Resources

Carbon footprint calculators and planning tools

Free tools to measure your footprint, check your obligations and plan a tree programme. They run in your browser; nothing is stored.

Event & travel footprint All tools

Free to use · nothing is stored · sources for every factor

Event & travel footprint

Estimate the travel and venue emissions of a conference, offsite or event.

Quick answer

How can a company calculate its carbon footprint?

Start with activity data for a year (electricity, fuels and travel) and multiply each by an emission factor. Our business carbon footprint calculator does this for Scope 1, 2 and flights; the event calculator covers travel and venue power; and the trees-to-offset calculator shows how many trees balance what remains.

Resources

Measure and check

Know your footprint and your obligations.

Business carbon footprint

Scope 1, 2 and flights for a year.

Open →

CSR obligation calculator

2% of average net profit, worked out.

Open →

Mandate checker

CSR, BRSR, CCTS, green belt.

Open →

BRSR readiness check

Ten questions and a score.

Open →

Green belt calculator

Green belt area and trees, by clearance category.

Open →

Resources

Plan your programme

Turn the numbers into a tree programme.

Trees-to-offset calculator

Trees to balance your emissions.

Open →

Programme finder

The right programme for your goal.

Open →

Project cost estimator

Trees, budget and survival.

Open →

Carbon credit estimator

Estimate credits from a tree project.

Open →

Common questions

Are these calculators free?

Yes. All tools are free and run in your browser; nothing you enter is stored.

Which emission factors do you use?

India's CEA grid factor for electricity, IPCC defaults for fuels, and UK DESNZ 2025 factors as an approximation for travel. Every factor can be edited.

Can I use the results in my reports?

Use them as screening estimates. For BRSR or audited inventories, use your own records and an assurance provider.

How do trees fit in?

After reducing emissions, trees can balance part of what remains. The trees-to-offset calculator shows how many.