Emissions & resource use calculators

Estimate emissions and diversion using explicit factors and definitions.

Choose the right calculation

Match emission factors to the activity, country, year and reporting boundary. Default factors are illustrative rather than certified. Waste diversion definitions should specify whether reuse, recycling and other destinations count.

Find a tool for your question

Energy & environment↗

Carbon Emissions Calculator

Estimate emissions from activity multiplied by a chosen emission factor.

Energy & environment↗

Waste Diversion Calculator

Calculate the share of waste sent to recycling or reuse instead of disposal.

Does one emission factor work for every location?

No. Energy mix, methods, geography and reporting year can change a factor, so use an authoritative factor appropriate to your calculation.

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