Product Carbon Footprint Examples: Real Figures From Published Reports

Key Takeaways:

• A product carbon footprint (PCF) is the greenhouse gas total attached to one defined unit of a product, expressed in CO2e and calculated under ISO 14067 or the GHG Protocol Product Life Cycle Accounting and Reporting Standard.
• Quorn publishes three figures for the same 300g pack of frozen mince: 1.26, 1.89 and 2.06 kg CO2e per kg of product, depending on whether the boundary stops at the factory gate, the shop or the fork.
• Apple puts the 256GB iPhone 17 at 55 kg CO2e and the 512GB version at 61 kg, with production accounting for about three quarters of the total before the phone is ever charged.
• Volvo's EX30 carries a footprint of 18 to 36 tonnes CO2e over 200,000 km, with battery chemistry and charging electricity explaining the whole of that spread.
• Embodied emissions become a UK tax base on 1 January 2027, when the Carbon Border Adjustment Mechanism applies to imported aluminium, cement, fertiliser, hydrogen, iron and steel.
• Two assessments of the same product can differ by a factor of three without either being wrong, which is why a PCF is only usable alongside its boundary, functional unit and data year.

A product carbon footprint is the total greenhouse gas emissions attached to one defined unit of a product, expressed as carbon dioxide equivalent, and every example in this article comes from a company report you can open and check.

Each report contains the detail that makes the number mean something: the functional unit, the system boundary, the standard applied and the year the underlying data came from.

What follows is the set of figures, the arithmetic that produces them, the reasons two honest assessments of the same product land in different places, and the UK and EU rules now turning product-level emissions data into a legal requirement rather than a marketing choice.

What Is a Product Carbon Footprint?

A product carbon footprint is the quantity of greenhouse gases released across the life cycle of a single product, converted into a common unit of carbon dioxide equivalent (CO2e) using global warming potentials.

It is a life cycle assessment narrowed to one impact category. A full LCA also covers water, land use, acidification and other effects; a PCF covers climate only.

The arithmetic is simply activity data multiplied by an emission factor, summed across every process inside the boundary. Fifty kilowatt-hours of grid electricity multiplied by a published factor in kg CO2e per kWh gives the emissions for that step, and the same operation repeats for every input, process and transport leg.

What makes a PCF difficult is deciding what counts.

How a PCF Differs From a Corporate Carbon Footprint

A corporate carbon footprint covers everything an organisation is responsible for in a reporting year, split into Scope 1, Scope 2 and Scope 3.

A PCF covers one product across its whole life, whoever owned which step. So it cuts across the scopes rather than following them, and emissions from a supplier's smelter sit in Scope 3 of the corporate inventory and inside the product boundary of the PCF at the same time.

Both are built from much of the same raw data. Finance and sustainability teams already collecting activity data for SECR reporting have most of the site-level inputs a PCF needs, but allocated differently: per unit produced rather than per year.

Why the Functional Unit Decides Everything That Follows

The functional unit is the measured quantity the result is expressed against. One kilogram of product, one pair of shoes, one kilowatt-hour delivered over a battery's service life, 200,000 kilometres of driving.

Change it and the headline number moves without a single emission changing.

• Quorn reports its frozen mince at both 1.26 kg CO2e per kilogram and 0.09 kg CO2e per 75g serving.
• Volvo reports the EX30 at both 23 tonnes per vehicle and 0.11 kg CO2e per kilometre.

These are the same assessments described two ways.

Published Product Carbon Footprint Examples

The table below collects figures that the manufacturers themselves have published, with the boundary each one uses.

Quorn Mince

Quorn has published product footprints since 2012 and verifies them through the Carbon Trust and ClimatePartner. Its 2024 results document reports every product against three boundaries, which is unusually transparent and makes the effect of boundary choice visible.

For the 300g UK frozen mince, farm to factory gate gives 1.26 kg CO2e per kg. Add the transport, storage and distribution to the supermarket and farm to shop gives 1.89. Farm to fork, which also counts home storage, cooking and disposal of the packaging, gives 2.06 kg CO2e per kg, a figure 63 per cent above the factory gate one. Same product, same standard, same verifier.

Geography moves it again. Quorn's Australian mince is 1.62 kg CO2e per kg at the factory gate and 4.22 at the shop, because the distribution leg is long. A buyer comparing a UK figure against an Australian one, or a gate figure against a fork figure, is not comparing products at all.

Apple's iPhone

Apple publishes a Product Environmental Report for every device. The report for the iPhone 17 puts the 256GB model at 55 kg CO2e over its modelled life, calculated under ISO 14040, 14044 and 14067, using 100-year global warming potentials from the IPCC Sixth Assessment Report and assuming three years of use.

The stage split is the interesting part. Materials and process emissions account for 53 per cent of the total and manufacturing electricity for a further 23 per cent, so roughly three quarters of the footprint exists before the phone reaches a customer. Charging it for three years contributes 18 per cent, transport 4 per cent, and end-of-life processing under 1 per cent.

