for a typical commute?
Other Subway: How far (one way) do you travel on other subway systems for a typical commute?
How many days of this commute would you like to offset? (The Yale work year has 244 days)
Calculated One-Way Train Commute Emissions in mt CO2e
Would you like the YCCF calculator to estimate the round-trip or just the one-way distance for all the commute distances you entered above?

Round-tripOne-way
Total Commuting Emissions in mt CO2e
Events: Travel Emissions
Would you like to offset the travel associated with your event?

YesNo
Follow the process outlined below to calculate the total emissions from travel for your event.
Please check the boxes of the types of travel you would like to offset.

AirplaneBusCarTrain
Air Travel Emissions
If you do not know the distance of your flight, calculate it here.
Please check the appropriate boxes.

One or more of the flights I would like to offset was less than 300 miles in length.One or more of the flights I would like to offset was between 300 and 2,300 miles in length.One or more of the flights I would like to offset was more than 2,300 miles in length.
Enter the distance of the first flight less than 300 miles (one-way).
If you took a second flight of less than 300 miles, enter the distance in the box below. Otherwise, leave this box blank.
If you have any additional flights of less than 300 miles that you would like to offset, enter the total distance of these flights (not including the two you put in above) in the box below. Otherwise, leave this box blank.
Enter the distance of the first flight between 300 and 2,300 miles.
If you took a second flight of between 300 and 2,300 miles, enter the distance in the box below. Otherwise, leave this box blank.
If you have any additional flights between 300 and 2,300 miles that you would like to offset, enter the total distance of these flights (not including the two you already entered) in the box below. Otherwise, leave this box blank.
Enter the distance of the first flight longer than 2,300 miles.
If you took a second flight of more than 2,300 miles, enter the distance in the box below. Otherwise, leave this box blank.
If you have any additional flights of longer than 2,300 miles that you would like to offset, enter the total distance of these flights (not including the two you already entered) in the box below. Otherwise, leave this box blank.
Short Haul Length
Medium Haul Length
Long Haul Length
Total Airplane Travel Emissions in mt CO2e
Bus Travel Emissions
Please check the boxes of the types of bus travel you would like to offset.

CTTransitYale ShuttleOther bus
Distance Calculator for Bus Travel
CT Transit: How many total miles of CT Transit travel would you like to offset?
Yale Shuttle: How many total miles of Yale Shuttle travel would you like to offset?
Intercity Bus: How many total miles of intercity bus travel would you like to offset?
Other Bus: How many total miles of other bus travel would you like to offset?
Total Bus Travel Emissions in mt CO2e
Car Travel Emissions
Please check the box of the type of car that best describes the car you drive to work.

Efficient Car: Electric, Hybrid, etc. (~45 miles per gallon)Small or Compact Car (~30 mpg)Full-size Car (~25 mpg)Pickup/SUV/Minivan (~18 mpg)
Distance Calculator for Car Travel
How many total miles of hybrid car travel would you like to offset?
How many total miles of small or compact car travel would you like to offset?
How many total miles of full-size car travel would you like to offset?
How many total miles of pickup, SUV, or minivan travel would you like to offset?
Total Car Travel Emissions in mt CO2e
Train Travel Emissions
Please check the boxes of the types of train travel you would like to offset.

Inter-city rail (e.g. Amtrak)Metro North RailroadOther commuter railroadNew York City SubwayOther subway
Distance Calculator
Intercity Rail: How many total miles of inter-city train travel would you like to offset?
Metro North: How many total miles of Metro North travel would you like to offset? (Distance between New Haven - Grand Central is ~80 miles, one way)
Other Commuter Rail: How many total miles of other commuter rail travel would you like to offset?
NYC Subway: How many total miles of New York City subway travel would you like to offset?
Other Subway: How many total miles of other subway travel would you like to offset?
Total Train Emissions in mt CO2e
Passengers and Total Emissions
How many passengers went on this trip (including yourself)?*
Total Travel Emissions
Events: Building Emissions
Please select the types of rooms you used. You can choose more than one type if you used multiple rooms.

Classrooms/Lecture Halls/Concert VenuesResidential College Facilities (e.g. dining halls, cafes, common rooms)Conference RoomsI'd rather just input the total square footage of the area I usedMy event was outside (no buildings used)
If you don't see the type of room you used, choose the one closest in square footage or manually input the number of square feet, following the instructions in the final box. If you need more help, email us at sustainability@yale.edu.

