Carbon Footprint Calculator

Estimate your Scope 1, 2 and indicative Scope 3 emissions from your energy use — using published emission factors, calculated entirely in your browser.

Free, no sign-up
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Data stays in your browser
1

Company Information

2

Annual Energy Consumption

Check your utility bills

Heating, hot water, industrial processes

Fleet vehicles, generators, equipment

Company cars, light vehicles

Tip: Enter your best estimates. You can find this data in utility bills, fuel receipts, or facility management records.

Free • No registration • Calculated in your browser

How this calculator works

Published factors

Scope 1 uses DEFRA fuel-combustion factors; Scope 2 uses country-average grid intensities. Sources are shown with every result.

Runs in your browser

Everything is computed client-side. We don't send your figures anywhere or store them.

Honest about limits

Scope 3 is an indicative sector estimate, and credit prices are illustrative bands — this is a planning estimate, not an audited inventory.