Energy & Sustainability worked example

Carbon Emissions Calculator with activity quantity of 62,500 activity units: a worked example

This worked example runs the carbon emissions calculator numbers for a tougher week than the baseline: activity quantity of 62,500 activity units instead of the typical 125,000 activity units. Estimate CO2e emissions from activity data, emissions factor, oxidation or loss factor, and reporting adjustment.

The inputs for this scenario

  • Activity quantity (fuel, energy, or material): 62,500 activity units (the input this scenario stresses; the baseline uses 125,000)
  • Emissions factor: 0.39 kg CO2e / activity unit (held at the documented default)
  • Oxidation, loss, or GWP factor: 1 x (held at the documented default)
  • Reporting boundary multiplier: 1 x (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base emissions = activity quantity × emissions factor × oxidation, loss, or GWP factor.
  • Reported CO2e emissions works out to 24,125 kg CO2e at these inputs, and this is the headline figure for the scenario.
  • Base emissions before boundary adjustment works out to 24,125 kg CO2e at these inputs.
  • Reporting boundary multiplier works out to 1 x at these inputs.
  • Activity emissions before GWP adjustment works out to 24,125 kg CO2e at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where activity quantity sits at 125,000 activity units and the headline result is 48,250 kg CO2e, this scenario comes in 50% below the baseline at 24,125 kg CO2e.
  • Use it when building or updating a greenhouse gas inventory, evaluating a fuel or energy switch, or allocating emissions to a product or facility. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Reported CO2e emissions: 24,125 kg CO2e (headline result)
  • Base emissions before boundary adjustment: 24,125 kg CO2e
  • Reporting boundary multiplier: 1 x
  • Activity emissions before GWP adjustment: 24,125 kg CO2e

Run it with your numbers

  • To rerun this with your own numbers, open the live Carbon Emissions Calculator calculator, set activity quantity to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.