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The CO2 Calculator enables customers to find out the CO2 emissions of the parcels they entrust to Colissimo each month (based on the number of parcels invoiced), and to print out an annual CO2 Certificate for each of their accounts or sub-accounts. Monthly data are available at the end of month M+1. The Annual Certificate is available at the end of the 1st quarter for the previous year.
The calculation method used is that described by the Parcel Delivery Environmental Footprint (PDEF).
This is a standard (EN17837) validated by the European Committee for Standardization (CEN). It proposes methodologies for calculating and declaring the greenhouse gas (GHG) emissions of parcels. It is inspired by the Global Logistics Emissions Council (GLEC), a voluntary partnership of logistics organizations and industry associations led by the Smart Freight Center (SFC).
The CO2 Parcel calculator takes into account emissions in line with the GLEC (Global Logistics Emissions Council) Framework, which in turn is aligned with the ISO 14083 international standard (calculation of transport GHG emissions).
These data include GHG emissions from all means of transport (air, road and sea).
In concrete terms,
- CO2 emissions in TTW (Tank to Wheel) include all Scope 1 and 2 emissions and Scope 3 category 4 (transport subcontracting category).
- CO2 emissions in WTW (Well to Wheel) include all Scope 1 and 2 emissions, Scope 3 category 4 (Transport subcontracting) and Scope 3 category 3 (upstream energy factors).
For further information: or To find out more: ?
According to the GHG Protocol (international protocol providing a framework for measuring, accounting for and managing greenhouse gas emissions), GHG emissions are divided into 3 Scopes:
- Scope 1, corresponding to internal / direct emissions from energy sources emitting during use (heating oil, gas, fuels, etc.).
- Scope 2, corresponding to internal/indirect emissions from upstream energy sources (electricity, heating networks, etc.)
- Scope 3 corresponds to external emissions from activities outside the company (upstream and downstream), broken down into 15 categories:

Once parcel invoicing is complete, data for month M is available from the 20th of the following month.
There are several filters for displaying data: you can select one or more accounts, a period (quarter, half-year, year) and a destination (France, Overseas or International). For international flows, the calculation stops at the point of arrival in the country of destination.
How these filters work is explained in the methodological note.
It is not currently possible to select a period over several years.