And storage capacity moves the number more than most buyers would guess. The 512GB iPhone 17 is 61 kg against 55 kg for the 256GB, a difference of 6 kg driven almost entirely by the extra flash memory, which is carbon-intensive to fabricate.

Volvo EX30

Volvo's EX30 carbon footprint report is a cradle-to-grave assessment under ISO 14067 over a 200,000 km lifetime. The company reports a range rather than a single figure: 0.089 to 0.16 kg CO2e per km for the LFP model and 0.11 to 0.18 for the NMC model, which works out at 18 to 36 tonnes per vehicle.

Two variables produce that spread. The 51 kWh lithium iron phosphate battery gives a lower life cycle footprint than the 69 kWh nickel manganese cobalt pack, and the electricity used for charging varies enormously by grid. On a European mix the LFP car comes in at 23 tonnes and the NMC car at 28. Volvo puts the cradle-to-gate share of the LFP version at an estimated 14.8 tonnes, so the car has emitted most of its lifetime total before it is driven at all.

That is the structural difference between an electric vehicle and a phone, and it is why EV footprints are so sensitive to assumed lifetime mileage. Volvo also models a 300,000 km lifetime, which cuts the per-kilometre figure by roughly a third. [Flag: the 14.8 tonne cradle-to-gate figure and the 300,000 km sensitivity are drawn from reporting of the Volvo carbon footprint report; confirm both against the report PDF.]

Steel, Aluminium and Cement: When the Footprint Becomes a Tax

Commodity materials are the category where PCFs stopped being voluntary. Aluminium smelted on hydropower and aluminium smelted on coal-fired grid power carry very different embodied intensities for an identical ingot, and from 1 January 2027 that difference carries a price in the UK.

The UK Carbon Border Adjustment Mechanism charges importers on the emissions embodied in aluminium, cement, fertiliser, hydrogen, and iron and steel goods, with the liability calculated as embodied emissions multiplied by the CBAM rate, less relief for any deductible carbon price already paid overseas. Importers can use verified actual emissions data or a government default value. The methodology sits in the Carbon Border Adjustment Mechanism (Emissions and Verification) Regulations 2026.

Where a verified figure from the producer is not available, the default applies, so the practical choice for an importer is between collecting product-level emissions data from the supplier and paying tax on a government assumption.

Working a Product Carbon Footprint Out From Activity Data

Take a manufactured component with a cradle-to-gate boundary and a functional unit of one unit produced. The sequence runs:

1. Define the goal, unit and boundary - Cradle to gate for an intermediate product whose end use is unknown; cradle to grave for a finished good.
2. Map the process - Every input, process step, transport leg and waste stream inside the boundary, with its physical quantity per unit produced.
3. Collect activity data - Kilograms of material, kilowatt-hours of electricity, cubic metres of gas, tonne-kilometres of freight.
4. Apply emission factors - Supplier-specific data where it exists, published factors where it does not.
5. Allocate - Where one process yields several outputs, split the emissions by mass, by energy content or by economic value, and state which.
6. Report by stage - Total CO2e per functional unit, plus the percentage contribution of each life cycle stage.

For UK activity data, the reference set is the annual UK Government greenhouse gas conversion factors, published by DESNZ on 11 June 2026 for the 2026 factor year. A site burning 50,000 kWh of natural gas at 0.18231 kg CO2e per kWh on a gross calorific value basis contributes 9.12 tonnes CO2e to the year's production, and that figure divides across units made. [Flag: verify both the 2026 natural gas factor and the 2026 UK electricity factor against the published DESNZ spreadsheet before publication.]

One detail matters more than its obscurity suggests. The 2026 update cut the UK grid electricity factor by 26 per cent against the 2025 edition, partly because DESNZ changed methodology and removed the two-year lag in the underlying data. Any product assessed on UK grid electricity will show a lower footprint this factor year than last, with no physical change whatsoever.

Why Two Footprints for the Same Product Rarely Match

Four variables explain most of the divergence between assessments.

1. Boundary - Cradle to gate stops at the factory exit. Cradle to grave includes distribution, use and disposal. The Quorn figures show a 63 per cent gap between the two extremes on an identical product.
2. Emission factors and their vintage - A factor is an average of something, built from a dataset with a date on it. Using ecoinvent, a government dataset and a supplier's own verified figure for the same input will produce three results.
3. Allocation - A process producing a main product and a by-product has to split its emissions somehow. Mass-based, energy-based and economic allocation can give materially different answers for the same facility, and economic allocation moves with commodity prices.
4. Data quality - Spend-based estimates convert money into emissions using a sector average. They are quick, and they move when prices move rather than when emissions do. Activity-based data converts physical quantities and is what a verifier will want for anything material.

So the first question to ask about any product footprint is not whether the number is high or low. It is what was included, what factor set was used and when.

Which Standard Applies

ISO 14067 and the GHG Protocol Product Standard describe the same basic method and are routinely used together. PEF matters because EU regulation reaches for it: where a delegated act specifies a PEF-based methodology, that method decides the declared figure, whatever an ISO-based study produced.

