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Carbon footprint calculation · GHG Protocol · ISO 14064

Measure your emissions to the standard a verifier accepts.

From a free estimate on screen in minutes to a full inventory to ISO 14064-1, reduction projects to ISO 14064-2 and product footprints to ISO 14067. Every tonne traced to its source, its factor and the year that factor was published.

742t CO2e

237 tScope 1 · direct
484 tScope 2 · energy
21.1 tScope 3 · travel

The real output of KAMA’s engine, for an invented company used for demonstration.

202countries with a published grid factor
7greenhouse gases, CO₂ to NF₃
3 · 6Scopes and ISO categories, side by side
15Scope 3 categories screened
AR6IPCC warming potentials
0figures filled by guessing
Two frameworks, one inventory

Scopes of the GHG Protocol, and categories of ISO 14064-1

A customer abroad asks in Scopes; an auditor and the standard ask in categories. KAMA labels every source with both at once, so the same total reads the same either way and nothing is counted twice.

How they meet

  • Scope 1 is ISO category 1: fuel you burn, gases that leak, your own processes.
  • Scope 2 is ISO category 2: the electricity and energy you buy.
  • Scope 3 spreads across ISO categories 3 to 6: transport, what you buy, what you sell, and the rest.
  • Each line in a KAMA report carries its Scope, its ISO category and subcategory together.
Scope 1 Direct Scope 2 Purchased energy Scope 3 Value chain ISO category 1 Direct emissions and removals ISO category 2 Indirect emissions from imported energy ISO category 3 Indirect emissions from transportation ISO category 4 Indirect emissions from products the organization uses ISO category 5 Indirect emissions from the use of the organization’s products ISO category 6 Indirect emissions from other sources

Every category, every subcategory, and what it holds

The sources a KAMA inventory counts, each under its ISO 14064-1 subcategory with its place in the GHG Protocol beside it; where the two frameworks genuinely differ, it is said in one sentence.

1

ISO 14064-1 · category 1

Direct emissions and removals

1.1Stationary combustion
  • Fuel burned in fixed equipment (generators, boilers, furnaces)Scope 1
1.2Mobile combustion
  • Fuel burned by the organization’s own vehicles and mobile machinesScope 1
1.3Industrial processes
  • Emissions from industrial processes and chemical reactionsScope 1
1.4Fugitive releases
  • Refrigerant and air-conditioning gas lossesScope 1
  • SF₆ losses from switchgear and electrical equipmentScope 1
  • Fire-suppression gas dischargesScope 1
  • Methane from on-site wastewater treatment and septic tanksScope 1
1.5Land use and forestry
  • Land use, land-use change and forestry on the organization’s landScope 1The GHG Protocol reports land-sector emissions and removals apart from the scope totals; ISO counts them in category 1 and reports removals separately.
2

ISO 14064-1 · category 2

Indirect emissions from imported energy

2.1Imported electricity
  • Purchased electricityScope 2
2.2Other imported energy
  • Purchased steam, heat, district cooling and compressed airScope 2
3

ISO 14064-1 · category 3

Indirect emissions from transportation

3.1Upstream transport of goods
  • Transport of purchased goods to the organizationScope 3 · category 4: Upstream transportation and distribution
3.2Downstream transport of goods
  • Transport and distribution of the organization’s productsScope 3 · category 9: Downstream transportation and distribution
3.3Employee commuting
  • Employee commutingScope 3 · category 7: Employee commuting
3.4Client and visitor transport
  • Transport of clients and visitorsScope 3 · outside the fifteen categoriesThe GHG Protocol has no category for visitors’ travel; it is optional there, and is shown under Scope 3 outside its fifteen categories.
3.5Business travel
  • Business travel and hotel staysScope 3 · category 6: Business travel
4

ISO 14064-1 · category 4

Indirect emissions from products the organization uses

4.1Purchased goods
  • Purchased goods and materialsScope 3 · category 1: Purchased goods and services
  • Upstream emissions of purchased fuel and energy, and grid lossesScope 3 · category 3: Fuel- and energy-related activities
  • Water supplied to the organizationScope 3 · category 1: Purchased goods and services
4.2Capital goods
  • Capital goodsScope 3 · category 2: Capital goods
4.3Waste disposal
  • Waste and wastewater treated by othersScope 3 · category 5: Waste generated in operations
4.4Use of leased assets
  • Assets the organization leases inScope 3 · category 8: Upstream leased assets
4.5Services used
  • Purchased servicesScope 3 · category 1: Purchased goods and services
5

ISO 14064-1 · category 5

Indirect emissions from the use of the organization’s products

5.1Use stage of products
  • Further processing of intermediate products the organization sellsScope 3 · category 10: Processing of sold products
  • Use of the organization’s products by its customersScope 3 · category 11: Use of sold products
5.2Downstream leased assets
  • Assets the organization leases outScope 3 · category 13: Downstream leased assets
  • FranchisesScope 3 · category 14: Franchises
5.3End of life of products
  • End of life of the organization’s productsScope 3 · category 12: End-of-life treatment of sold products
5.4Investments
  • InvestmentsScope 3 · category 15: Investments
6

ISO 14064-1 · category 6

Indirect emissions from other sources

6Other sources
  • Other indirect emissions specific to the organizationScope 3 · outside the fifteen categoriesShown under Scope 3 outside its fifteen categories.
The method, in full

From an invoice to a tonne

Every line of a KAMA inventory is one equation, gas by gas, with the factor’s publisher and year beside it. Here is one line of the demonstration, exactly as the engine works it.

