Carbon Calculator

For producers supplying EU importers

Your EU buyer needs CBAM data. Here's exactly what to send.

If you don't give your importer real emissions figures, they must use the EU default values — which are set high on purpose and make your goods more expensive to import than a competitor who did supply data. This page lists the figures they need, and gives you a free tool to calculate and document them.

Calculate my product footprintSee an example report

The data your importer has to report

FieldWhat it means for you
Goods identification (CN code)The customs code on your export paperwork, plus the installation that produced the goods.
QuantityTonnes of goods supplied in the reporting period.
Direct embedded emissionsFuel combustion and process emissions at your installation, per tonne of goods.
Indirect embedded emissionsPurchased electricity consumed in production, per tonne of goods.
Precursor emissionsEmbedded emissions of purchased inputs such as billet, clinker or anodes.
Production route / methodHow the goods were made, and whether figures are measured or calculated.
Carbon price paidAny domestic carbon price already paid on those emissions — deductible for your buyer.

CBAM figures are reported per tonne of goods and split into direct and indirect. A general product carbon footprint is a strong starting point — it gives you the material, energy and factor documentation — but you must present the split and the per-tonne basis in the form your buyer requests.

How the calculator gets you most of the way

Stage-by-stage totals

Materials, inbound transport, production energy and packaging are calculated separately, so you can read your on-site energy contribution off the report.

Traceable factor register

Every factor is listed with its database, dataset year and value — the level of documentation an importer's verifier will ask about.

Supplier-specific data flags

Mark each input as primary, supplier-provided or secondary, so your buyer can see where the real measured data sits.

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CBAM questions suppliers ask

Why is my EU customer asking me for emissions data?
Under the EU Carbon Border Adjustment Mechanism, the importer must declare the embedded emissions of covered goods. They can only use real values if the producer supplies them — otherwise they fall back to EU default values, which are deliberately set high.
Which goods are covered?
Iron and steel, aluminium, cement, fertilisers, hydrogen and electricity, plus a list of downstream products such as screws, bolts and certain steel and aluminium articles. Coverage is defined by CN code, so check the code on your customs paperwork.
What is the difference between direct and indirect emissions here?
Direct emissions come from fuel combustion and process reactions at your own installation. Indirect emissions come from the electricity you purchased and consumed for production. CBAM reporting asks for both, expressed per tonne of the good.
What unit should the figure be in?
Tonnes CO₂e per tonne of goods produced. If you also report a per-piece footprint for other customers, keep both figures and state the conversion clearly.
Do precursor materials matter?
Yes. For most covered goods the embedded emissions of purchased precursors — for example steel billet used to make a finished article — must be included. Ask your own upstream supplier for their figure and record it as supplier-specific data.
Does using this tool make me CBAM compliant?
No. The legal declaration obligation sits with the EU importer, and your own reporting duties depend on your customer's requirements. This tool helps you produce a transparent, traceable cradle-to-gate footprint with a documented factor register that your customer can work from.

Background reading: CBAM and product emissions and ISO 14067 explained.