Measuring carbon emissions is a powerful first step toward effective climate action. By gaining a clear picture of your emissions profile, you can identify the biggest sources and focus your efforts where they’ll have the greatest impact.

Why measure emissions?

Insight: Understand where your emissions come from and which areas offer the most potential for reduction.

Action: Set meaningful reduction targets and build a strategy to achieve them.

Impact: Align your efforts with science-based goals and contribute to a low-carbon future.


Whether you're a business, community group, or individual, measuring emissions helps turn intention into action.

Emission Calculators

  • For Individuals:

    Future Fit by Auckland Council

    Take 5 minutes to get a snapshot of your footprint or stay longer to choose new actions, challenge friends, track and share your progress to become Future Fit.

    Visit Future Fit 

  • For Individuals:

    Carbon Calculator by Climate Hero

    Measure your personal carbon emissions by taking 5 minutes to answer questions on Housing, Travel and Consumption.

    Visit Climate Hero Carbon Calculator 

  • For Churches and Charities:

    360°carbon by A Rocha

    The church carbon calculator specifically takes into account the church environment and questions are framed so that users will find it fit for a church’s context.

    Visit A Rocha 360°carbon 

  • For Businesses:

    Climate Action Toolbox by New Zealand Trade and Enterprise

    This is a free online tool that helps New Zealand businesses create tailored action plans to reduce carbon emissions and improve sustainability. It offers practical steps, emissions tracking, and planning tools to support climate-friendly business practices.

    Visit Climate Action Toolbox 

  • For Individuals, Businesses and Organisations:

    Online Calculators by Ekos

    Five calculators measuring business, lifestyle, household, flight and driving emissions. Find out how to apply for Ekos Carbon Friendly recognition.

    Visit Ekos 

  • For Organisations:

    Measuring Emissions Guide by Ministry for the Environment


    A government resource helping organisations to measure and report on their greenhouse gas emissions. Includes official reporting advice and emissions factors.

    Visit Ministry for the Environment 

  • For Energy:

    Carbon Emission Calculator by Ecotricity

    Find out how your current energy usage stacks up in terms of emissions using figures on your energy bill. Or discover how much you can save with an EV car with our Fuel Saver Calculator.


    Visit Ecotricity 

  • For Productions:

    Carbon Calculator by Greenlit

    This carbon calculator has been created to assist you in monitoring and reporting on your carbon emissions and waste produced through the course of your production.

    Visit Greenlit 

  • For Hospitality:

    LoCarb Programme by Hospitality NZ

    Find tools and resources to equip yourself to measure your carbon footprint, understand your environmental responsibility, and identify cost savings and emission reduction strategies.

    Visit LoCarb 

Other Useful Resources

Greenhouse Gas Protocol sets the international standards to measure and manage emissions.

Cross-sector, country-specific and sector-specific tools are available to help use the standards and guidance.

Visit the Greenhouse Gas Protocol website

A guide for businesses to measure energy use and improve efficiency.

Visit GenLess Energy Use

Science-led certifications, assurance, and advisory services help businesses reduce emissions, improve operational performance, and gain a competitive edge.

Visit Toitū Envirocare