E = Σgas ( AD × EFgas × GWPgas )
activity data × emission factor × global warming potential

Diesel in company vehicles · 30,000 litres

Factor: UK Department for Energy Security and Net Zero (DESNZ), conversion factors 2026, per litre. Warming potentials: IPCC AR6 WG1, Table 7.15.

Gas AD × EF (kg/L) kg of gas GWP kg CO₂e
CO₂ 30,000 × 2.62818 78,845.4 × 1 78,845.4
CH₄ 30,000 × 1.036e-5 0.311 × 27 8.4
N₂O 30,000 × 1.248e-4 3.745 × 273 1,022.4
Total 79,876.1 = 79.88 t

Methane from burning fuel takes the non-fossil value (27, not 29.8): the CO₂ factor already counts all of the fuel’s carbon, and the higher value would count part of it twice. That is the GHG Protocol’s own advice (2024).

A report you can read in one look

Where every tonne comes from, and where it belongs

Each source flows to its Scope, its ISO subcategory and its category, with tonnes and shares on every band. 742 t CO₂e for the demonstration company: the chart below is the engine’s own drawing, the same one a client’s report carries.

Where the emissions come from: source → Scope → ISO subcategory → ISO category Scope by the GHG Protocol, category and subcategory by ISO 14064-1 (Annex B) — the same emissions, sorted two ways SOURCEGHG PROTOCOLISO SUBCATEGORYISO CATEGORY Purchased electricity484 t · 65% Scope 2 · Purchased energy484 t · 65% 2.1 · Imported electricity484 t · 65% Category 2484 t · 65% Fuel burned in fixed equipment32.0 t · 4.3% Scope 1 · Direct237 t · 32% 1.1 · Stationary combustion32.0 t · 4.3% Category 1237 t · 32% Fuel burned by the organization’s own …115 t · 16% 1.2 · Mobile combustion115 t · 16% Refrigerant and air-conditioning gas l…90.2 t · 12% 1.4 · Fugitive releases90.2 t · 12% Business travel and hotel stays21.1 t · 2.8% Scope 3 · Value chain21.1 t · 2.8% 3.5 · Business travel21.1 t · 2.8% Category 321.1 t · 2.8%
Scope 3, screened rather than skipped

The fifteen categories of the value chain

For most organizations Scope 3 is the largest share, and the one a customer abroad asks about first. A full inventory screens all fifteen, decides which are significant by a stated method, and says why the rest are left out.

Upstream

  1. 1Purchased goods and services
  2. 2Capital goods
  3. 3Fuel- and energy-related activities
  4. 4Upstream transportation and distribution
  5. 5Waste generated in operations
  6. 6Business travel
  7. 7Employee commuting
  8. 8Upstream leased assets

Downstream

  1. 9Downstream transportation and distribution
  2. 10Processing of sold products
  3. 11Use of sold products
  4. 12End-of-life treatment of sold products
  5. 13Downstream leased assets
  6. 14Franchises
  7. 15Investments
Methodology, stated rather than implied

The gases, the warming potentials and the factors

Global warming potentials (100 years)

Gas AR6 AR5
Carbon dioxide · CO₂ 1 1
Methane, fossil · CH₄ 29.8 30
Methane, non-fossil · CH₄ 27 28
Nitrous oxide · N₂O 273 265
HFC-32 771 677
HFC-134a 1,530 1,300
R-410A (blend) 2,255.5 1,923.5
Sulphur hexafluoride · SF₆ 24,300 23,500
Nitrogen trifluoride · NF₃ 17,400 16,100

IPCC AR6 WG1 Chapter 7, Table 7.15 and 7.SM.7; AR5 WG1 Chapter 8. AR6 is the default, as the GHG Protocol recommends; AR5 when a client’s regulator asks for it. A refrigerant blend is computed from its components, never stored.

Whose factor, in what order

The client chooses the source; where it publishes nothing for an activity, the next is used and the report says so.

1

Your country’s official factors

Grid electricity for 202 countries, each with its publisher and year.

2

IPCC 2006

The international defaults, per unit of energy.

3

UK DESNZ

Published gas by gas for the unit on your invoice.

