Free calculator

GHG Emissions Calculator

Turn common activity data into a first-pass emissions estimate, a request-readiness view, and an evidence checklist for customer, investor, and platform requests.

Country routes

Use the right screening context

Country pages keep the same calculator flow and add local grid factor notes, caveats, and request context. Countries are not Keslio offices.

United StatesUseful for supplier requests, investor questionnaires, CDP prep, and internal carbon baselining before a full GHG inventory.United KingdomDesigned for SECR preparation, supplier questionnaires, CDP prep, EcoVadis evidence planning, and board-level carbon screening.United Arab EmiratesUseful for customer sustainability requests, free zone procurement requests, investor diligence, and first-time GHG baselines.IndiaSupports BRSR preparation, supplier questionnaires, investor screening, and internal emissions data collection.PhilippinesBuilt for supplier requests, customer portals, investor diligence, and first pass emissions planning.SingaporeUseful for customer requests, procurement portals, board prep, and early reporting readiness before a full inventory.Saudi ArabiaUseful for supplier requests, project bids, investor screening, and preparing evidence for a fuller GHG inventory.GermanySupports supplier questionnaires, CSRD value-chain requests, EcoVadis preparation, and internal GHG baselining.NetherlandsUseful for supplier requests, CSRD value-chain requests, EcoVadis preparation, and internal emissions baselining.

Transparent factor ledger

The v1 factor pack uses public sources and labels confidence. JSON and CSV downloads are available for review.

View factor dataset

Request readiness

Results are framed for CDP, EcoVadis, buyer portals, and early internal inventory planning without assurance claims.

Supplier request support

GHG advisory support

Keslio can turn the screening output into a reviewed inventory, methodology note, and evidence file.

GHG service

Methodology summary

The calculator multiplies activity data by public emission factors. Scope 2 uses location-based grid electricity factors. Scope 3 covers selected flights, hotel nights, commuting, waste, and spend-based purchased goods and services.

This is a screening calculator. It should not be used as an assured disclosure, regulatory filing, carbon credit claim, or product carbon footprint without review by a qualified practitioner.