The Rules Turning PCFs Into Obligations

Three regimes matter, and none of them yet obliges a UK manufacturer selling domestically to produce a product carbon footprint.

• CBAM - The UK mechanism applies from 1 January 2027 to the five sectors named above, and the EU's own CBAM moved into its definitive phase at the start of 2026. Both make embodied emissions a reportable, priced quantity at the border.
• The EU Battery Regulation - Regulation (EU) 2023/1542 requires a carbon footprint declaration for each battery model from each manufacturing plant, expressed in kg CO2e per kWh of total energy delivered over the battery's service life. The dates in Article 7 run from the later of a fixed calendar date and 12 to 18 months after the Commission adopts the relevant delegated act. That act had not been adopted as of autumn 2026, so the declaration obligation has not yet commenced for any battery category. [Flag: confirm current delegated act status against EUR-Lex and the Commission's register immediately before publication.] The digital battery passport is fixed in the text at 18 February 2027.
• Ecodesign and the Digital Product Passport - The Ecodesign for Sustainable Products Regulation (EU) 2024/1781 has been in force since 18 July 2024 and works product group by product group through delegated acts. The first working plan, adopted in April 2025, prioritises iron and steel, aluminium, textiles and apparel, furniture, tyres and mattresses. No product-group delegated act had been adopted as of autumn 2026, so published timings for those groups remain indicative rather than binding.

None of this is settled law for most products yet, and anyone planning on the basis of indicative dates should check the current position with a qualified adviser before committing budget.

What a Verifier or Customer Will Ask For

Expect four questions, and expect them in this order.

1. Where did the activity data come from, and can you show the meter reading, the invoice or the bill of materials behind it?
2. Which emission factor was applied to each line, from which dataset, and for which factor year?
3. Who allocated the co-products, and on what basis?
4. What proportion of the footprint rests on primary data rather than industry averages, and which life cycle stages are those averages concentrated in?

The answers tend to break in predictable places. Purchased goods and services is the usual one, where spend-based proxies stand in for real supplier data, and upstream transport is close behind, where distances are assumed rather than recorded. Then the use phase, where an assumed lifetime quietly carries a large share of the total, as the EX30's sensitivity to assumed mileage shows.

A footprint that arrives without a stated data-quality split usually has a secondary database doing the work that primary data was supposed to do.

More Information

• Gaia carbon accounting software measures Scope 1, 2 and 3 emissions against the GHG Protocol and the annual UK Government conversion factors, and generates SECR, UK SRS, PPN 006 and CSRD/ESRS E1 reports from one dataset. [Flag: Gaia product scope, features and pricing to be verified against the live page; this article makes no claim that the platform produces product-level footprints or LCAs.]
• UK Government greenhouse gas conversion factors, DESNZ, for activity-based emission factors.
• Carbon Border Adjustment Mechanism factsheet, HMRC and HM Treasury, for the 2027 UK regime.
• GHG Protocol Product Standard, WRI and WBCSD, free to download.
• UK carbon emissions statistics for the national picture that product-level data sits inside.

FAQs

What is an example of a product carbon footprint?

Quorn's 300g frozen mince is 1.26 kg CO2e per kilogram of product on a farm-to-factory-gate basis, verified by the Carbon Trust and published in the company's 2024 footprinting results. Apple's 256GB iPhone 17 is 55 kg CO2e over a modelled three-year life. Volvo's EX30 is 23 tonnes CO2e over 200,000 km on a European electricity mix. Each figure is only meaningful alongside its stated boundary.

How do you calculate the carbon footprint of a product?

Multiply each activity by its emission factor and sum the results across every process inside the chosen boundary. The work sits in the preparation: defining the functional unit, mapping the process, collecting physical activity data per unit produced, selecting factors that match the geography and year, and allocating emissions where a process yields more than one output.

What is the difference between cradle-to-gate and cradle-to-grave?

Cradle to gate counts emissions from raw material extraction up to the point the product leaves the factory. Cradle to grave adds distribution, the use phase and end-of-life treatment. Intermediate products whose final use is unknown are normally assessed cradle to gate; finished consumer goods are assessed cradle to grave. The gap between the two can exceed 50 per cent on the same product.

Which standard should a UK business use for a PCF?

ISO 14067 is the international standard for quantifying and reporting product carbon footprints, and the GHG Protocol Product Life Cycle Accounting and Reporting Standard is commonly applied alongside it. PAS 2050:2011 remains in use through certification schemes. Where EU regulation applies, a PEF-based methodology set out in a delegated act will govern the declared figure instead.

Is a product carbon footprint legally required in the UK?

Not generally, and not yet. UK CBAM makes embodied emissions in imported aluminium, cement, fertiliser, hydrogen, iron and steel a priced and reportable quantity from 1 January 2027, and EU rules on batteries and ecodesign will require product-level declarations for specified categories once the relevant delegated acts are adopted. Outside those regimes, PCFs are driven by customer requirements rather than statute.