FABLE Calculator

An open-source tool designed to help governments, researchers, and organizations explore sustainable food and land-use pathways. With the FABLE Calculator, you can model how different policies impact food security, biodiversity, and climate goals.

What is the FABLE Calculator?

The FABLE Calculator is a user-friendly Excel-based model that allows users to simulate future food and land-use scenarios. It helps answer key policy questions, such as:

The tool provides insights by modeling:

Used by research teams with governments worldwide, the FABLE Calculator helps develop long-term integrated pathways, supporting decision-making, prioritization, and faciliating cross-sectoral dialogues to build a common vision for sustainable food and land-use systems.

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How does it work?

The Calculator works in step-by-step calculations, where each step depends on the previous one. For example:

FABLE Calculator how it works


The FABLE Calculator is free and publicly available. Get started by downloading the demo version and experimenting with different scenarios, including population growth, diets, trade, agricultural productivity, and conservation policies.

To access a country-specific FABLE Calculator, contact us at info.fable@unsdsn.org.


Explore the FABLE Calculator through our tutorials


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