Build your IPCC-compliant
carbon inventory, traceable to every factor.
No credit card, no demo call. Create a free account, pick your sector, enter your data and see your Tier 1 result — powered by 140+ country grid factors and IPCC 2006 methodology.
Built for consultancies, corporate ESG teams and national inventory compilers worldwide.
Start with your reporting boundary.
A single facility, a whole country, a company or a city each need a different inventory structure. Pick the card that matches your work — each opens a tool built for that boundary, and you license only that tool.
Compare all tools, standards and coverageSource category
Five IPCC sector tools
Energy, IPPU, Agriculture, LULUCF and Waste — focused calculations with sector-specific methods and tiers.
For: Sector specialists, researchers and single-sector studies
Multi-sector boundary
National Reporting Suite
Bring all five IPCC sectors into one reporting year, GWP basis and consolidated inventory workspace.
For: National inventory compilers and their advisers
Organisation boundary
Corporate Carbon Footprint
Account for Scope 1, Scope 2 and all 15 Scope 3 categories, with CBAM/ETS readiness analysis and verification-supporting reports.
For: ESG teams, consultants and exporters to the EU
Community boundary
CityCarbon
Prepare GPC BASIC/BASIC+ inventories and SECAP reporting for cities and local authorities.
For: Municipalities and local authorities
Used together, CarbonTrack Core, MRV Pro and ETS pass the corporate inventory into verification, and verified emissions into the ETS compliance position. Compare tools and bundles
For personal use, free with an account: My Carbon Diary
Data & methodology
Built on internationally recognised databases.
Every factor in the calculation engine is traceable to a published, internationally accepted source. Each result discloses the exact method, tier and factor reference it used — and every workspace keeps that lineage visible without forcing unrelated accounting boundaries into one interface.
How CarbonTiers calculatesIntergovernmental Panel on Climate Change
2006 Guidelines + 2019 Refinement; AR4 / AR5 / AR6 global warming potentials.
Corporate Standard & Scope 2 / Scope 3 Guidance
Organisational and value-chain accounting boundaries and dual Scope 2 reporting.
2018 — Corporate GHG inventory & reporting
Inventory structure, categories and verification-ready documentation.
UK Government GHG Conversion Factors
Transport, waste and purchased-material (mass-based) emission factors.
Environmental Protection Agency
eGRID grid factors, Subpart W fugitive methane and WARM waste factors.
International Energy Agency
Grid electricity carbon intensity for 140+ countries and energy-use benchmarks.
Additional grid and residual-mix data: Ember, AIB, RTE, national TSOs (incl. TEİAŞ); spend-based Scope 3: EXIOBASE / EEIO. Compliance frameworks supported: EU CBAM, CSRD / ESRS E1 and CDP disclosure.
Every tool has its own user guide (web and PDF), kept in step with the calculation engine — read it before you license. Tools and their guides · See a sample report
Pricing that scales with you.
Start free, try any one paid tool for 7 days, then license only the tools you need — each IPCC sector can be bought on its own.
For students, NGOs and first-time inventories.
- One core module per IPCC sector · Tier 1
- AR5 / AR6 GWPs included
- Watermarked PDF export
- 7-day trial of any one paid tool · no card
For consultants, regulators and multi-site operators.
- Tier 1 / 2 / 3 + plant-specific factors
- CBAM cost simulator
- Scenario modelling & multi-year
- Multi-country grid library
- Carbon footprint tool (Scope 1 / 2 / 3) — sold separately
- One licence, your whole team. Every paid plan includes 1–3 extra seats: Pro adds 1, corporate tools 2, bundles 3.
- Sharing is free. Clients and auditors can view files without using a seat.
- Nobody loses work. If two people edit the same file, the platform warns before anything is overwritten.
Start your first inventory
today.
Create a free account and run your first Tier 1 calculation. When you are ready, try any one paid tool free for 7 days — no card required.