What is gram CO2e?

Gram of CO2 equivalent (g CO2e) is a small-scale carbon emissions unit. It is used to express the carbon footprint of individual products, food items, and short journeys where emissions are minimal.

What is kilogram CO2e?

Kilogram of CO2 equivalent (kg CO2e) is the standard unit for expressing carbon footprint measurements. It quantifies greenhouse gas emissions by converting them to the equivalent warming impact of carbon dioxide over a specified timeframe.

Worked examples

1 gram CO2e = 0.001 kilogram CO2e

1 kilogram CO2e = 1 kilogram CO2e

More Carbon Emissions conversions

Assumption: electricity-to-CO2 uses 0.385 kg CO2e per kWh (≈2597 Wh per kg CO2e). Actual factors vary by country, grid mix, and year.