For all the room types below, please input the total number of hours your event occupied that type of room. For example, if you used five small classrooms for eight hours each, you would input "40" in the Small Classrooms/Seminar Rooms box. For your convenience, there is a calculator located below if you need it.
Small Classrooms/Seminar Rooms (~400 square feet):
hours
Medium-Sized Classrooms (~600 square feet):
hours
Lecture Halls (~1,700 square feet, about the size of Sudler Hall or LC101):
hours
Large Lecture Halls or Venues (~3,000 square feet, roughly the size of Dwight Hall or SSS 114):
hours
Battell Chapel:
hours
Woolsey Hall:
hours
Dining Halls (~2,850 square feet):
hours
Lounge/Common Room/Buttery (~1,500 square feet):
hours
Small Conference Rooms (~250 square feet):
hours
Medium Conference Rooms (~500 square feet):
hours
Large Conference Rooms (~1,000 square feet):
hours
Or, estimate the total square feet of a room you used that is not listed above and multiply by the number of hours you used this room.
hours * square feet
Calculator
Building Emissions in mt CO2e (Don't fill in this box, the calculator will do that for you!)
Quick Offsets
Short round-trip flight (e.g. NYC-Toronto or NYC-Washington, roughly 500 miles round-trip)
Medium round-trip flight (e.g. NYC-Minneapolis or NYC-Miami, roughly 2,000 miles round-trip)
Long round-trip flight (e.g. NYC-Los Angeles or NYC-London, roughly 6,000 miles round-trip)
Public Transit Commute to Yale for a Year (3 miles one-way used as the estimated distance)
Average Car Commute for a Year to Yale (10 miles one-way used as the estimated distance)
Typical 500-person event with food served
Typical 500-person event without food
Total Quick Offset Emissions in mt CO2e
Be careful with the back button below! If you would like to try new numbers or a different mode of transit/building, be sure to set all numeric values you have entered to zero so that they do not affect the final form calculations.

Total Emissions in metric tons CO2-equivalent
Total Commute Emissions (Don't fill in this box, the calculator will do that for you!)
Total Travel Emissions (Don't fill in this box, the calculator will do that for you!)
Total Building Emissions (Don't fill in this box, the calculator will do that for you!)
Your Total Emissions in mt CO2e
Suggested donation (using the current social cost of carbon of $36/ton CO2e)
Click submit to have the donation page open in a new tab.

Thanks for calculating your carbon emissions!
Air Travel: Short Haul < 300 mi (mtCO2e/passenger-mile)
Air Travel: Medium Haul 300-2,300 mi (mtCO2e/passenger-mile)
Air Travel: Long Haul > 2,300 mi (mtCO2e/passenger-mile)
Yale Shuttle (mtCO2e/passenger-mile)
CT Transit (mtCO2e/passenger-mile)
Intercity Bus (mtCO2e/passenger-mile)
Other Bus (mtCO2e/passenger-mile)
Efficient Car: Hybrid, electric, etc. (45 mpg) (mtCO2e/mile)
Small/Compact Car (30 mpg) (mtCO2e/mile)
Full-size Car (25 mpg) (mtCO2e/mile)
Pickup/SUV/Minivan (20 mpg) (mtCO2e/mile)
Intercity Rail (mtCO2e/passenger-mile)
MTA Commuter Rail (mtCO2e/passenger-mile)
Other Commuter Rail (mtCO2e/passenger-mile)
New York City Subway (mtCO2e/passenger-mile)
Other Transit Rail (mtCO2e/passenger-mile)
Small Classroom (mtCO2e/(hour * sq ft))
Medium Classroom (mtCO2e/(hour * sq ft))
Lecture Hall (mtCO2e/(hour * sq ft))
Large Lecture Hall/Concert Venue (mtCO2e/(hour * sq ft))
Battell Chapel (mtCO2e/(hour * sq ft))
Woolsey Hall (mtCO2e/(hour * sq ft))
Dining Hall
Lounge, Common Room, or Buttery
Small Conference Room (mtCO2e/(hour * sq ft))
Medium Conference Room (mtCO2e/(hour * sq ft))
Large Conference Room (mtCO2e/(hour * sq ft))
Average per square foot over all of Yale
Efficient Car MPG (Used to do calculations for user wanting to input MPG themselves)
Should be Empty:

Yale Community Carbon Fund Calculator

Commute Emissions

Bus Commute Emissions

Car Commute Emissions

Train Commute Emissions

Events: Travel Emissions

Air Travel Emissions

Bus Travel Emissions

Car Travel Emissions

Train Travel Emissions

Passengers and Total Emissions

Events: Building Emissions

Quick Offsets

Total Emissions in metric tons CO2-equivalent