THIS calculator is popular with students in the US. One of the features I particularly like is the inclusion of house construction as a contributor to carbon emissions.
It works like this: If building a housing unit emits, for example, 1,000 tonnes of CO₂ and the building lasts for 100 years, that is an emission rate of 10 tonnes per year. If I occupy the unit for one year, then I am responsible for those 10 tonnes.
Another great feature is education. If I am attending a university, or any other institute of education, I am responsible for a share of the carbon emissions from that institution.
The CoolCalifornia database has up-to-date information about the emissions from every major college in the US, along with a record of the number of students, so it’s easy for them to calculate the individual share of each student.