CarbonToolby Signum Data · Desktop & web edition
Carbon Footprint Calculatorv1.1
CarbonTool turns everyday activity data — distance, electricity and spend — into a structured greenhouse-gas inventory. Emissions are calculated with published EEA / IPCC factors, split by GHG-Protocol scope, and rolled up live into a clear, reportable footprint.
Scope 1 — direct
Scope 2 — energy
Scope 3 — value chain
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Key features
Everything you need to measure and report emissions
A focused calculator built around the GHG Protocol — fast to fill in, transparent in its numbers, ready to export, and documented by a built-in Help tab that carries the full user manual.
Scope-based calculator
Seventeen activity inputs mapped to the right scope, with emissions computed as value × factor.
Car, km driven → Scope 1
Electricity → Scope 2
Fifteen spend categories → Scope 3
Live results & breakdown
Total, Scope 1, Scope 2 and Scope 3 cards, alongside a per-category breakdown showing where the emissions come from and each category’s share.
Sessions & trends
Label a snapshot (e.g. Q1 2025), save it, and compare periods side by side — total and scope split — to see progress over time.
Transparent emission factors
A dedicated Factors tab listing every category with its unit, scope, factor and EEA / IPCC source, so each number can be traced back to its origin.
Branded PDF report
A four-page report — scope summary, category detail, the history of every saved session, and the charts — identical on desktop and web.
Save & reload your case
Store inputs and sessions as a JSON case file to move work between machines — the same format in both editions. Both also auto-save the form you are working on and restore it next time.
Applications
Where CarbonTool fits
From a first baseline to routine quarterly reporting, the same workflow scales with you.
01
Corporate footprinting
Build a defensible Scope 1–3 baseline for an organisation, site or product line using consistent, documented factors.
02
ESG & disclosure prep
Produce the scope split and category detail that underpin ESG reporting and sustainability disclosures.
03
Ongoing tracking
Save each period as a session and watch the trend — spotting reductions and hotspots quarter over quarter.
Inside the tool
A look at CarbonTool
The same workflow on the desktop and in the browser, from data entry through to the exported report. Click any screenshot to see it full size.
Calculator — the seventeen activity inputs, each tagged with its scope.
Overview — Total / Scope 1 / 2 / 3 cards and emissions by category, largest contributors first.
Charts — the scope distribution and the per-category bar chart.
Trends — saved sessions compared side by side, total and scope split.
Factors — the factor table with its EEA / IPCC sources.
Report — a text preview of the report before it is exported.
PDF export — the branded report with scope summary, category detail and charts.
Help — the built-in user manual, from quick start to the full category reference.
Estimates only. CarbonTool is a decision-support aid, not a certified GHG inventory. Emission factors are EEA / IPCC approximations; confirm figures against your reporting standard before disclosure.
Signum Data