✕

Never a guess

No factor for an activity? It is refused and named, not estimated. Another country’s grid is never used for yours.

The full footprint

Three services, each built to its standard

ISO 14064-1

Organizational GHG inventory

Every source at every site, by Scope and by category.

  • The inventory manual and its boundaries
  • The source register, and the activity data and factor register
  • The quantification methodology and the significance of indirect emissions
  • A base year and its recalculation rule, and the uncertainty assessment
  • The inventory report, with everything the standard requires

ISO 14064-2

Emission reduction projects

A project that reduces or removes emissions, with a documented baseline.

  • The project plan and the register of sources, sinks and reservoirs
  • The baseline report
  • The monitoring plan and the data quality procedure
  • The project report and the verification arrangements

ISO 14067

Product carbon footprint

A product’s footprint across its life cycle, for a customer, a tender or a label.

  • The goal and scope of the study
  • The life-cycle inventory register
  • The footprint study report
  • The critical review record
Know which one you need

An estimate, an inventory, and a verified statement

Free estimate Full inventory · ISO 14064-1 Verified statement
Who does it You, on the page KAMA with your team An independent verification body you engage
Sources counted Electricity, fuel, refrigerant, air travel Every source at every site As the inventory
Scope 3 Air travel only All 15 categories screened As the inventory
Evidence for each figure — ✓ ✓
Base year and uncertainty — ✓ ✓
Fit for CDP, a tender or a customer — ✓ ✓
Independent assurance — — ✓

KAMA prepares; it never verifies what it prepares. Until a verifier’s opinion is uploaded, a KAMA report says “not verified”.

Why now

Who is already asking for these figures

The EU’s Carbon Border Adjustment Mechanism · CBAM

  • 2023 – 2025

    Transitional period: importers report the embedded emissions of what they bring in.

  • 1 Jan 2026

    The definitive period applies to cement, iron and steel, aluminium, fertilisers, electricity and hydrogen.

  • Oct 2025

    Simplified: importers of 50 tonnes or less a year of those goods are exempt; the rest still covers over 99% of the emissions.

  • 1 Feb 2027

    CBAM certificates go on sale. A supplier’s own measured emissions can replace the EU’s default values.

Disclosure, at home and in the market

  • 2060

    Saudi Arabia’s net-zero target, with the Saudi Green Initiative’s aim to cut 278 million tonnes CO₂e a year by 2030.

  • 2021

    The Saudi Exchange’s ESG Disclosure Guidelines for listed companies, voluntary.

  • 2021

    Egypt’s Financial Regulatory Authority, decrees 107 and 108: ESG disclosure for listed and larger financial companies, with climate (TCFD) reporting above EGP 500 million.

  • IFRS S2

    The ISSB’s climate standard asks for Scope 1, 2 and 3 emissions measured to the GHG Protocol: the language investors and banks now use.

Sources: European Commission and Council of the EU (CBAM, Regulation (EU) 2025/2083); Saudi Green Initiative; Saudi Exchange; FRA Egypt; IFRS Foundation. Checked 8 October 2026.

How an engagement runs

Six steps, from the estimate to the verifier

1

The free estimate

You start on the page with no commitment, and learn the size of your footprint and its largest sources.

2

The quote

You ask for a quote for the service you need, and receive its papers in full.

3

Your data in one file

Consumption, sites, vehicles and equipment in one workbook, with your invoices and meter readings, every row tied to its evidence.

4

Calculated with the source you choose

Your country’s official factors first, or IPCC 2006, or UK DESNZ, and every exception stated in the report.

5

The report

In professional English, with Arabic on request. Your management approves it, and its figures are fixed once approved.

6

Independent verification

A verification body you engage; the report says “not verified” until its opinion is uploaded.

Questions

What clients ask first

What is the difference between a Scope and a category?

The three Scopes come from the GHG Protocol; the six categories from ISO 14064-1. They divide the same emissions two ways, and a KAMA report shows both.

Do we need Scope 3?

Most customers abroad and disclosure frameworks such as IFRS S2 and CDP ask for it. A full inventory screens its fifteen categories and decides which are significant by a stated method.

Is the free estimate enough for CDP or a customer?

No. It counts a limited set of sources, with no evidence and no base year; it tells you the size and the largest sources. What goes to an outside party is the full inventory.

Which warming potentials do you use?

IPCC AR6 by default, AR5 where a regulator asks for it, each value with its reference.

Who verifies the inventory?

An independent verification body you engage. KAMA prepares and never verifies what it prepares; it uses ISO 14064-3 only to guide your own internal review.

What data do we need?

Electricity and fuel invoices, refrigerant top-up records, vehicles and equipment, travel, and purchasing data for Scope 3, all in one workbook with your files as they are.

Know your footprint now

The estimate is free and the result is instant. For the full footprint, request a quote from the same page.

info@kama-ksa.com · +966 54 415 2456