A simplified emissions estimator, for learning not for reporting

Enter a few numbers to see how Scope 1, 2 and 3 figures are built up. It's meant to make the mechanics visible, nothing more.

This tool produces an illustrative estimate for educational purposes only. It uses simplified, publicly referenced factors rather than verified figures for your specific supplier, region or reporting year. It is not suitable for CSRD disclosures, audits, or any compliance submission.

Illustrative monthly estimate

Scope 10.00 t CO2e
Scope 20.00 t CO2e
Scope 3 (partial)0.00 t CO2e
Total (illustrative)0.00 t CO2e

These figures use simplified factors and cover only the inputs above. A full Scope 3 inventory includes many more categories than delivery distance alone.

Where the figures come from

The factors used above are simplified averages drawn from ranges commonly published for grid electricity, natural gas combustion and road fuel combustion across European sources. They are not tied to a specific reporting year or verified national dataset, so they should not be quoted in any formal disclosure without checking a current, authoritative source first.

Before the deadline arrives

Collecting your first data set, without a consultancy invoice

Close view of a small business owner sorting paper utility bills and receipts at a desk

Start with twelve months of electricity invoices, not one.

A single bill tells you a price. A year of bills tells you a pattern, including seasonal spikes from heating or refrigeration that matter for Scope 2.

Close-up of an electricity meter display showing consumption readings

Start with fuel receipts sorted by vehicle, not by month.

If you run more than one van, grouping receipts by vehicle first makes it far easier to spot which one is doing most of the driving.

Start with a single email to your largest suppliers.

Ask your biggest supplier, by spend, whether they can share delivery frequency and distance. One reply is more useful than ten calculator guesses.

Start with a spreadsheet, not a subscription.

A simple table with date, category and quantity gets you further in month one than signing up for software before you know what you need it to do.

Want to see how free calculators handle this same data?

The comparison page walks through what each category of tool does once you feed it real numbers.

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