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Carbon Hub → CBAM calculator — what your EU exports will pay
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CBAM calculator — what your EU exports will pay

Certificates = embedded emissions × volume × phase-in share × price. This calculator does it live for cement, steel, aluminium and fertilizers at the official Q1-2026 price of €75.36/t — and shows the 2030/2034 ramp most spreadsheets miss.

Calculate your carbon bill →CBAM guide

How the math works

Example: 100,000 t steel (BF-BOF, 1.9 t CO2/t) exported in 2026: 190,000 t × 2.5% × €75.36 ≈ €358k. Same volume in 2030: × 48.5% ≈ €6.9M. In 2034: × 100% ≈ €14.3M. The ramp, not today's number, is what belongs in your五-year plan — budget with the slider below.

The calculator

CBAM cost calculator — 2026 to 2034

Pick your sector and production, choose «exporting to EU», and move the year slider: certificates = embedded emissions × phase-in share × €75.36.

20160
20262034
Your annual carbon cost — year
—
—
in 2030
—
in 2034 — full price
—
estimated emissions
—
payable share now
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How is this calculated?
Emissions = production × typical sector intensity (cement 0.70, steel BF-BOF 1.90, EAF 0.40, aluminium 1.60 direct, ammonia 2.00 t CO2/t; gas power 0.37, coal 0.95 t/MWh — IEA/EC benchmark ranges). Cost = emissions × price × payable share. Inside the EU ETS the payable share follows the official free-allocation phase-out; for exporters without a domestic price it follows the CBAM phase-in. Your verified (MRV) emissions give the exact figure.
Why does my bill explode by 2030?
Not a forecast — a law. Regulation (EU) 2023/956 cuts free allocation for CBAM sectors from 97.5% (2026) to 48.5% payable in 2030 and 100% in 2034. A plant paying for 2.5% of its benchmark emissions today pays for 48.5% in 2030 — ~19× more certificates at the same price.
What is CBAM and does it apply to me?
The EU Carbon Border Adjustment Mechanism prices the embedded CO2 of cement, iron & steel, aluminium, fertilizers, hydrogen and electricity imported into the EU. If you export these to the EU and have no domestic carbon price, your importer buys CBAM certificates at the EU ETS-linked price (€75.36 in Q1 2026) on a rising share of embedded emissions — 2.5% in 2026 → 100% in 2034.
Where do the prices and data come from?
EU ETS: Trading Economics (10 Jun 2026). CBAM certificate: European Commission Q1 2026 official price. UK ETS: ICE/Statista (2025). China: Argus (Mar 2025). California: CARB auction (Feb 2025). National taxes: World Bank State & Trends of Carbon Pricing 2025 / ICAP 2025. Facility emissions: Climate TRACE satellite estimates (2023) — indicative, not verified declarations.
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FAQ

Questions

How is CBAM cost calculated?
Embedded emissions (t CO2/t product, verified or default) × exported volume × phase-in share (2.5% in 2026 → 100% in 2034) × certificate price (€75.36/t in Q1 2026, EU ETS-linked).
Is this CBAM calculator free?
Yes — and results are shareable: the URL updates as you move sliders. It uses typical sector intensities; your verified MRV data gives the exact figure.
What price does the calculator use?
The official EC certificate price €75.36/t (Q1 2026) for CBAM mode and live-fetched EUA for EU ETS mode; the price slider lets you test €20–160 scenarios.
How this page is built: heat-loss figures follow ASTM C680 / ISO 12241 (the method behind our public calculators); facility emissions from Climate TRACE & EU ETS verified data across 30,000+ industrial sites; the 2026–2034 schedule is Regulation (EU) 2023/956, not a forecast. Published by Inzonex — manufacturer of modular removable insulation (UK Patent GB2508992.1). Spotted an error? Tell us — we correct on evidence.
Source: Inzonex Carbon Hub — inzonex.co.uk/carbon · prices dated as shown on each figure · schedule per Regulation (EU) 2023/956 · indicative analytics, not compliance advice.