Terms of use
This calculator provides indicative estimates of the carbon footprint associated with digital preservation activities using the DPC Carbon Footprint Calculation Tool v1.0 methodology.
Indicative estimates
The results are estimates based on the data, assumptions, emission factors, and methodology selected by the user. They are intended to support research, planning, comparison, and internal analysis. They should not be treated as audited greenhouse-gas inventories, regulatory disclosures, or certified carbon accounting unless independently validated for that purpose.
User responsibility
You are responsible for the accuracy, completeness, legality, and suitability of the information you enter, including any source, confidence, and notes fields. Do not enter passwords, credentials, or unnecessary personal, confidential, or restricted information.
Saved projects
You may use the calculator and export an Excel file without signing in. A Google account is required only when you choose to save a project online. Saved projects are linked to the signed-in account and are subject to the access controls described in the Privacy page.
Availability and changes
The application, reference data, interface, and supporting methodology may be corrected or updated over time. Availability is not guaranteed, and users should retain their own exported copies of important calculations.
Methodology and attribution
This implementation is based on the DPC Carbon Footprint Calculation Tool v1.0. Refer to the Methodology page for the calculation basis, limitations, and methodological notes used by this web implementation.