Paste raw activity data — even monthly meter tables, duplicate invoices and supplier returns. The tool maps each line, converts units, sums time-series and estimates missing periods, removes duplicates, and flags what looks wrong. The hard part of carbon accounting was never the arithmetic.
1 · Smart import — paste messy data (items, or month/quarter tables)
Employees (optional):
1b · Meter readings — how each monthly/quarterly total is built (auditable)
Needs your decision — anomalies to resolve
2 · Inventory — edit any line, add more by hand
Scope 1 — direct0 t
Scope 2 — electricity & heat0 t
Scope 3 — value chain0 t
3 · Result — footprint & data-quality checks
0t CO₂e / year
Recalculated from every line as you edit.
0%of your footprint is Scope 3 — the emissions you don't own, but cause.
Scope 1 — direct
Scope 2 — energy
Scope 3 — value chain
Data-quality checks (the part a calculator skips)
Emission factors & sources (a footprint you can't check isn't worth much)
Method: activity data × emission factor, grouped by GHG Protocol scope, units converted to each factor's base unit. Missing meter periods are estimated from the average of reported periods; duplicate lines are removed; returns net off. Grid values are approximate; spend/currency use approximate rates. A transparent demonstration, not a certified inventory.