The percentage of Gross Domestic Product (GDP) attributed to agriculture varies significantly worldwide, reflecting differing economic structures, development levels, and geographical factors. In developed economies such as the United States, United Kingdom, and Germany, agriculture typically contributes a modest share to GDP, generally less than 5%. This reflects the high levels of industrialization, services, and technology adoption prevalent in these countries, which diminishes the relative importance of agriculture in their overall economic output.

Conversely, in many developing countries across Africa, Asia, and parts of Latin America, agriculture plays a much more substantial role. It often constitutes a significant portion of GDP, ranging from 15% to over 30%. In these regions, agriculture remains a primary source of employment, livelihood, and food security for large segments of the population. The dependency on agriculture for economic output is influenced by factors such as climate conditions, infrastructure development, and policy frameworks supporting agricultural productivity and market access.

In the least developed countries, particularly in sub-Saharan Africa, agriculture can contribute even more significantly to GDP, sometimes exceeding 30% and occasionally reaching levels where it comprises half of the national economy. This underscores the critical importance of agriculture as a cornerstone of economic activity and underscores the challenges and opportunities inherent in transitioning towards more diversified and resilient economies.

Overall, while the precise percentage varies widely across countries and regions, agriculture remains a vital sector globally, impacting not only economic growth but also food security, rural development, and environmental sustainability.